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gs72108atp/j 256k x 8 2mb asynchronous sram 7, 8, 10, 12 ns 3.3 v v dd center v dd and v ss soj, tsop commercial temp industrial temp rev: 1.07 10/2007 1/13 ? 2001, gsi technology specifications cited are subject to change without notice . for latest documentation see http://www.gsitechnology.com. features ? fast access time: 7, 8, 10, 12 ns ? cmos low power operation: 135/115/95/80 ma at minimum cycle time ? single 3.3 v power supply ? all inputs and outputs are ttl-compatible ? fully static operation ? industrial temperature option: ?40 to 85c ? package line up j: 400 mil, 36-pin soj package gj :rohs-compliant 400 mil, 36-pin soj package tp: 400 mil, 44-pin tsop type ii package gp:rohs-compliant 400 mil, 44-pin tsop type ii package description the gs72108a is a high speed cmos static ram organized as 262,144 words by 8 bits. static design eliminates the need for external clocks or timing strobes. the gs operates on a single 3.3 v power supply and all inputs and outputs are ttl- compatible. the gs72108a is available in 400 mil soj and 400 mil tsop type-ii packages. soj 256k x 8-pin configuration package j pin descriptions symbol description a 0 ? a 17 address input dq 1 ? dq 8 data input/output ce chip enable input we write enable input oe output enable input v dd +3.3 v power supply v ss ground nc no connect 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 a 4 a 3 a 2 a 1 a 0 ce dq 1 dq 2 v dd v ss dq 3 dq 4 we a 17 a 16 a 15 nc a 5 a 6 a 7 a 8 oe dq 8 dq 7 v ss v dd dq 6 dq 5 a 9 a 10 a 11 a 12 36-pin 400 mil soj 17 18 a 14 a 13 20 19 nc nc
gs72108atp/j specifications cited are subject to change without notice . for latest documentation see http://www.gsitechnology.com. rev: 1.07 10/2007 2/13 ? 2001, gsi technology tsop-ii 256k x 8- pin configuration package tp block diagram 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 a 4 a 3 a 2 a 1 a 0 ce dq 1 dq 2 v dd v ss dq 3 dq 4 we nc a 5 a 6 a 7 a 8 oe dq 8 dq 7 v ss v dd dq 6 dq 5 a 10 a 11 a 12 nc 44-pin 400 mil tsop ii 19 20 26 25 nc 21 22 nc nc 24 23 nc nc 1 2 nc nc 44 43 nc nc a 9 a 13 a 17 a 16 a 15 a 14 memory array row decoder column decoder address input buffer control i/o buffer a 0 ce we oe dq 1 a 17 dq 8
gs72108atp/j specifications cited are subject to change without notice . for latest documentation see http://www.gsitechnology.com. rev: 1.07 10/2007 3/13 ? 2001, gsi technology note: x: ?h? or ?l? note: permanent device damage may occur if absolute maximum ratings ar e exceeded. functional operation shall be restricted to recomme nded operating conditions. exposure to higher than recommended voltages for extended peri ods of time could affect device reliability . truth table ce oe we dq 1 to dq 8 v dd current h x x not selected isb 1 , isb 2 l l h read i dd l x l write l h h high z absolute maximum ratings parameter symbol rating unit supply voltage v dd ? 0.5 to +4.6 v input voltage v in ? 0.5 to v dd +0.5 ( 4.6 v max.) v output voltage v out ? 0.5 to v dd +0.5 ( 4.6 v max.) v allowable power dissipation pd 0.7 w storage temperature t stg ? 55 to 150 o c
gs72108atp/j specifications cited are subject to change without notice . for latest documentation see http://www.gsitechnology.com. rev: 1.07 10/2007 4/13 ? 2001, gsi technology notes: 1. input overshoot voltage should be less than v dd +2 v and not exceed 20 ns. 2. input undershoot voltage should be greater than ?2 v and not exceed 20 ns. notes: 1. tested at t a = 25c, f = 1 mhz 2. these parameters are sampled and are not 100% tested. recommended oper ating conditions parameter symbol min typ max unit supply voltage for -7/-8/-10/-12 v dd 3.0 3.3 3.6 v input high voltage v ih 2.0 ? v dd +0.3 v input low voltage v il ? 0.3 ? 0.8 v ambient temperature, commercial range t ac 0 ? 70 o c ambient temperature, industrial range t a i ? 40 ? 85 o c capacitance parameter symbol test condition max unit input capacitance c in v in = 0 v 5 pf output capacitance c out v out = 0 v 7 pf dc i/o pin characteristics parameter symbol test conditions min max input leakage current i il v in = 0 to v dd ? 1 ua 1 ua output leakage current i lo output high z v out = 0 to v dd ? 1 ua 1 ua output high voltage v oh i oh = ?4ma 2.4 ? output low voltage v ol i lo = +4ma ? 0.4 v
gs72108atp/j specifications cited are subject to change without notice . for latest documentation see http://www.gsitechnology.com. rev: 1.07 10/2007 5/13 ? 2001, gsi technology ac test conditions power supply currents parameter symbol test conditions 0 to 70c ? 40 to 85c 7 ns 8 ns 10 ns 12 ns 7 ns 8 ns 10 ns 12 ns operating supply current i dd (max) ce v il all other inputs v ih or v il min. cycle time i out = 0 ma 135 ma 115 ma 95 ma 80 ma 140 ma 120 ma 100 ma 85 ma standby current i sb1 (max) ce v ih all other inputs v ih or v il min. cycle time 25 ma 20 ma 20 ma 15 ma 30 ma 25 ma 25 ma 20 ma standby current i sb2 (max) ce v dd - 0.2 v all other inputs v dd ? 0.2 v or 0.2 v 5 ma 10 ma dq vt = 1.4 v 50 30pf 1 dq 3.3 v output load 1 output load 2 589 434 5pf 1 notes: 1. include scope and jig capacitance. 2. test conditions as specified with output loading as shown in fig. 1 unless otherwise noted. 3. output load 2 for t lz , t hz , t olz and t ohz parameter conditions input high level v ih = 2.4 v input low level v il = 0.4 v input rise time tr = 1 v/ns input fall time tf = 1 v/ns input reference level 1.4 v output reference level 1.4 v output load fig. 1& 2
gs72108atp/j specifications cited are subject to change without notice . for latest documentation see http://www.gsitechnology.com. rev: 1.07 10/2007 6/13 ? 2001, gsi technology ac characteristics * these parameters are sampled and are not 100% tested. read cycle 1: ce = oe = v il , we = v ih read cycle parameter symbol -7 -8 -10 -12 unit min max min max min max min max read cycle time t rc 7 ? 8 ? 10 ? 12 ? ns address access time t aa ? 7 ? 8 ? 10 ? 12 ns chip enable access time ( ce ) t ac ? 7 ? 8 ? 10 ? 12 ns byte enable access time ( ub , lb ) t ab ? 3 ? 3.5 ? 4 ? 5 ns output enable to output valid ( oe ) t oe ? 3 ? 3.5 ? 4 ? 5 ns output hold from address change t oh 3 ? 3 ? 3 ? 3 ? ns chip enable to output in low z ( ce ) t lz * 3 ? 3 ? 3 ? 3 ? ns output enable to output in low z ( oe ) t olz * 0 ? 0 ? 0 ? 0 ? ns byte enable to output in low z ( ub , lb ) t blz * 0 ? 0 ? 0 ? 0 ? ns chip disable to output in high z ( ce ) t hz * ? 3.5 ? 4 ? 5 ? 6 ns output disable to output in high z ( oe ) t ohz * ? 3 ? 3.5 ? 4 ? 5 ns t aa t oh t rc address data out previous data data valid
gs72108atp/j specifications cited are subject to change without notice . for latest documentation see http://www.gsitechnology.com. rev: 1.07 10/2007 7/13 ? 2001, gsi technology read cycle 2: we = v ih * these parameters are sampled and are not 100% tested. write cycle parameter symbol -7 -8 -10 -12 unit min max min max min max min max write cycle time twc 7 ? 8 ? 10 ? 12 ? ns address valid to end of write taw 5 ? 5.5 ? 7 ? 8 ? ns chip enable to end of write tcw 5 ? 5.5 ? 7 ? 8 ? ns data set up time tdw 3.5 ? 4 ? 5 ? 6 ? ns data hold time tdh 0 ? 0 ? 0 ? 0 ? ns write pulse width twp 5 ? 5.5 ? 7 ? 8 ? ns address set up time tas 0 ? 0 ? 0 ? 0 ? ns write recovery time ( we ) twr 0 ? 0 ? 0 ? 0 ? ns write recovery time ( ce ) twr1 0 ? 0 ? 0 ? 0 ? ns output low z from end of write twlz * 3 ? 3 ? 3 ? 3 ? ns write to output in high z twhz * ? 3 ? 3.5 ? 4 ? 5 ns t aa t rc address t ac t lz t oe t olz ce oe data out t hz t ohz d ata valid high impedance
gs72108atp/j specifications cited are subject to change without notice . for latest documentation see http://www.gsitechnology.com. rev: 1.07 10/2007 8/13 ? 2001, gsi technology write cycle 1: we control write cycle 2: ce control t wc address ce we data in oe data out t aw t cw t as t wp t wr t dw t dh t wlz t whz d ata valid h igh impedance t wc address ce we data in oe data out t aw t wp t as t cw t wr1 t dw t dh d ata valid h igh impedance
gs72108atp/j specifications cited are subject to change without notice . for latest documentation see http://www.gsitechnology.com. rev: 1.07 10/2007 9/13 ? 2001, gsi technology 36-pin soj, 400 mil 1 e b1 d a1 a2 y e h e q c l g e detail a a b a notes: 1. dimension d& e do not include interlead flash. 2. dimension b1 does not include dambar protrusion/intrusion. 3. controlling dimension: inches symbol dimension in inch dimension in mm min nom max min nom max a ?? 0.146 ?? 3.70 a1 0.026 ?? 0.66 ?? a2 0.105 0.110 0.115 2.67 2.80 2.92 b 0.013 0.017 0.021 0.33 0.43 0.53 b1 0.024 0.028 0.032 0.61 0.71 0.81 c 0.006 0.008 0.012 0.15 0.20 0.30 d 0.920 0.924 0.929 23.37 23.47 23.60 e 0.395 0.400 0.405 10.04 10.16 10.28 e ? 0.05 ?? 1.27 ? h e 0.430 0.435 0.440 10.93 11.05 11.17 g e 0.354 0.366 0.378 9.00 9.30 9.60 l 0.082 ?? 2.08 ?? y ?? 0.004 ?? 0.10 q 0 o ? 10 o 0 o ? 10 o
gs72108atp/j specifications cited are subject to change without notice . for latest documentation see http://www.gsitechnology.com. rev: 1.07 10/2007 10/13 ? 2001, gsi technology 44-pin, 400 mil tsop-ii d 122 23 44 e b q a a1 a2 y c detail a e h e l l1 a notes: 1. dimension d& e do not include interlead flash. 2. dimension b does not include dambar protrusion/intrusion. 3. controlling dimension: mm symbol dimension in inch dimension in mm min nom max min nom max a ?? 0.047 ?? 1.20 a1 0.002 ?? 0.05 ?? a2 0.037 0.039 0.041 0.95 1.00 1.05 b 0.01 0.014 0.018 0.25 0.35 0.45 c ? 0.006 ?? 0.15 ? d 0.721 0.725 0.729 18.31 18.41 18.51 e 0.396 0.400 0.404 10.06 10.16 10.26 e ? 0.031 ?? 0.80 ? h e 0.455 0.463 0.471 11.56 11.76 11.96 l 0.016 0.020 0.024 0.40 0.50 0.60 l1 ? 0.031 ?? 0.80 ? y ?? 0.004 ?? 0.10 q 0 o ? 5 o 0 o ? 5 o
gs72108atp/j specifications cited are subject to change without notice . for latest documentation see http://www.gsitechnology.com. rev: 1.07 10/2007 11/13 ? 2001, gsi technology ordering information part number * package access time temp. range status gs72108atp-7 400 mil tsop-ii 7 ns commercial mp gs72108atp-8 400 mil tsop-ii 8 ns commercial mp gs72108atp-10 400 mil tsop-ii 10 ns commercial mp gs72108atp-12 400 mil tsop-ii 12 ns commercial mp gs72108atp78i 400 mil tsop-ii 7 ns industrial mp gs72108atp-8i 400 mil tsop-ii 8 ns industrial mp gs72108atp-10i 400 mil tsop-ii 10 ns industrial mp gs72108atp-12i 400 mil tsop-ii 12 ns industrial mp gs72108agp-7 rohs-compliant 400 mil tsop-ii 7 ns commercial mp gs72108agp-8 rohs-compliant 400 mil tsop-ii 8 ns commercial mp gs72108agp-10 rohs-compliant 400 mil tsop-ii 10 ns commercial mp gs72108agp-12 rohs-compliant 400 mil tsop-ii 12 ns commercial mp gs72108agp78i rohs-compliant 400 mil tsop-ii 7 ns industrial mp gs72108agtp-8i rohs-compliant 400 mil tsop-ii 8 ns industrial mp GS72108AGP-10I rohs-compliant 400 mil tsop-ii 10 ns industrial mp gs72108agp-12i rohs-compliant 400 mil tsop-ii 12 ns industrial mp gs72108aj-7 400 mil soj 7 ns commercial mp gs72108aj-8 400 mil soj 8 ns commercial mp gs72108aj-10 400 mil soj 10 ns commercial mp gs72108aj-12 400 mil soj 12 ns commercial mp gs72108aj-7i 400 mil soj 7 ns industrial mp gs72108aj-8i 400 mil soj 8 ns industrial mp gs72108aj-10i 400 mil soj 10 ns industrial mp gs72108aj-12i 400 mil soj 12 ns industrial mp notes: 1. customers requiring delivery in tape and reel should add the character ?t? to t he end of the part number. for example: gs 721 08tp-8t. 2. mp = mass production. pq = pre-qualification.
gs72108atp/j specifications cited are subject to change without notice . for latest documentation see http://www.gsitechnology.com. rev: 1.07 10/2007 12/13 ? 2001, gsi technology gs72108agj-7 rohs-compliant 400 mil soj 7 ns commercial mp gs72108agj-8 rohs-compliant 400 mil soj 8 ns commercial mp gs72108agj-10 rohs-compliant 400 mil soj 10 ns commercial mp gs72108agj-12 rohs-compliant 400 mil soj 12 ns commercial mp gs72108agj-7i rohs-compliant 400 mil soj 7 ns industrial mp gs72108agj-8i rohs-compliant 400 mil soj 8 ns industrial mp gs72108agj-10i rohs-compliant 400 mil soj 10 ns industrial mp gs72108agj-12i rohs-compliant 400 mil soj 12 ns industrial mp ordering information part number * package access time temp. range status
gs72108atp/j specifications cited are subject to change without notice . for latest documentation see http://www.gsitechnology.com. rev: 1.07 10/2007 13/13 ? 2001, gsi technology 2mb asynchronous datash eet revision history rev. code: old; new types of changes format or content page #/revisions/reason 72108a_r1 ? creation of new datasheet 72108a_r1; 72108a_r1_01 content ? added 6 ns speed bin ? updated all power numbers 72108a_r1_01; 72108a_r1_02 content ? updated recommended operating conditions table on page 4 ? changed fpbga package from 6 x 10 to 6 x 8 (package u) 72108a_r1_02; 72108a_r1_03 content ? removed all references to ?u? package 72108a_r1_03; 72108a_r1_04 content ? removed 6 ns speed bin from entire document ? added 7 ns speed bin to entire document 72108a_r1_04; 72108a_r1_05 content ? updated format ? added rohs-compliant information for tsop-ii package 72108a_r1_05; 72108a_r1_06 content ? added rohs-compliant 400 mil soj 72108a_r1_05; 72108a_r1_06 content ? updated to mp in ordering information table

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