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  ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| |||||||||||||||||| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| ||||||||||||||||||||||||||| ||||||||||||||||||||| 2 0 1 5 - 1 1 - 0 0 0 1 pt0 568 - 1 1 2 / 1 1 /1 5 1 pi4 gtl2014 preliminary datasheet 4 - bit lvttl to gtl transceiver features ? operates as a 4 - bit gtl ? /gtl/gtl+ sampling receiver or as a lvttl to gtl ? /gtl/gtl+ driver ? 2.3 v to 3.6 v operation with 5 v tolerant lvttl input ? gtl input and output 3.6 v tolerant ? vref adjustable from 0.5 v to vcc/2 ? partial power - down permi tted ? esd protection exceeds 2000 v hbm per jesd22 - a114 and 1000 v cdm per jesd22 - cc101 ? latch - up protection exceeds 500 ma per jesd78 ? package offered: tssop14 description the pi4gtl2014 is a 4 - bit translating transceiver designed for 3.3 v lvttl sys tem interface with a gtl ? /gtl/gtl+ bus, where gtl ? /gtl/gtl+ refers to the reference voltage of the gtl bus and the input/output voltage thresholds associated with it. the direction pin allows the part to function as either a gtl to lvttl sampling recei ver or as a lvttl to gtl interface. the pi4gtl2014 lvttl inputs (only) are tolerant up to 5.5 v allowing direct access to ttl or 5 v cmos inputs. the lvttl outputs are not 5.5 v tolerant. the pi4gtl2014 gtl inputs and outputs operate up to 3.6 v, allowing the device to be used in higher voltage open - drain output applications. dir 1 direction control input (lvttl) b0 2 data inputs/outputs (gtl) b1 3 b2 5 b3 6 a0 13 data inputs/outputs (lvttl) a1 12 a2 10 a3 9 vref 4 gtl reference voltage gnd 7,8,11 ground (0 v) vcc 14 positive supply voltage pin configuration pin description
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| |||||||||||||||||| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| ||||||||||||||||||||||||||| ||||||||||||||||||||| 2 0 1 5 - 1 1 - 0 0 0 1 pt0 568 - 1 1 2 / 1 1 /1 5 2 pi4 gtl2014 preliminary datasheet 4 - bit lvttl to gtl transceiver maximum ratings power supply ................................ ................................ ................................ ...... - 0. 5 v to +4.6v voltage on an i/o pin ................................ ................................ ........... gnd - 0.5v to + 7 .0v supply current ................................ ................................ ................................ ............... 160 ma ground supply current ................................ ................................ ................................ ... 4 00ma total power dissipation ................................ ................................ ................................ 200mw operation t emperature ................................ ................................ ............................... - 40~85 storage temperature ................................ ................................ ................................ - 65~150 maximum junction temperature ,t j(max) ................................ ................................ 125 total power dissipation ................................ ................................ ............................... 200mw pi4gtl2014 block diagram dir a (lvttl) b (gtl) h input output l output input note: stresses greater than those listed under maximum ratings may cause permanent damage to the device. this is a stress rating only and functional op eration of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. exposure to absolute maximum rating conditions for extended periods may affect reliability. figure 1 : block diagram function table: h = high voltage level; l = low voltage level.
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| |||||||||||||||||| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| ||||||||||||||||||||||||||| ||||||||||||||||||||| 2 0 1 5 - 1 1 - 0 0 0 1 pt0 568 - 1 1 2 / 1 1 /1 5 3 pi4 gtl2014 preliminary datasheet 4 - bit lvttl to gtl transceiver l i miting v a lues symbol p arameter conditions min max unit vcc supply voltage ? ik input clamping current vi <0v - ? i input voltage a port ? [1] 7 v b port ? [1] 4.6 v i ok output clamping current a port; vo <0v - ? o output voltage o utput in off or high state a port ? [1] 7 v b port ? [1] 4.6 v i ol low - level output current current into any output in the low state a port - 32 ma b port - 80 ma i oh high - level output current current into any output i n the high state; a port - ? [2] ?60
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| |||||||||||||||||||||| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| ||||||||||||||||||||||||||||||||||||||||||||||||||||||| 2 0 1 5 - 1 1 - 0 0 0 1 pt0 568 - 1 1 2 / 1 1 /1 5 4 pi4 gtl2014 preliminary datasheet 4 - bit lvttl to gtl transceiver operating conditions [1] symbol parameter conditions min typ max unit vcc supply voltage 2.3 - 3.6 v lowest voltage 0.71 0.75 0.79 v v tt termination voltage [2] gtl? reference voltage overall 0.43 2?3v tt vcc/2 v lowest voltage 0.43 0.5 0.55 gtl ? input voltage b port 0 v tt 3.6 v except b port 0 3.3 5.5 [3] v vih high - level input voltage b port vref + 0.050 - - v except b port vcc=3.3v 2 - - v except b port vcc=2.5v 1 .7 v vil low - level input voltage b port - - vref - 0.050 v except b port vcc=3.3v - - 0.8 v except b port vcc=2.5v 0.7 v ioh high - level output current a port vcc=3.3v - - ? low - level output current b port - - 40 ma a port vcc=3.3v - - 16 ma a port vcc=2.5v - - 12 ma tamb ambient temperature operating in free - air ? tt maximum of 3.6 v with resi stor sized so iol maximum is not exceeded. [3] a0, a1, a2, a3 vi(max) is 3.6 v if configured as outputs (dir = l).
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| |||||||||||||||||||||| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| ||||||||||||||||||||||||||||||||||||||||||||||||||||||| 2 0 1 5 - 1 1 - 0 0 0 1 pt0 568 - 1 1 2 / 1 1 /1 5 5 pi4 gtl2014 preliminary datasheet 4 - bit lvttl to gtl transceiver s t atic char a c teristics r e c o mm e nde d o perati n g c o nd i ti o ns ; vo l t a g e s are ref e renced to g n d ( g r o und = 0 v). t a m b = ? 4 0 c t o + 8 5 c symbol p arameter conditions min typ [1] max unit v oh high - level output voltage a port; vcc = 2.3 v to 3.6 v; ioh = ?100 a [2] vcc ? 0.2 ioh = ?16 ma [2] 2.0 v a port; vcc = 2.3 v; ioh = ? [2] 1.7 v v ol low - level output voltage b port; vcc = 3.0 v; i ol = 40 ma [2] 0.23 0.4 v b port; vcc = 2.3v; i ol = 40 ma [2] 0.26 0.4 v a port; vcc = 3.0 v; i ol =8 ma [2] 0.28 0.4 v a port; vcc = 3.0 v; i ol =12ma [2] 0.4 0.55 v a port; vcc = 3.0 v; i ol =16 ma [2] 0.55 0.8 v a port; vcc = 2.3v; i ol =8 ma [2] 0.3 0.45 v a port; vcc = 2.3v; i ol =12 ma [2] 0.47 0.7 v i i input current control inputs; vcc = 3.6 v; v i = vcc or gnd 1 ua b port; vcc = 3.6 v; v i = v tt or gnd 1 ua a port; vcc = 0 v o r 3.6 v; v i = 5.5 v 10 ua a port; vcc = 3.6 v; v i = vcc 1 ua a port; vcc = 3.6 v; v i = 0 v - 5 ua i oz off - state output current a port; vcc =0 v; v i or v o = 0 v to 3.6 v 100 ua i cc quiescent supply current a port; vcc = 3.6 v; v i = vcc or gnd; io =0 ma 4 10 ma b port; vcc = 3.6 v; v i = v tt or gnd; io =0 ma 4 10 ma icc [3] additional quiescent current (per input) 500 ua ci input capacitance control inputs; v i = 3.0 v or 0v 2 pf cio input/output capacitance a port; v o = 3.0v or 0 v 4.6 pf b port; v o = v t t o r 0 v 3.4 pf
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| |||||||||||||||||||||| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| ||||||||||||||||||||||||||||||||||||||||||||||||||||||| 2 0 1 5 - 1 1 - 0 0 0 1 pt0 568 - 1 1 2 / 1 1 /1 5 6 pi4 gtl2014 preliminary datasheet 4 - bit lvttl to gtl transceiver note: [1] all typical values are measured at vcc = 3.3 v and tamb = 25 c. [2] the input and output voltage ratings may be exceeded if the input and output current ratings are observed. [3] this is the increase in supply current for each input that is at the specified ttl volta ge level rather than vcc or gnd. dynamic char a c teristics all typical values are at vcc = 3.3 v and tamb = 25 c. symbol parameter conditions min typ [1] max unit gtl ? ; vref = 0.5v; vtt = 0.75 v plh low to high propagation delay an to bn 2. 1 5 ns t phl high to low propagation delay an to bn 4.1 7 ns t plh low to high propagation delay bn to an 6 9 ns t phl high to low propagation delay bn to an 4.8 8 ns gtl ? ; vref = 0.6 v; vtt = 0.9 v plh low to high propagation delay an to bn 2.0 5 ns t phl high to low propagation delay an to bn 4.2 7 ns t plh low to high propagation delay bn to an 6 9 ns t phl high to low propagation delay bn to an 4.8 8 ns gtl ? ; vref = 0.8 v; vtt = 1.2 v plh low to high propagation delay an to bn 2.0 5 ns t phl high to low propagation delay an to bn 4.9 8 ns t plh low to high propagation delay bn to an 6 9 ns t phl high to low propag ation delay bn to an 4.7 8 ns gtl+; vref = 1.0 v; vtt = 1.5 v t plh low to high propagation delay an to bn 2.0 5 ns t phl high to low propagation delay an to bn 5.1 8 ns t plh low to high propagation delay bn to an 6.1 9 ns t phl high t o low propagation delay bn to an 4.5 7 ns
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| |||||||||||||||||||||| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| ||||||||||||||||||||||||||||||||||||||||||||||||||||||| 2 0 1 5 - 1 1 - 0 0 0 1 pt0 568 - 1 1 2 / 1 1 /1 5 7 pi4 gtl2014 preliminary datasheet 4 - bit lvttl to gtl transceiver dynamic char a c teristics all typical values are at vcc = 2.5 v and tamb = 25 c. symbol parameter conditions min typ [1] max unit gtl ? ; vref = 0.5v; vtt = 0.75 v plh low to high propagation delay an to bn 2.3 5 ns t phl high to low propagation delay an to bn 6.5 10 ns t plh low to high propagation delay bn to an 7.5 12 ns t phl high to low propagation delay bn to an 5.8 9 ns gtl ? ; vref = 0.6 v; vtt = 0.9 v plh low to high propa gation delay an to bn 2.3 5 ns t phl high to low propagation delay an to bn 5.7 10 ns t plh low to high propagation delay bn to an 7.5 12 ns t phl high to low propagation delay bn to an 5.6 9 ns gtl ? ; vref = 0.8 v; vtt = 1.2 v plh l ow to high propagation delay an to bn 2.3 5 ns t phl high to low propagation delay an to bn 7.5 12 ns t plh low to high propagation delay bn to an 7.5 12 ns t phl high to low propagation delay bn to an 5.6 9 ns gtl+; vref = 1.0 v; vtt = 1.5 v t plh low to high propagation delay an to bn 2.3 5 ns t phl high to low propagation delay an to bn 8.6 1 2 ns t plh low to high propagation delay bn to an 8.8 1 2 ns t phl high to low propagation delay bn to an 5.6 9 ns
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| |||||||||||||||||||||| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| ||||||||||||||||||||||||||||||||||||||||||||||||||||||| 2 0 1 5 - 1 1 - 0 0 0 1 pt0 568 - 1 1 2 / 1 1 /1 5 8 pi4 gtl2014 preliminary datasheet 4 - bit lvttl to gtl transceiver waveforms vm = 1.5 v at vcc 3.0 v; vm = vcc/2 at vcc 2.7 v for a ports and control pins; vm = vref for b ports. fig 2 . voltage waveforms fig 3 . propagation delay, bn to an
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| |||||||||||||||||||||| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| ||||||||||||||||||||||||||||||||||||||||||||||||||||||| 2 0 1 5 - 1 1 - 0 0 0 1 pt0 568 - 1 1 2 / 1 1 /1 5 9 pi4 gtl2014 preliminary datasheet 4 - bit lvttl to gtl transceiver fig 4 . load circuitry for switching times fig 5 . load circui t for b outputs rl load resistor cl load capacitance; includes jig and probe capacitance rt termination resistance; should be equal to output impedance of pulse generators.
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| |||||||||||||||||||||| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| ||||||||||||||||||||||||||||||||||||||||||||||||||||||| 2 0 1 5 - 1 1 - 0 0 0 1 pt0 568 - 1 1 2 / 1 1 /1 5 10 pi4 gtl2014 preliminary datasheet 4 - bit lvttl to gtl transceiver mechanical information tssop - 14 ( l ) ordering information part no. packag e code package pi4 gtl2014 l e l 14 - pin,173 mil wide tssop pi4 gtl2014 l e x l 14 - pin,173 mil wide tssop, ta pe & reel note: ? e = pb - free and green ? adding x suffix = tape /r eel pericom semiconductor corporation ? 1 - 800 - 435 - 2336 ? www.pericom.com pericom reserves the right to make changes to its products or specifications at any time, without notice, in order to improve design or performance and to supply the best possible product. pericom does not assume any responsibility for use of any circuitry described other than the circuitry embodied in pericom product. the company makes no representations that circuitry described herein is free from patent infringement or other rights, of pericom.


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