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gs8170dw36/72ac-350/333/300/250 18mb 1x1dp cmos i/o double late write sigmaram? 250 mhz?350 mhz 1.8 v v dd 1.8 v i/o 209-bump bga commercial temp industrial temp rev: 1.03 12/2004 1/31 ? 2003, gsi technology specifications cited are subject to change without notice . for latest documentation see http://www.gsitechnology.com. features ? double late write mode, pipelined read mode ? jedec-standard sigmaram ? pinout and package ? 1.8 v +150/?100 mv core power supply ? 1.8 v cmos interface ? zq controlled user-selectable output drive strength ? dual cycle deselect ? burst read and write option ? fully coherent read and write pipelines ? echo clock outputs track data output drivers ? byte write operation (9-bit bytes) ? 2 user-programmable chip enable inputs ? ieee 1149.1 jtag-complia nt serial boundary scan ? 209-bump, 14 mm x 22 mm, 1 mm bump pitch bga package ? pin-compatible with future 36mb, 72mb, and 144mb devices sigmaram family overview gs8170 dw 36/72a sigmarams are built in compliance with the sigmaram pinout standard for synchronous srams. they are 18,874,368-bit (18mb) srams. this family of wide, very low voltage cmos i/o srams is designed to operate at the speeds needed to implemen t economical high performance networking systems. rams are offered in a number of configurations including late write, double late write, and double data rate (ddr). the logical differences between the protocols employed by these rams mainly involve various approaches to write cueing and data transfer rates. the ram ? family standard allows a user to implement the interface protocol best suited to the task at hand. functional description because sigmarams are synchronous devices, address data inputs and read/write control inputs are captured on the rising edge of the input clock. write cy cles are internally self-timed and initiated by the risi ng edge of the clock input. this feature eliminates complex off-chip write pulse generation required by asynchronous srams and simplifies input signal timing. rams support pipelined reads utilizing a rising-edge- triggered output register. they also utilize a dual cycle deselect (dcd) output deselect protocol. rams are implemented with high performance cmos technology and are packaged in a 209-bump bga. 209-bump, 14 mm x 22 mm bga 1 mm bump pitch, 11 x 19 bump array bottom view parameter synopsis key fast bin specs symbol - 350 cycle time tkhkh 2.86 ns access time tkhqv 1.7 ns
gs8170dw36/72ac-350/333/300/250 specifications cited are subject to change without notice . for latest documentation see http://www.gsitechnology.com. rev: 1.03 12/2004 2/31 ? 2003, gsi technology sigmaram pinouts 256k x 72 common i/o?top view (package c) 1234567891011 a dqg dqg a e2 a adv a e3 a dqb dqb b dqg dqg bc bg nc w abb bf dqb dqb c dqg dqg bh bd nc (144m) e1 nc be ba dqb dqb d dqg dqg v ss nc nc mcl nc nc v ss dqb dqb e dqg dqc v ddq v ddq v dd v dd v dd v ddq v ddq dqf dqb fdqcdqcv ss v ss v ss zq v ss v ss v ss dqf dqf g dqc dqc v ddq v ddq v dd ep2 v dd v ddq v ddq dqf dqf h dqc dqc v ss v ss v ss ep3 v ss v ss v ss dqf dqf j dqc dqc v ddq v ddq v dd mch v dd v ddq v ddq dqf dqf k cq2 cq2 ck nc v ss mcl v ss nc nc cq1 cq1 l dqh dqh v ddq v ddq v dd mch v dd v ddq v ddq dqa dqa m dqh dqh v ss v ss v ss mcl v ss v ss v ss dqa dqa n dqh dqh v ddq v ddq v dd mch v dd v ddq v ddq dqa dqa p dqh dqh v ss v ss v ss mcl v ss v ss v ss dqa dqa r dqd dqh v ddq v ddq v dd v dd v dd v ddq v ddq dqa dqe t dqd dqd v ss nc nc mcl nc nc v ss dqe dqe u dqd dqd nc a nc (72m) anc (36m) ancdqedqe vdqddqdaaaa1aaadqedqe w dqd dqd tms tdi a a0 a tdo tck dqe dqe ? 2002.06 11 x 19 bump bga?14 x 22 mm 2 body?1 mm bump pitch ? note: users of cmos i/o sigmarams may wish to connect ?nc, v ref ? and the ?nc, ck ? pins to v ref (i.e., v ddq /2) to allow alternate use of fu ture hstl i/o sigmarams.
gs8170dw36/72ac-350/333/300/250 specifications cited are subject to change without notice . for latest documentation see http://www.gsitechnology.com. rev: 1.03 12/2004 3/31 ? 2003, gsi technology 512k x 36 common i/o?top view (package c) 1234567891011 a nc nc a e2 a adv a e3 a dqb dqb b nc nc bc nc a w abb nc dqb dqb c nc nc nc bd nc (144m) e1 nc nc ba dqb dqb d nc nc v ss nc nc mcl nc nc v ss dqb dqb e nc dqc v ddq v ddq v dd v dd v dd v ddq v ddq nc dqb f dqc dqc v ss v ss v ss zq v ss v ss v ss nc nc g dqc dqc v ddq v ddq v dd ep2 v dd v ddq v ddq nc nc h dqc dqc v ss v ss v ss ep3 v ss v ss v ss nc nc j dqc dqc v ddq v ddq v dd mch v dd v ddq v ddq nc nc k cq2 cq2 ck nc v ss mcl v ss nc nc cq1 cq1 l nc nc v ddq v ddq v dd mch v dd v ddq v ddq dqa dqa m nc nc v ss v ss v ss mcl v ss v ss v ss dqa dqa n nc nc v ddq v ddq v dd mch v dd v ddq v ddq dqa dqa p nc nc v ss v ss v ss mcl v ss v ss v ss dqa dqa r dqd nc v ddq v ddq v dd v dd v dd v ddq v ddq dqa nc t dqd dqd v ss nc nc mcl nc nc v ss nc nc u dqd dqd nc a nc (72m) anc (36m) a ncncnc v dqd dqd a a a a1 a a a nc nc w dqd dqd tms tdi a a0 a tdo tck nc nc ? 2002.06 11 x 19 bump bga?14 x 22 mm 2 body?1 mm bump pitch ? note: users of cmos i/o sigmarams may wish to connect ?nc, v ref ? and the ?nc, ck ? pins to v ref (i.e., v ddq /2) to allow alternate use of fu ture hstl i/o sigmarams.
gs8170dw36/72ac-350/333/300/250 specifications cited are subject to change without notice . for latest documentation see http://www.gsitechnology.com. rev: 1.03 12/2004 4/31 ? 2003, gsi technology operation control all address, data and control inputs (with the exception of ep2, ep3, zq, and the mo de pins, l6, m6, and j6) are synchronized to rising clock edges. data in is captured on both rising and falling edges of ck. read and write operations must be initiated wit h the advance/load pin (adv) held low, in order to load the new address. device activation is accomplish ed by asserting all three of the chip enable inputs (e1 , e2, and e3). deasser tion of any one of the enable in puts will deactivate the device. it should be noted that only deactivation of the ram via e2 and/ or e3 deactivates the echo clocks, cq1?cq2. pin description table symbol description type comments a address input ? adv advance input active high bx byte write enable input active low w write enable input active low e1 chip enable input active low e2 & e3 chip enable input programmable active high or low ep2 & ep3 chip enable program pin mode input to be tied directly to v dd , v ddq or v ss ck clock input active high cq, cq echo clock output three state - deselect via e2 or e3 false dq data i/o input/output three state mch must connect high input active high to be tied directly to v dd or v ddq mcl must connect low input active low to be tied directly to v ss zq output impedance control mode input low = low impedance [high drive] high = high impedance [low drive] to be tied directly to v ddq or v ss tck test clock input active high tdi test data in input ? tdo test data out output ? tms test mode select input ? nc no connect ? not connected to die or any other pin v dd core power supply input 1.8 v nominal v ddq output driver power supply input 1.8 v nominal v ss ground input ?
gs8170dw36/72ac-350/333/300/250 specifications cited are subject to change without notice . for latest documentation see http://www.gsitechnology.com. rev: 1.03 12/2004 5/31 ? 2003, gsi technology read operations pipelined read read operation is initiated when the following conditions are satis fied at the rising edge of cloc k: all three chip enables (e1 , e2, and e3) are active, the writ e enable input signal (w ) is deasserted high, and adv is assert ed low. the address presented to the address inputs is latched into the address register and presented to the memory core and control logic. the control logic deter mines that a read access is in progress and allows the requested data to propagate to the input of the output re gister. at the next r ising edge of clock the read data is allowed to propagate through the output register and onto the output pins. write operations write operation occurs when the following co nditions are satisfied at the rising edge of clock: all thr ee chip enables (e1 , e2, and e3) are active, the write enable input signal (w ) is asserted low, and adv is asserted low. single data rate pipelined read f d address read ck e qc qd cq read deselect read read axxc key hi-z access adv qa /e 1 /w dq
gs8170dw36/72ac-350/333/300/250 specifications cited are subject to change without notice . for latest documentation see http://www.gsitechnology.com. rev: 1.03 12/2004 6/31 ? 2003, gsi technology double late write double late write means that data in is required on the third rising edge of clock. double late write is used to implement pipeline mode nbt srams. byte write control the byte write enable inputs (bx ) determine which bytes will be written. any combination of byte write enable control pins, including all or none, may be activated . a write cycle with no byte write in puts active is a write abort cycle. example of x36 byte write truth table function w ba bb bc bd read hxxxx write byte a l l h h h write byte b l h l h h write byte c l h h l h write byte d l h h h l write all bytes l l l l l write abort l h h h h sigmaram double late wr ite with pipelined read adv d d read write read write read cd f e ck address a b /e 1 /w dq qa cq key qc hi-z access d b
gs8170dw36/72ac-350/333/300/250 specifications cited are subject to change without notice . for latest documentation see http://www.gsitechnology.com. rev: 1.03 12/2004 7/31 ? 2003, gsi technology two byte write control example with double late write sigmaram special functions burst cycles although srams can sustain 100% bus bandwidth by eliminating the bus turnaround cycle in double late write mode, burst read or burst write cycles may also be performe d. srams provide an on-chip burst address generator that can be utilized, if desired , to simplify burst read or write implementations. the adv control pin, when driven high, comma nds the sram to advance the internal address counter and use the counter generated address to read or write the sram. the starting address for the first cy cle in a burst cycle series is loaded into the sram by driving the adv pin low, into load mode. d a db de d a dc /bb dqa0-dqa8 dqb0-dqb8 cq /e 1 adv /ba d c address a b adv ck write write f e write non-write write
gs8170dw36/72ac-350/333/300/250 specifications cited are subject to change without notice . for latest documentation see http://www.gsitechnology.com. rev: 1.03 12/2004 8/31 ? 2003, gsi technology sigmaram pipelined burst re ads with counter wrap-around internal address a2 a3 a0 a1 a2 cq dq qa2 qa3 qa1 counter wraps /e 1 a2 xx xx qa0 /w adv continue ck xx xx read continue continue continue external address
gs8170dw36/72ac-350/333/300/250 specifications cited are subject to change without notice . for latest documentation see http://www.gsitechnology.com. rev: 1.03 12/2004 9/31 ? 2003, gsi technology sigmaram double late wr ite sram burst writes wi th counter wrap-around burst order the burst address counter wraps around to its initial state after four internal addresses (the loaded address and three more) h ave been accessed. sigmarams always count in linear burst order. note: the burst counter wraps to initial state on the 5th rising edge of clock. echo clock srams feature echo clocks, cq1, cq2, cq 1 , and cq2 that track the performance of the ou tput drivers. the echo clocks are delayed copies of the main ram clock, ck. echo clocks are designed to track changes in output driver delays due to variance in die temperature and supply voltage. the echo clocks are designed to fire with th e rest of the data output drivers. sigmarams provide both in-phase, or true, echo clock outputs (cq1 and cq2) and inverted echo clock outputs (cq1 and cq2 ). it should be noted that deselection of the ram via e2 and e3 also deselects the echo clock output drivers. the deselection of echo clock drivers is always pipelined to the same degree as output data. deselection of the ram via e1 does not deactivate the echo clocks. linear burst order a[1:0] 1st address 00 01 10 11 2nd address 01 10 11 00 3rd address 10 11 00 01 4th address 11 00 01 10 adv counter wraps d1 d2 d0 /e 1 /w cq dq d2 d3 write continue xx internal address a2 a3 a0 a1 a2 ck address a2 xx continue continue continue xx xx xx
gs8170dw36/72ac-350/333/300/250 specifications cited are subject to change without notice . for latest documentation see http://www.gsitechnology.com. rev: 1.03 12/2004 10/31 ? 2003, gsi technology programmable enables rams feature two user-programmable chip en able inputs, e2 and e3. th e sense of the inputs, whether they function as active low or active high inputs, is determined by the state of the prog ramming inputs, ep2 and ep3. for example, if ep2 is held at v dd , e2 functions as an active high enable. if ep2 is held to v ss , e2 functions as an active low chip enable input. programmability of e2 and e3 allows four banks of de pth expansion to be accomp lished with no additional logic. by programming the enable inputs of four srams in binary sequence (00, 01, 10 , 11) and driving the enable inputs with two address inputs, four srams can be made to look like one larger ram to the system. example four bank depth expansion schematic? 1x1dp a ck e1 e2 e3 w a 0 ?a n ck w dq 0 ?dq n bank 0 bank 1 bank 2 bank 3 bank enable truth table ep2 ep3 e2 e3 bank 0 v ss v ss active low active low bank 1 v ss v dd active low active high bank 2 v dd v ss active high active low bank 3 v dd v dd active high active high e1 a n ? 1 a n a 0 ?a n ? 2 a n ? 1 a n a 0 ?a n ? 2 a n ? 1 a n a 0 ?a n ? 2 a n ? 1 a n a 0 ?a n ? 2 dq a ck e2 e3 w dq a ck e2 e3 w dq a ck e2 e3 w dq e1 e1 e1 cq cq cq cq cq ep2 ep3 0 0 ep2 ep3 1 0 ep2 ep3 0 1 ep2 ep3 1 1
gs8170dw36/72ac-350/333/300/250 specifications cited are subject to change without notice . for latest documentation see http://www.gsitechnology.com. rev: 1.03 12/2004 11/31 ? 2003, gsi technology it should be noted that deselection of the ram via e2 and e3 also deselects the echo clock output drivers. the deselection of echo clock drivers is always pipelined to the same degree as output data. deselection of the ram via e1 does not deactivate the echo clocks. in some applications it may be appropriate to pause between banks; to deselect both rams with e1 before resuming read operations. an e1 deselect at a bank switch will allow at least one clock to be issued from the new bank before the first read cycle in the bank. although the following drawing illustrates a e1 read pause upon switching from bank 1 to bank 2, a write to bank 2 would have the same effect, causing the ram in bank 2 to issue at least one cl ock before it is needed. echo clock contro l in two banks of sigmarams note: e1\ does not deselect the echo clock outputs. echo clock outputs are synchronously deselected by e2 or e3 being sampled f alse. qd cq bank 1 cq bank 2 dq bank 2 qb cq1 + cq2 qc address a b /e 1 /e2 bank 1 e2 bank 2 dq bank 1 qa adv f de c read read read ck read read
gs8170dw36/72ac-350/333/300/250 specifications cited are subject to change without notice . for latest documentation see http://www.gsitechnology.com. rev: 1.03 12/2004 12/31 ? 2003, gsi technology . cmos output driver impedance control cmos i/o sigmarams are supplied wi th selectable (high or low) impedance output drivers. the zq pin allows selection between sram nominal drive strength (zq low) for multi-drop bus appl ications and low drive strength (zq high) point-to-point applications. pipelined read bank switch with e1 deselect note: e1\ does not deselect the echo clock outputs. echo clock outputs are synchronously deselected by e2 or e3 being sampled f alse. qd qc cq bank 1 cq1 + cq2 cq bank 2 dq bank 2 qa address a xx adv /e 1 /e2 bank 1 e2 bank 2 dq bank 1 f de c read read read ck read no op
gs8170dw36/72ac-350/333/300/250 specifications cited are subject to change without notice . for latest documentation see http://www.gsitechnology.com. rev: 1.03 12/2004 13/31 ? 2003, gsi technology double late write, pipe lined read truth table ck e1 (t n ) e (t n ) adv (t n ) w (t n ) b (t n ) previous operation current operation dq/cq (t n ) dq/cq (t n+1 ) dq/cq (t n+2 ) 0 1 x f 0 x x x bank deselect ***/*** hi-z/hi-z --- 0 1 x x 1 x x bank deselect bank deselect (continue) hi-z/hi-z hi-z/hi-z --- 0 1 1 t 0 x x x deselect ***/*** hi-z/cq --- 0 1 x x 1 x x deselect deselect (continue) hi-z/cq hi-z/cq --- 0 10 t 0 0 t x write loads new address stores dqx if bx = 0 ***/*** ***/*** d1/cq 0 10 t 0 0 f x write (abort) loads new address no data stored ***/*** ***/*** hi-z/cq 0 1x x 1 x t write write continue increments address by 1 stores dqx if bx = 0 ***/*** dn-1/cq dn/cq 0 1x x 1 x f write write continue (abort) increments address by 1 no data stored ***/*** dn-1/cq hi-z/cq 0 10 t 0 1 x x read loads new address ***/*** q1/cq --- 0 1x x 1 x x read read continue increments address by 1 qn-1/cq qn/cq --- notes: 1. if e2 = ep2 and e3 = ep3, then e = ?t? else e = ?f?. 2. if one or more bx = 0, then b = ?t? else b = ?f?. 3. ?1? = input ?high?; ?0? = input ?low?; ?x? = input ?don?t care?; ?t? = input ?t rue?; ?f? = input ?false?. 4. ?***? indicates that the dq input requirement / output stat e and cq output state are determi ned by the previous operation. 5. ?---? indicates that the dq input requirement / output state and cq output state are determined by the next operation. 6. dqs are tristated in response to bank deselect, deselec t, and write commands, one full cycle after the command is sampled. 7. cqs are tristated in response to bank deselect commands only, one full cycle after the command is sampled. 8. up to three (3) continue operations may be initiated after a re ad or write operation is initiated to burst transfer up to fou r (4) distinct pieces of data per single external address input. if a fourth (4th) cont inue operation is initiated, t he internal address wraps back t o the initial exter- nal (base) address.
gs8170dw36/72ac-350/333/300/250 specifications cited are subject to change without notice . for latest documentation see http://www.gsitechnology.com. rev: 1.03 12/2004 14/31 ? 2003, gsi technology common i/o state diagram notes: 1. the notation ?x,x,x,x? controlling the state tr ansitions above indicate the states of inputs e1 , e, adv, and w respectively. 2. if (e2 = ep2 and e3 = ep3) then e = ?t? else e = ?f?. 3. ?1? = input ?high?; ?0? = input ?low?; ?x? = input ?don?t care?; ?t? = input ?true?; ?f? = input ?false?. deselect bank deselect read read write write continue x,f,0,x or x,x,1,x continue x,f,0,x 1,t,0,x x,f,0,x 1,t,0,x 1,t,0,x x,f,0,x 1,t,0,x 1,t,0,x or x,x,1,x 0,t,0,0 0,t,0,1 0,t,0,0 0,t,0,1 x,f,0,x x,f,0,x 0,t,0,0 0,t,0,1 x,x,1,x x,x,1,x 0,t,0,0 0,t,0,1 1,t,0,x 0,t,0,0 0,t,0,1 x,x,1,x x,x,1,x 0,t,0,1 0,t,0,0 clock (ck) command current state next state ???? current state & next st ate definition for read /write control state diagram current state (n) next state (n + 1) transition ? input command code key n n+1 n+2 n+3
gs8170dw36/72ac-350/333/300/250 specifications cited are subject to change without notice . for latest documentation see http://www.gsitechnology.com. rev: 1.03 12/2004 15/31 ? 2003, gsi technology note: permanent damage to the device may occur if the absolute maximum ratings are exceeded. operation should be restricted to recomm ended operating conditions. exposure to conditions exceeding the recommended operating conditions, for an extended period of time, ma y affect reliability of this component. recommended oper ating conditions absolute maximum ratings (all voltages reference to v ss ) symbol description value unit v dd voltage on v dd pins ?0.5 to 2.5 v v ddq voltage in v ddq pins ?0.5 to v dd v v i/o voltage on i/o pins ?0.5 to v ddq + 0.5 ( 2.5 v max.) v v in voltage on other input pins ?0.5 to v ddq + 0.5 ( 2.5 v max.) v i in input current on any pin +/?100 ma dc i out output current on any i/o pin +/?100 ma dc t j maximum junction temperature 125 o c t stg storage temperature ?55 to 125 o c power supplies parameter symbol min. typ. max. unit notes supply voltage v dd 1.7 1.8 1.95 v 1.8 v i/o supply voltage v ddq 1.7 1.8 v dd v ambient temperature (commercial range versions) t a 02570 c1 ambient temperature (industrial range versions) t a ?40 25 85 c1 note: the part number of industrial temperature range versions end the character ?i?. unless otherwise noted, all performance specifi cations quoted are evaluated for worst case in the temperature range marked on the device. cmos i/o dc input characteristics parameter symbol min. typ. max. unit notes cmos input high voltage v ih 0.65 * v ddq ? v ddq + 0.3 v1 cmos input low voltage v il ?0.3 ? 0.35 * v ddq v1 note: for devices supplied with cmos input buffers. compatible with both 1.8 v and 1.5 v i/o drivers.
gs8170dw36/72ac-350/333/300/250 specifications cited are subject to change without notice . for latest documentation see http://www.gsitechnology.com. rev: 1.03 12/2004 16/31 ? 2003, gsi technology note: this parameter is sample tested. ac test load diagram capacitance (t a = 25 o c, f = 1 mh z , v dd = 1.8 v) parameter symbol test conditions typ. max. unit input capacitance c in v in = 0 v 45pf output capacitance c out v out = 0 v 67pf ac test conditions parameter conditions input high level v ddq input low level 0 v max. input slew rate 2 v/ns input reference level v ddq /2 output reference level v ddq /2 20% tkc v ss ? 1.0 v 50% v ss v ih undershoot measurement and timing overshoot measurement and timing 20% tkc v dd + 1.0 v 50% v dd v il dq vt = v ddq /2 50 ? rq = 250 ? (hstl i/o)
gs8170dw36/72ac-350/333/300/250 specifications cited are subject to change without notice . for latest documentation see http://www.gsitechnology.com. rev: 1.03 12/2004 17/31 ? 2003, gsi technology input and output leakage characteristics parameter symbol test co nditions min. max notes input leakage current (except mode pins) i il v in = 0 to v ddq ?2 ua 2 ua ? zq, mch, mcl, ep2, ep3 pin input current i inm v in = 0 to v ddq ?50 ua 50 ua ? output leakage current i ol output disable, v out = 0 to v ddq ?2 ua 2 ua ? selectable impedance output dri ver dc electrical characteristics parameter symbol test co nditions min. max notes low drive output high voltage v ohl i ohl = ?4 ma v ddq ? 0.4 v ?1 low drive output low voltage v oll i oll = 4 ma ? 0.4 v 1 high drive output high voltage v ohh i ohh = ?8 ma v ddq ? 0.4 v ?2 high drive output low voltage v olh i olh = 8 ma ? 0.4 v 2 notes: 1. zq = 1; high impedance output driver setting 2. zq = 0; low impedance output driver setting
gs8170dw36/72ac-350/333/300/250 specifications cited are subject to change without notice . for latest documentation see http://www.gsitechnology.com. rev: 1.03 12/2004 18/31 ? 2003, gsi technology operating currents parameter symbol -350 -333 -300 -250 test conditions 0c to 70c ?40c to +85c 0c to 70c ?40c to +85c 0c to 70c ?40c to +85c 0c to 70c ?40c to +85c operating current x72 i ddp (pl) 365 ma 375 ma 345 ma 355 ma 320 ma 330 ma 275 ma 285 ma e1 v il max. tkhkh tkhkh min. all other inputs v il v in v ih x36 i ddp (pl) 265 ma 275 ma 245 ma 255 ma 225 ma 235 ma 200 ma 210 ma chip disable current x72 i sb1 (pl) 80 ma 90 ma 75 ma 85 ma 70 ma 80 ma 65 ma 75 ma e1 v ih min. or tkhkh tkhkh min. all other inputs v il v in v ih x36 i sb1 (pl) 75 ma 85 ma 70 ma 80 ma 65 ma 75 ma 60 ma 70 ma bank deselect current x72 i sb2 (pl) 80 ma 90 ma 75 ma 85 ma 70 ma 80 ma 65 ma 75 ma e2 or e3 false tkhkh tkhkh min. all other inputs v il v in v ih x36 i sb2 (pl) 75 ma 85 ma 70 ma 80 ma 65 ma 75 ma 60 ma 70 ma cmos deselect current i dd3 45 ma 55 ma 45 ma 55 ma 45 ma 55 ma 45 ma 55 ma device deselected all inputs v ss + 0.10 v v in v dd ? 0.10 v
gs8170dw36/72ac-350/333/300/250 specifications cited are subject to change without notice . for latest documentation see http://www.gsitechnology.com. rev: 1.03 12/2004 19/31 ? 2003, gsi technology ac electrical characteristics parameter symbol -350 -333 -300 -250 unit notes min max min max min max min max clock cycle time tkhkh 2.86 ? 3.0 ? 3.3 ? 4.0 ? ns ? clock high time tkhkl 1.0 ? 1.2 ? 1.3 ? 1.6 ? ns ? clock low time tklkh 1.0 ? 1.2 ? 1.3 ? 1.6 ? ns ? clock high to echo clock low-z tkhcx1 0.5 ? 0.5 ? 0.5 ? 0.5 ? ns 2 clock high to echo clock high tkhch ? 1.7 ? 1.8 1.8 ? 2.1 ns ? clock low to echo clock low tklcl ? 1.7 ? 1.8 1.8 ? 2.1 ns clock high to echo clock high-z tkhcz ? 1.7 ? 1.8 1.8 ? 2.1 ns 1, 2 clock high to output low-z tkhqx1 0.5 ? 0.5 ? 0.5 ? 0.5 ? ns 1 clock high to output valid tkhqv ? 1.7 ? 1.8 1.8 ? 2.1 ns ? clock high to output invalid tkhqx 0.5 ? 0.5 ? 0.5 ? 0.5 ? ns ? clock high to output high-z tkhqz ? 1.7 ? 1.8 1.8 ? 2.1 ns 1 echo clock high to output valid tchqv ? 0.35 ? 0.35 ? 0.38 ? 0.45 ns 2 echo clock high to output invalid tchqx ?0.35 ? ?0.35 ? ?0.38 ? ?0.45 ? ns 2 address valid to clock high tavkh 0.4 ? 0.6 ? 0.7 ? 0.8 ? ns ? clock high to address don?t care tkhax 0.4 ? 0.4 ? 0.4 ? 0.5 ? ns ? enable valid to clock high tevkh 0.4 ? 0.6 ? 0.7 ? 0.8 ? ns ? clock high to enable don?t care tkhex 0.4 ? 0.4 ? 0.4 ? 0.5 ? ns ? write valid to clock high twvkh 0.4 ? 0.6 ? 0.7 ? 0.8 ? ns ? clock high to write don?t care tkhwx 0.4 ? 0.4 ? 0.4 ? 0.5 ? ns ? byte write valid to clock high tbvkh 0.4 ? 0.6 ? 0.7 ? 0.8 ? ns ? clock high to byte write don?t care tkhbx 0.4 ? 0.4 ? 0.4 ? 0.5 ? ns ? data in valid to clock high tdvkh 0.4 ? 0.5 ? 0.5 ? 0.5 ? ns ? clock high to data in don?t care tkhdx 0.4 ? 0.4 ? 0.4 ? 0.5 ? ns ? adv valid to clock high tadvvkh 0.4 ? 0.6 ? 0.7 ? 0.8 ? ns ? clock high to adv don?t care tkhadvx 0.4 ? 0.4 ? 0.4 ? 0.5 ? ns ? notes: 1. measured at 100 mv from steady state. not 100% tested. 2. guaranteed by design. not 100% tested. 3. for any specific temperature and voltage tkhcz < tkhcx1.
gs8170dw36/72ac-350/333/300/250 specifications cited are subject to change without notice . for latest documentation see http://www.gsitechnology.com. rev: 1.03 12/2004 20/31 ? 2003, gsi technology timing parameter key?pipe lined read cycle timing tkhqx tkhqz tkhqx1 tkhqv tavkh tkhax ck a dq (data out) tkhkh tklkh tkhkl cd e qb cq tchqv tkhch tkhcx1 tkhcz = cq high z tclch tchcl tchqx
gs8170dw36/72ac-350/333/300/250 specifications cited are subject to change without notice . for latest documentation see http://www.gsitechnology.com. rev: 1.03 12/2004 21/31 ? 2003, gsi technology timing parameter key?double late writ e mode control and data in timing jtag port operation overview the jtag port on this ram operates in a manner that is compliant with ieee standard 1149.1-1990, a serial boundary scan interface standard (commonly referred to as jtag). the jtag port input inte rface levels scale with v dd . the jtag output drivers are powered by v ddq . disabling the jtag port it is possible to use this device without utilizing the jtag port. the port is reset at power-up and will remain inactive unles s clocked. tck, tdi, and tms are designed with internal pull-up circuits.to assure normal operation of the ram with the jtag port unused, tck, tdi, and tms may be left floating or tied to either v dd or v ss . tdo should be left unconnected. tkhnx tnvkh tavkh tkhax ck a ab c e1 , e2, e3, w , bx , adv tkhdx tdvkh da dq (data in) note: tnvkh = tevkh, twvkh, tbvkh, etc. and tkhnx = tk hex, tkhwx, tkhbx, etc.
gs8170dw36/72ac-350/333/300/250 specifications cited are subject to change without notice . for latest documentation see http://www.gsitechnology.com. rev: 1.03 12/2004 22/31 ? 2003, gsi technology jtag port registers overview the various jtag registers, refered to as test access port ortap registers, are select ed (one at a time) via the sequences of 1 s and 0s applied to tms as tck is strobed. each of the tap regist ers is a serial shift register that captures serial input data o n the rising edge of tck and pushes serial data out on the next falling edge of tck. when a register is selected, it is placed betwe en the tdi and tdo pins. instruction register the instruction register holds the instructi ons that are executed by the ta p controller when it is moved into the run, test/idl e, or the various data register states. instructions are 3 bits long. th e instruction register can be lo aded when it is placed betwee n the tdi and tdo pins. the instruction register is automatically preloa ded with the idcode instruction at power-up or whenever the controller is placed in test-logic-reset state. bypass register the bypass register is a single bit register that can be placed between tdi and tdo. it allows serial test data to be passed th rough the ram?s jtag port to another device in the scan chain with as little delay as possible. boundary scan register the boundary scan register is a collection of flip flops that can be preset by the logic level found on the ram?s input or i/o pins. the flip flops are then daisy chained togeth er so the levels found can be shifted seri ally out of the jtag port?s tdo pin. the boundary scan register also includes a number of place holder flip fl ops (always set to a logic 1). the relationship between t he device pins and the bits in the boundary scan register is de scribed in the scan order table following. the boundary scan register, under the control of the tap contro ller, is loaded with the contents of the rams i/o ring when the controller is in capture-dr state and then is placed between the tdi and tdo pins when the controller is moved to shift- dr state. sample-z, sample/preload and extest instructions can be us ed to activate the boundary scan register. jtag pin descriptions pin pin name i/o description tck test clock in clocks all tap events. all i nputs are captured on the rising edge of tck and all outputs propagate from the falling edge of tck. tms test mode select in the tms input is sampled on the rising edge of tck. this is the command input for the tap controller state machine. an undriven tms input wi ll produce the same result as a logic one input level. tdi test data in in the tdi input is sampled on the rising edge of tck. this is the input side of the serial registers placed between tdi and tdo. the register pl aced between tdi and tdo is determined by the state of the tap controller state machine and the instruction that is currently loaded in the tap instruction register (refer to the tap controll er state diagram). an undriven tdi pin will produce the same result as a logic one input level. tdo test data out out output that is active depending on the state of the tap state machine. output changes in response to the falling edge of tck. this is the out put side of the serial registers placed between tdi and tdo. note: this device does not have a trst (tap rese t) pin. trst is optional in ieee 1149.1. the test-logic-reset state is entered while tms is held high for five rising edges of tck. the tap cont roller is also reset automaticly at power-up.
gs8170dw36/72ac-350/333/300/250 specifications cited are subject to change without notice . for latest documentation see http://www.gsitechnology.com. rev: 1.03 12/2004 23/31 ? 2003, gsi technology jtag tap block diagram identification (id) register the id register is a 32-bit register that is loaded with a device and vendor specific 32-bit code when the controller is put in capture-dr state with the idcode command loaded in the instruction re gister. the code is loaded from a 32-bit on-chip rom. it describes various attributes of the ram as indicated below. the register is then placed between the tdi and tdo pins when th e controller is moved into shift- dr state. bit 0 in the register is the lsb and the first to reach tdo when shifting begins. instruction register id code register boundary scan register 0 1 2 0 31 30 29 1 2 0 bypass register tdi tdo tms tck test access port (tap) controller 108 1 0 control signals
gs8170dw36/72ac-350/333/300/250 specifications cited are subject to change without notice . for latest documentation see http://www.gsitechnology.com. rev: 1.03 12/2004 24/31 ? 2003, gsi technology tap controller instruction set overview there are two classes of instructions defined in the standard 1149.1-1990; the standard (public) instructions, and device speci fic (private) instructions. some public instructions are mandator y for 1149.1 compliance. optional public instructions must be implemented in prescribed ways. the tap on th is device may be used to monitor all inpu t and i/o pads, and can be used to load address, data or control signals into the ram or to preload the i/o buffers. when the tap controller is placed in captur e-ir state the two least significant bits of the instruction regi ster are loaded wit h 01. when the controller is moved to the shift-ir state the instructi on register is placed between tdi and tdo. in this state the de sired instruction is serially loaded through the tdi input (while the previous contents are shifted out at tdo). for all instructions , the tap executes newly loaded instruct ions only when the controller is moved to update-ir state. the tap instruction set for this device is listed in the following table. id register contents die revision code not used i/o configuration gsi technology jedec vendor id code presence register bit # 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 x72 xxxx0000000000001001000110110011 x36 xxxx0000000000001000000110110011
gs8170dw36/72ac-350/333/300/250 specifications cited are subject to change without notice . for latest documentation see http://www.gsitechnology.com. rev: 1.03 12/2004 25/31 ? 2003, gsi technology jtag tap controller state diagram instruction descriptions bypass when the bypass instruction is loaded in the instruction register the bypass regi ster is placed between tdi and tdo. this occurs when the tap controller is moved to the shift-dr state. this allows the boa rd level scan path to be shortened to facili- tate testing of other devices in the scan path. sample/preload sample/preload is a standard 1149.1 mandatory public in struction. when the sample / preload instruction is loaded in the instruction register, moving the tap controller into the capture-dr state loads the data in the rams input and i/o buffers into the boundary scan register. boundary scan regist er locations are not associated with an input or i/o pin, and are loaded with the default stat e identified in the boundary s can chain table at the end of th is section of the datasheet. beca use the ram clock is independent from the tap clock (tck) it is possible for the tap to attempt to capture the i/o ring contents while the input buffers are in transition (i.e. in a metastable state). although allowing the tap to sample metastable inputs w ill not harm the device, repeatable results cannot be expected. ram input signals must be stabilized for long enough to meet the taps input data capture set-up plus hold time (tts plus tth) . the rams clock inputs need not be paused for any other tap operation except capturing the i/o ring contents into the boundary s can register. moving the contro ller to shift-dr state then places the boundary scan register between the tdi and tdo pins. extest extest is an ieee 1149.1 mandatory public instruction. it is to be executed whenever the instru ction register is loaded with all logic 0s. the extest command does not block or override th e ram?s input pins; therefore, the ram?s internal state is still determined by its input pins. select dr capture dr shift dr exit1 dr pause dr exit2 dr update dr select ir capture ir shift ir exit1 ir pause ir exit2 ir update ir test logic reset run test idle 0 0 1 0 1 1 0 0 1 1 1 0 0 1 1 0 0 0 0 1 1 0 0 1 10 0 0 1 11 1
gs8170dw36/72ac-350/333/300/250 specifications cited are subject to change without notice . for latest documentation see http://www.gsitechnology.com. rev: 1.03 12/2004 26/31 ? 2003, gsi technology typically, the boundary scan re gister is loaded with the desired pattern of data with the sample/preload command. then the extest command is used to outp ut the boundary scan register?s contents, in parallel, on the ram?s data output drivers on the falling edge of tck when the controller is in the update-ir state. alternately, the boundary scan register may be loaded in parallel using the extest command. when the extest instruc- tion is selected, the sate of all the ram?s input and i/o pins, as well as the default values at scan register locations not as so- ciated with a pin, are transfer red in parallel into the boundary scan regist er on the rising edge of tck in the capture-dr state, the ram?s output pins drive out the value of the boundary scan register location with which each output pin is associ- ated. idcode the idcode instruction causes the id rom to be loaded into the id register when the controller is in capture-dr mode and places the id register between the tdi a nd tdo pins in shift-dr mode. the idcode instruction is the default instruction loaded in at power up and any time the controller is placed in the test-logic-reset state. sample-z if the sample-z instruction is loaded in the instruction register, all ram outputs are forced to an inactiv e drive state (high- z) and the boundary scan register is connected between tdi and t do when the tap controller is moved to the shift-dr state. rfu these instructions are reserved fo r future use. in this device they replicate the bypass instruction. jtag tap instruction set summary instruction code description notes extest 000 places the boundary scan register between tdi and tdo. 1 idcode 001 preloads id register and places it between tdi and tdo. 1, 2 sample-z 010 captures i/o ring contents. places the b oundary scan register between tdi and tdo. forces all ram output drivers to high-z. 1 rfu 011 do not use this instruction; reserved for future use. replicates bypass instruction. places bypass register between tdi and tdo. 1 sample/ preload 100 captures i/o ring contents. places the b oundary scan register between tdi and tdo. 1 gsi 101 gsi private instruction. 1 rfu 110 do not use this instruction; reserved for future use. replicates bypass instruction. places bypass register between tdi and tdo. 1 bypass 111 places bypass regist er between tdi and tdo. 1 notes: 1. instruction codes expressed in binary, msb on left, lsb on right. 2. default instruction automatically loaded at power-up and in test-logic-reset state.
gs8170dw36/72ac-350/333/300/250 specifications cited are subject to change without notice . for latest documentation see http://www.gsitechnology.com. rev: 1.03 12/2004 27/31 ? 2003, gsi technology jtag port recommended operating conditions and dc characteristics parameter symbol min. max. unit notes test port input high voltage v ihj 0.6 * v dd v dd +0.3 v1 test port input low voltage v ilj ? 0.3 0.3 * v dd v1 tms, tck and tdi input leakage current i inhj ? 300 1 ua 2 tms, tck and tdi input leakage current i inlj ? 1 100 ua 3 tdo output leakage current i olj ? 11ua4 test port output high voltage v ohj 1.7 ? v5, 6 test port output low voltage v olj ? 0.4 v 5, 7 test port output cmos high v ohjc v ddq ? 100 mv ? v5, 8 test port output cmos low v oljc ? 100 mv v 5, 9 notes: 1. input under/overshoot voltage must be ? 2 v > vi < v ddn +2 v not to exceed 3.6 v maximum, with a pulse width not to exceed 20% ttkc. 2. v ilj v in v ddn 3. 0 v v in v iljn 4. output disable, v out = 0 to v ddn 5. the tdo output driver is served by the v ddq supply. 6. i ohj = ? 4 ma 7. i olj = + 4 ma 8. i ohjc = ?100 ua 9. i ohjc = +100 ua notes: 1. include scope and jig capacitance. 2. test conditions as as shown unless otherwise noted. jtag port ac test conditions parameter conditions input high level v dd ? 0.2 v input low level 0.2 v input slew rate 1 v/ns input reference level v ddq /2 output reference level v ddq /2 dq v ddq /2 50 ? 30pf * jtag port ac test load * distributed test jig capacitance
gs8170dw36/72ac-350/333/300/250 specifications cited are subject to change without notice . for latest documentation see http://www.gsitechnology.com. rev: 1.03 12/2004 28/31 ? 2003, gsi technology jtag port timing diagram jtag port ac electrical characteristics parameter symbol min max unit tck cycle time ttkc 50 ? ns tck low to tdo valid ttkq ? 20 ns tck high pulse width ttkh 20 ? ns tck low pulse width ttkl 20 ? ns tdi & tms set up time tts 10 ? ns tdi & tms hold time tth 10 ? ns tth tts ttkq tth tts tth tts ttkl ttkl ttkh ttkh ttkc ttkc tck tdi tms tdo parallel sram input
gs8170dw36/72ac-350/333/300/250 specifications cited are subject to change without notice . for latest documentation see http://www.gsitechnology.com. rev: 1.03 12/2004 29/31 ? 2003, gsi technology 209 bga package drawing (package c) 14 mm x 22 mm body, 1.0 mm bump pitch, 11 x 19 bump array symbol min typ max units symbol min typ max units a ? ? 1.70 mm d1 ? 18.0 (bsc) ? mm a1 0.40 0.50 0.60 mm e 13.9 14.0 14.1 mm ? b 0.50 0.60 0.70 mm e1 ? 10.0 (bsc) ? mm c 0.31 0.36 0.38 mm e ? 1.00 (bsc) ? mm d 21.9 22.0 22.1 mm aaa ?0.15? mm rev 1.0 a a1 c ? b e e e e1 d1 d aaa bottom view side view
gs8170dw36/72ac-350/333/300/250 specifications cited are subject to change without notice . for latest documentation see http://www.gsitechnology.com. rev: 1.03 12/2004 30/31 ? 2003, gsi technology ? ordering information?gsi sigmaram org part number type i/o speed (mhz) t a 512k x 36 gs8170 dw 36ac-350 double late write 1x1 d p ram cmos 350mhz c 512k x 36 gs8170 dw 36ac-333 double late write 1x1 d p ram cmos 333 mhz c 512k x 36 gs8170 dw 36ac-300 double late write 1x1 d p ram cmos 300 mhz c 512k x 36 gs8170 dw 36ac-250 double late write 1x1 d p ram cmos 250 mhz c 512k x 36 gs8170 dw 36ac-350i double late write 1x1 d p ram cmos 350 mhz i 512k x 36 gs8170 dw 36ac-333i double late write 1x1 d p ram cmos 333 mhz i 512k x 36 gs8170 dw 36ac-300i double late write 1x1 d p ram cmos 300 mhz i 512k x 36 gs8170 dw 36ac-250i double late write 1x1 d p ram cmos 250 mhz i 256k x 72 gs8170 dw 72ac-350 double late write 1x1 d p ram cmos 350mhz c 256k x 72 gs8170 dw 72ac-333 double late write 1x1 d p ram cmos 333 mhz c 256k x 72 gs8170 dw 72ac-300 double late write 1x1 d p ram cmos 300 mhz c 256k x 72 gs8170 dw 72ac-250 double late write 1x1 d p ram cmos 250 mhz c 256k x 72 gs8170 dw 72ac-350i double late write 1x1 d p ram cmos 350 mhz i 256k x 72 gs8170 dw 72ac-333i double late write 1x1 d p ram cmos 333 mhz i 256k x 72 gs8170 dw 72ac-300i double late write 1x1 d p ram cmos 300 mhz i 256k x 72 gs8170 dw 72ac-250i double 5late write 1x1 d p ram cmos 250 mhz i notes: 1. customers requiring delivery in tape and r eel should add the character ?t? to the end of the part number. example: gs817xx72c -300t. 2. t a = c = commercial temperature range. t a = i = industrial temperature range.
gs8170dw36/72ac-350/333/300/250 specifications cited are subject to change without notice . for latest documentation see http://www.gsitechnology.com. rev: 1.03 12/2004 31/31 ? 2003, gsi technology 18mb sync ram datasheet revision history ds/daterev. code: old; new types of changes format or content page;revisions;reason 8170dwxxa_r1 ? creation of new datasheet 8170dwxxa_r1; 8170dwxxa_r1_01 ? updated 350 mhz ac specs 8170dwxxa_r1_01; 8170dwxxa_r1_02 format ? updated format 8170dwxxa_r1_02; 8170dwxxa_r1_03 content ? removed preliminary banner due to qualification of part ? corrected jtag information

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