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GS84118AT/B-166/150/130/100
TQFP, BGA Commercial Temp Industrial Temp
256K x 18 Sync Cache Tag
166 MHz-100 MHz 3.3 V VDD 3.3 V and 2.5 V I/O
Features * 3.3 V +10%/-5% core power supply * 2.5 V or 3.3 V I/O supply * Intergrated data comparator for Tag RAM application * FT mode pin for flow through or pipeline operation * LBO pin for Linear or Interleave (PentiumTM and X86) Burst mode * Synchronous address, data I/O, and control inputs * Synchronous Data Enable (DE) * Asynchronous Output Enable (OE) * Asynchronous Match Output Enable (MOE) * Byte Write (BWE) and Global Write (GW) operation * Three chip enable signals for easy depth expansion * Internal self-timed write cycle * JTAG Test mode conforms to IEEE standard 1149.1 * JEDEC-standard 100-lead TQFP and 119-BGA packages * Pb-Free 100-lead TQFP package available Functional Description The GS84118A is a 256K x 18 high performance synchronous SRAM with integrated Tag RAM comparator. A 2-bit burst counter is included to provide burst interface with PentiumTM and other high performance CPUs. It is designed to be used as a Cache Tag SRAM, as well as data SRAM. Addresses, data IOs, match output, chip enables (CE1, CE2, CE3), address control inputs (ADSP, ADSC, ADV), and write control inputs (BW1, BW2, BWE, GW, DE) are synchronous and are controlled by a positive-edge-triggered clock (CLK). Output Enable (OE), Match Output Enable, and power down control (ZZ) are asynchronous. Burst can be initiated with either ADSP or ADSC inputs. Subsequent burst addresses are generated internally and are controlled by ADV. The burst sequence is either interleave order (PentiumTM or x86) or linear order, and is controlled by LBO.
Output registers and the Match output register are provided and controlled by the FT mode pin (Pin 14). Through use of the FT mode pin, I/O registers can be programmed to perform pipeline or flow through operation. Flow Through mode reduces latency. Byte write operation is performed by using Byte Write Enable (BWE) input combined with two individual byte write signals BW1-2. In addition, Global Write (GW) is available for writing all bytes at one time. Compare cycles begin as a read cycle with output disabled so that compare data can be loaded into the data input register. The comparator compares the read data with the registered input data and a match signal is generated. The match output can be either in Pipeline or Flow Through modes controlled by the FT signal. Low power (Standby mode) is attained through the assertion of the ZZ signal, or by stopping the clock (CLK). Memory data is retained during Standby mode. JTAG boundary scan interface is provided using IEEE standard 1149.1 protocol. Four pins--Test Data In (TDI), Test Data Out (TDO), Test Clock (TCK) and Test Mode Select (TMS)--are used to perform JTAG function. The GS84118A operates on a 3.3 V power supply and all inputs/outputs are 3.3 V or 2.5 V LVTTL-compatible. Separate output (VDDQ) pins are used to allow both 3.3 V or 2.5 V IO interface.
* Pentium is a trademark of Intel Corp.
Parameter Synopsis
-166 Pipeline 3-1-1-1 Flow Through 2-1-1-1 tcycle tKQ IDD tKQ tcycle IDD 6.0 ns 3.5 ns 310 mA 8.5 ns 10 ns 190 mA -150 6.6 ns 3.8 ns 275 mA 10 ns 10 ns 190 mA -133 7.5 ns 4.0 ns 250 mA 11 ns 15 ns 140 mA -100 10 ns 4.5 ns 190 mA 12 ns 15 ns 140 mA
Rev: 1.02 4/2005
1/20
(c) 2001, GSI Technology
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com. * Pentium is a trademark of Intel
GS84118AT/B-166/150/130/100
Pin Configuration
VDDQ VSS NC NC DQ DQ VSS VDDQ DQ DQ FT VDD NC VSS DQ DQ VDDQ VSS DQ DQ DQP NC VSS VDDQ NC NC NC
NC NC NC
100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 1 80 2 79 3 78 4 77 5 76 6 75 7 74 8 73 9 72 256K x 18 10 71 Top View 11 70 12 69 13 68 14 67 15 66 16 65 17 64 18 63 19 62 20 61 21 60 22 59 23 58 24 57 25 56 26 55 27 54 28 53 29 52 30 51 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
A A CE1 CE2 NC NC BW2 BW1 CE3 VDD VSS CLK GW BWE OE ADSC ADSP ADV A A
A NC NC VDDQ VSS NC DQP DQ DQ VSS VDDQ DQ DQ VSS NC VDD ZZ DQ DQ VDDQ VSS DQ DQ NC NC VSS VDDQ
MATCH
DE MOE
Rev: 1.02 4/2005
LBO A A A A A1 A0 TMS TDI VSS VDD TDO TCK A A A A A A A 2/20
(c) 2001, GSI Technology
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
GS84118AT/B-166/150/130/100
84118A PadOut--119-Bump BGA--Top View
1 A B C D E F G H J K L M N P R T U
VDDQ NC NC DQB NC VDDQ NC DQB VDDQ NC DQB VDDQ DQB NC NC NC VDDQ
2
A E2 A NC DQB NC DQB NC VDD DQB NC DQB NC DQP A A TMS
3
A A A VSS VSS VSS BB VSS NC VSS NC VSS VSS VSS LBO A TDI
4
ADSP ADSC VDD NC E1 G ADV GW VDD CK NC BW A1 A0 VDD NC TCK
5
A A A VSS VSS VSS NC VSS NC VSS BA VSS VSS VSS FT A TDO
6
A E3 A DQP NC DQA NC DQA VDD NC DQA MATCH DQA MOE A A NC
7
VDDQ NC NC NC DQA VDDQ DQA NC VDDQ DQA NC VDDQ DE DQA NC ZZ VDDQ
Rev: 1.02 4/2005
3/20
(c) 2001, GSI Technology
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
GS84118AT/B-166/150/130/100
Pin Description Symbol
An CLK BWE BW1 BW2 GW CE1,CE2, CE3 OE ADV ADSP, ADSC DQ1-DQ16 DQP1-DQP2 MATCH MOE DE ZZ FT LBO TMS TDI TDO TCK VDD VSS VDDQ NC
Description
Address Input Signals Clock Input Signal Byte Write Enable Signal--The byte write enable signal needs to be combined with one of the four byte write signals for a write operation to occur. Byte Write signal for data outputs 1 thru 8 Byte Write signal for data outputs 9 thru 16 Global Write Enable Chip Enables Output Enable Burst address advance Address status signals Data Input and Output pins Parity Input and Output pins Match Output Match Output Enable Data Enable--Data input registers are updated only when DE is active. Power down control--Application of ZZ will result in a low standby power consumption. Flow Through or Pipeline mode Linear Order Burst mode Test Mode Select Test Data In Test Data Out Test Clock 3.3 V power supply Ground 2.5 V/3.3 V output power supply No Connect
Rev: 1.02 4/2005
4/20
(c) 2001, GSI Technology
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
GS84118AT/B-166/150/130/100
Functional Block Diagram
18 A0-A17
REGISTER
D
Q
A0 A1
A0 D0 D1 BINARY COUNTER Q0 Q1 A1 18 A
Load LBO ADV CLK ADSC ADSP Q
256K X 18
Memory Array
D
GW BWE BW1 Register D Q BW2 D D Q
Register Register Register
Register D Q
18 2
18
Q
Q
D
DE Register D Q
CE1 CE2 CE3 ZZ FT OE MOE A, DQ, Control Powerdown Control
Register D Q
Register D Q
18 54 Boundary Scan Registers Bypass Reg ID Reg. Instruction Reg. TDO DQ1-DQ16 DQP1-DQP2 Match
TDI
TMS TCK
TAP Controller
Rev: 1.02 4/2005
5/20
(c) 2001, GSI Technology
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
GS84118AT/B-166/150/130/100
Mode Pin Function
LBO
L H or NC
Function
Linear Burst Interleaved Burst
FT
L H or NC
Function
Flow Through Pipeline
Power Down Control
ZZ
L or NC H
Function
Active Standby, IDD = ISB
Note: There are pull up devices on LBO and FT pins and pull down device on ZZ pin, so those input pins can be unconnected and the chip will operate in the default states as specified in the above tables.
Linear Burst Sequence A[1:0] A[1:0] A[1:0] A[1:0]
1st address 2nd address 3rd address 4th address 00 01 10 11 01 10 11 00 10 11 00 01 11 00 01 10
Interleaved Burst Sequence A[1:0] A[1:0] A[1:0] A[1:0]
1st address 2nd address 3rd address 4th address 00 01 10 11 01 00 11 10 10 11 00 01 11 10 01 00
Byte Write Function Function
Read Read Write all bytes Write all bytes Write byte 1 Write byte 2
GW
H H L H H H
BWE
H L X L L L
BW1
X H X L L H
BW2
X H X L H L
Note: H = logic high, L = logic low, NC = no connect
Rev: 1.02 4/2005
6/20
(c) 2001, GSI Technology
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
GS84118AT/B-166/150/130/100
Synchronous Truth Table
Operation Deselect Cycle, Power Down Deselect Cycle, Power Down Deselect Cycle, Power Down Deselect Cycle, Power Down Deselect Cycle, Power Down Read Cycle, Begin Burst Read Cycle, Begin Burst Read Cycle, Begin Burst Read Cycle, Begin Burst Write Cycle, Begin Burst Read Cycle, Continue Burst Read Cycle, Continue Burst Read Cycle, Continue Burst Read Cycle, Continue Burst Write Cycle, Continue Burst Write Cycle, Continue Burst Read Cycle, Suspend Burst Read Cycle, Suspend Burst Read Cycle, Suspend Burst Read Cycle, Suspend Burst Write Cycle, Suspend Burst Write Cycle, Suspend Burst Address Used none none none none none external external external external external next next next next next next current current current current current current CE1 H L L L L L L L L L X X H H X H X X H H X H CE2 X L X L X H H H H H X X X X X X X X X X X X CE3 X X H X H L L L L L X X X X X X X X X X X X ADSP X L L H H L L H H H H H X X H X H H X X H X ADSC L X X L L X X L L L H H H H H H H H H H H H ADV X X X X X X X X X X L L L L L L H H H H H H Write X X X X X X X H H L H H H H L L H H H H L L OE CLK X X X X X L H L H X L H L H X X L H L H X X L-H L-H L-H L-H L-H L-H L-H L-H L-H L-H L-H L-H L-H L-H L-H L-H L-H L-H L-H L-H L-H L-H DQ High-Z High-Z High-Z High-Z High-Z Q High-Z Q High-Z D Q High-Z Q High-Z D D Q High-Z Q High-Z D D
Notes: 1. X means "don't care," H means "logic high," L means "logic low." 2. 3. 4. 5. 6. Write is the logic function of GW, BWE, BW1, BW2. See Byte Write Function table for detail. All inputs, except OE, must meet setup and hold on rising edge of CLK. Suspending busrt generates a wait cycle. ADSP LOW along with SRAM being selected always initiates a Read cycle at the L-H edge of the clock (CLK). A Write cycle can only be performed by setting Write low for the clock L-H edge of the subsequent wait cycle. Refer to page 12 for the Write timing diagram.
Rev: 1.02 4/2005
7/20
(c) 2001, GSI Technology
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
GS84118AT/B-166/150/130/100
Truth Table For Read/Write/Compare/Fill Write Operation CE
Read Write Compare Fill Write Match Deselect Deselect L L L L H H
Write
H L H L X X
DE
X L L H X X
MOE
X X L X L H
OE
L H H X X X
Match
-- -- Data Out -- High High Z
DQ
Q D D X High Z High Z
Notes: 1. X means "don't care," H means "logic high," L means "logic low." 2. Write is the logic function of GW, BWE, BW1, BW2. See Byte Write Function table for detail. 3. CE is defined as CE1=L, CE2=H and CE3=L 4. All signals are synchronous and are sampled by CLK except OE and MOE. OE and MOE are asynchronous and drive the bus immediately.
Absolute Maximum Ratings (Voltage reference to VSS = 0 V) Symbol
VDD VDDQ VCLK Vin Vout Iout PD TOPR TSTG
Description
Supply Voltage Output Supply Voltage CLK Input Voltage Input Voltage Output Voltage Output Current per I/O Power Dissipation Operating Temperature Storage Temperature
Commerical
-0.5 to 4.6 -0.5 to VDD -0.5 to 6 -0.5 to VDD + 0.5 ( 4.6 V max. ) -0.5 to VDD + 0.5 ( 4.6 V max. ) +/-20 1.5 0 to 70 -55 to 125
Unit
V V V V V mA W
o
C
oC
Note: Permanent damage to the device may occur if the Absolute Maximun Ratings are exceeded. Functional operation should be restricted to the recommended operation conditions. Exposure to higher than recommended voltages, for an extended period of time, could effect the performance and reliability of this component.
Rev: 1.02 4/2005
8/20
(c) 2001, GSI Technology
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
GS84118AT/B-166/150/130/100
Package Thermal Characteristics Rating
Junction to Ambient (at 200 lfm) Junction to Ambient (at 200 lfm) Junction to Case (TOP)
Notes:
Layer Board
single four --
Symbol
RJA RJA RJC
TQFP max
32 20 7
PBGA max
28 18 4
Unit
C/W C/W C/W
Notes
1,2 1,2 3
1. 2. 3.
Junction temperature is a function of SRAM power dissapation, package thermal resistance, mounting board temperature, ambient. Temperature air flow, board density, and PCB thermal resistance. SCMI G-38-87. Average thermal resistance between die and top surface, MIL SPEC-883, Method 1012.1.
AC Test Conditions
(VDD = 3.135 V-3.6 V, Ta = 0-70C)
Output load 1 DQ
Parameter
Input high level Input low level Input slew rate Input reference level Output reference level Output load Notes: 1. 2. 3. 4. Include scope and jig capacitance.
Conditions
VIH = 2.3 V VIL = 0.2 V TR = 1 V/ns 1.25 V 1.25 V Fig. 1& 2 DQ 5pF1 FIG. 2 Output load 2 FIG. 1
50W VT = 1.25 V
30pF1
2.5 V 225W 225W
Test conditions as specified with output loading as shown in Fig. 1 unless otherwise noted. Output load 2 for tLZ, tHZ, tOLZ and tOHZ. Device is deselected as defined by the Truth Table.
Rev: 1.02 4/2005
9/20
(c) 2001, GSI Technology
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
GS84118AT/B-166/150/130/100
DC Characteristics and Supply Currents (Voltage reference to VSS = 0 V)
(VDD = 3.135 V-3.6 V, Ta = 0-70C for Commercial Temperature Offering)
Parameter
Input Leakage Current (except ZZ, FT, LBO pins) ZZ Input Current Mode Input Current (FT & LBO pins) Output Leakage Current Output High Voltage Output High Voltage Output Low Voltage
Symbol
IIL IinZZ IinM Iol VOH VOH VOL
Test Conditions
VIN = 0 to VDD VDD VIN VIH 0 V VIN VIH VDD VIN VIL 0 V VIN VIL Output Disable, VOUT = 0 to VDD IOH = -4 mA, VDDQ = 2.375 V IOH = -4 mA, VDDQ = 3.135 V IOL = +4 mA
Min
-1 uA -1 uA -1 uA -30 0uA -1 uA -1 uA 1.7 V 2.4 V
Max
1 uA 1 uA 300 uA 1 uA 1 uA 1 uA
0.4 V
Rev: 1.02 4/2005
10/20
(c) 2001, GSI Technology
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
GS84118AT/B-166/150/130/100
Operating Currents
-166 Parameter Test Conditions Symbol 0 to 70C 310 190 30 30 110 80 -40 to +85C 320 200 40 40 120 90 -150 0 to 70C 275 190 30 30 105 80 -40 to +85C 285 200 40 40 115 90 -133 0 to 70C 250 140 30 30 100 65 -40 to +85C 260 150 40 40 110 75 -100 0 to 70C 190 140 30 30 80 65 -40 Unit to +85C 200 150 40 40 90 75 mA mA mA mA mA mA
Operating Current
Device Selected; All other inputs VIH Or VIL Output open
IDD Pipeline IDD Flow Through ISB Pipeline ISB Flow Through IDD Pipeline IDD Flow Through
Standby Current
ZZ VDD - 0.2 V
Deselect Supply Current
Device Deselected; All other inputs VIH OR VIL
Rev: 1.02 4/2005
11/20
(c) 2001, GSI Technology
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
GS84118AT/B-166/150/130/100
AC Electrical Characteristics
Parameter Clock Cycle Time Clock to Output Valid Clock to Output Invalid Pipeline Clock to Output in Low-Z Clock to Match Valid Clock to Match Invalid Clock to Match in Low-Z Clock Cycle Time Clock to Output Valid Clock to Output Invalid Flow Through Clock to Output in Low-Z Clock to Match Valid Clock to Match Invalid Clock to Match in Low-Z Clock HIGH Time Clock LOW Time Clock to Output in High-Z OE to Output Valid OE to output in Low-Z OE to output in High-Z MOE to Match Valid MOE to Match in Low-Z MOE to Match in High-Z Setup time Hold time ZZ setup time ZZ hold time ZZ recovery Symbol tKC tKQ tKQX tLZ1 tKM tKMX tMLZ tKC tKQ tKQX tLZ1 tKM tKMX tMLZ1 tKH tKL tHZ1 tOE tOLZ1 tOHZ1 tMOE tMOLZ tS tH tZZS2 tZZH2 tZZR
1 1
-166 Min 6.0 -- 1.5 1.5 -- 1.5 1.5 10.0 -- 3.0 3.0 -- 3.0 3.0 1.3 1.5 1.5 -- 0 -- -- 0 -- 1.5 0.5 5 1 20 Max -- 3.5 -- -- 3.5 -- -- -- 8.5 -- -- 8.5 -- -- -- -- 3.5 3.5 -- 3.5 3.5 -- 3.5 -- -- -- -- -- 6.7 -- 1.5 1.5 -- 1.5 1.5
-150 Min Max -- 3.8 -- -- 3.8 -- -- -- 10.0 -- -- 10.0 -- -- -- -- 3.8 3.8 -- 3.8 3.8 -- 3.8 -- -- -- -- -- 7.5 -- 1.5 1.5 -- 1.5 1.5
-133 Min Max -- 4 -- -- 4 -- -- -- 11.0 -- -- 11.0 -- -- -- -- 4 4 -- 4 4 -- 4 -- -- -- -- -- 10 -- 1.5 1.5 -- 1.5 1.5
-100 Min Max -- 4.5 -- -- 4.5 -- -- -- 12.0 -- -- 12.0 -- -- -- -- 5 5 -- 5 5 -- 5 -- -- -- -- --
Unit ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns
10.0 -- 3.0 3.0 -- 3.0 3.0 1.5 1.7 1.5 -- 0 -- -- 0 -- 1.5 0.5 5 1 20
15.0 -- 3.0 3.0 -- 3.0 3.0 1.7 1.9 1.5 -- 0 -- -- 0 -- 2.0 0.5 5 1 20
15.0 -- 3.0 3.0 -- 3.0 3.0 2 2.2 1.5 -- 0 -- -- 0 -- 2.0 0.5 5 1 20
tMOHZ1
Notes: 1. These parameters are sampled and are not 100% tested 2. ZZ is an asynchronous signal. However, in order to be recognized on any given clock cycle, ZZ must meet the specified setup and hold times as specified above.
Rev: 1.02 4/2005
12/20
(c) 2001, GSI Technology
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
GS84118AT/B-166/150/130/100
Pipeline Mode Timing
Begin
Read A
Cont
Cont
Deselect Write B Single Write tKL tKH tKC
Read C
Read C+1 Read C+2 Read C+3 Cont Burst Read
Deselect
Single Read
CK ADSP tS tH ADSC tS ADV tS tH A0-An
A B C ADSC initiated read
tH
tS GW tS BW tH tS Ba-Bd tS tH E1 tS tH E2 tS tH E3 G tS tOE DQa-DQd tOHZ
Q(A) D(B) E2 and E3 only sampled with ADSP and ADSC E1 masks ADSP Deselected with E1
tH
tKQ tH tLZ
Q(C) Q(C+1) Q(C+2)
tKQX tHZ
Q(C+3)
Rev: 1.02 4/2005
13/20
(c) 2001, GSI Technology
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
GS84118AT/B-166/150/130/100
Flow Through Mode Timing
Begin
Read A
Cont tKL tKH
Cont tKC
Write B
Read C
Read C+1 Read C+2 Read C+3 Read C
Cont
Deselect
CK ADSP tS tH ADSC tS tH ADV tS tH A0-An
A B C Fixed High
tS tH ADSC initiated read
tS tH GW tS tH BW tS tH Ba-Bd tS tH E1 tS tH E2 tS tH E3 G tH tS tOE DQa-DQd
Q(A) Deselected with E1
E2 and E3 only sampled with ADSC
tOHZ
D(B)
tKQ tLZ
Q(C) Q(C+1) Q(C+2) Q(C+3) Q(C)
tHZ tKQX
Rev: 1.02 4/2005
14/20
(c) 2001, GSI Technology
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
GS84118AT/B-166/150/130/100
Pipeline Compare Fill Write Cycle
Hit
Miss
Fill Write
K tH tS Address A tH tS DQ A tH tS CE tH tS W G tH tS DE MOE tKM tMOE tMLZ Match A B B
tKM tKMX
tKM
Rev: 1.02 4/2005
15/20
(c) 2001, GSI Technology
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
GS84118AT/B-166/150/130/100
Flow Through Compare Fill Write Cycle
Hit
Miss
Fill Write
K tH tS Address A tH tS DQ A tH tS CE tH tS W G tH tS DE MOE tKM tMOE tMLZ Match A B B
tKM tKMX
tKM
Rev: 1.02 4/2005
16/20
(c) 2001, GSI Technology
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
GS84118AT/B-166/150/130/100
TQFP Package Drawing (Package T) Symbol
A1 A2 b c D D1 E E1 e L L1 Y
Description
Standoff Body Thickness Lead Width Lead Thickness Terminal Dimension Package Body Terminal Dimension Package Body Lead Pitch Foot Length Lead Length Coplanarity Lead Angle
Min. Nom. Max
0.05 1.35 0.20 0.09 21.9 19.9 15.9 13.9 -- 0.45 -- 0 0.10 1.40 0.30 -- 22.0 20.0 16.0 14.0 0.65 0.60 1.00 -- 0.15 1.45 0.40 0.20 22.1 20.1 16.1 14.1 -- 0.75 -- 0.10 7
L L1
c Pin 1
e b
D D1
A1
Y
A2
E1 E
Notes: 1. All dimensions are in millimeters (mm). 2. Package width and length do not include mold protrusion.
Rev: 1.02 4/2005
17/20
(c) 2001, GSI Technology
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
GS84118AT/B-166/150/130/100
Package Dimensions--119-Bump FPBGA (Package B, Variation 2)
A1 1
A B C D E F G H J K L M N P R T U
TOP VIEW
BOTTOM VIEW A1 O0.10S C O0.30S C AS B S O0.60~0.90 (119x)
2
3
4
5
6
7
7 6 5 43 2 1
A B C D E F G H J K L M N P R T U
220.10
B 0.700.05 0.15 C 1.27 7.62 0.15 C A 0.20(4x) 140.10
0.560.05
Rev: 1.02 4/2005
0.50~0.70 1.86.0.13
C
SEATING PLANE
18/20
20.32
1.27
(c) 2001, GSI Technology
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
GS84118AT/B-166/150/130/100
Ordering Information Org
256K x 18 256K x 18 256K x 18 256K x 18 256K x 18 256K x 18 256K x 18 256K x 18 256K x 18 256K x 18 256K x 18 256K x 18 256K x 18 256K x 18 256K x 18 256K x 18 256K x 18 256K x 18 256K x 18 256K x 18 256K x 18 256K x 18 256K x 18
Part Number1
GS84118AT-166 GS84118AT-150 GS84118AT-133 GS84118AT-100 GS84118AT-166I GS84118AT-150I GS84118AT-133I GS84118AT-100I GS84118AGT-166 GS84118AGT-150 GS84118AGT-133 GS84118AGT-100 GS84118AGT-166I GS84118AGT-150I GS84118AGT-133I GS84118AGT-100I GS84118AB-166 GS84118AB-150 GS84118AB-133 GS84118AB-100 GS84118AB-166I GS84118AB-150I GS84118AI-133I
Type
Pipeline/Flow Through Pipeline/Flow Through Pipeline/Flow Through Pipeline/Flow Through Pipeline/Flow Through Pipeline/Flow Through Pipeline/Flow Through Pipeline/Flow Through Pipeline/Flow Through Pipeline/Flow Through Pipeline/Flow Through Pipeline/Flow Through Pipeline/Flow Through Pipeline/Flow Through Pipeline/Flow Through Pipeline/Flow Through Pipeline/Flow Through Pipeline/Flow Through Pipeline/Flow Through Pipeline/Flow Through Pipeline/Flow Through Pipeline/Flow Through Pipeline/Flow Through
Package
TQFP TQFP TQFP TQFP TQFP TQFP TQFP TQFP Pb-Free TQFP Pb-Free TQFP Pb-Free TQFP Pb-Free TQFP Pb-Free TQFP Pb-Free TQFP Pb-Free TQFP Pb-Free TQFP 119 BGA (var. 2) 119 BGA (var. 2) 119 BGA (var. 2) 119 BGA (var. 2) 119 BGA (var. 2) 119 BGA (var. 2) 119 BGA (var. 2)
Speed2 (MHz/ns)
166/8.5 150/10 133/11 100/12 166/8.5 150/10 133/11 100/12 166/8.5 150/10 133/11 100/12 166/8.5 150/10 133/11 100/12 166/8.5 150/10 133/11 100/12 166/8.5 150/10 133/11
TA
3
Status
C C C C I I I I C C C C I I I I C C C C I I I
256K x 18 GS84118AB-100I Pipeline/Flow Through 119 BGA (var. 2) 100/12 I Notes: 1. Customers requiring delivery in Tape and Reel should add the character "T" to the end of the part number. Example: GS84032T-7.5T. 2. The speed column indicates the cycle frequency (Mhz) of the device in Pipelined mode and the latency (ns) in Flow Through mode. Each device is Pipeline / Flow through mode selectable by the user. 3. TA = C = Commercial Temperature Range. TA = I = Industrial Temperature Range. 4. GSI offers other versions this type of device in many different configurations and with a variety of different features, only some of which are covered in this data sheet. See the GSI Technology web site for a complete listing of current offerings.
Rev: 1.02 4/2005
19/20
(c) 2001, GSI Technology
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
GS84118AT/B-166/150/130/100
4Mb Synchronous Tag RAM Datasheet Revision History Rev. Code: Old;New
84118A_r1 84118A_r1; 84118_r1_01 Format/Content
Types of Changes Page /Revisions;Reason Format or Content
* Creation of new datasheet * Updated format * Updated mechanical drawings * Updated timing diagrams * Added Pb-free info for TQFP * Added Pipeline Compare Fill Write Cycle and Flow Through Compare Fill Write Cycle timing diagrams
84118A_r1_01; 84118_r1_02
Content
Rev: 1.02 4/2005
20/20
(c) 2001, GSI Technology
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.

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