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gs74108atp/j/x 512k x 8 4mb asynchronous sram 8, 10, 12 ns 3.3 v v dd center v dd and v ss soj, tsop, fp-bga commercial temp industrial temp rev: 1.07 1/2006 1/13 ? 2001, giga semiconductor, inc. specifications cited are subject to change without notice . for latest documentation see http://www.gsitechnology.com. features ? fast access time: 8, 10, 12 ns ? cmos low power operation: 120/95/85 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-ii package gp: rohs-compliant 400 mil, 44-pin tsop-ii package x: 6 mm x 10 mm fpbga package gx: rohs-compliant 6 mm x 10 mm fpbga package ? rohs-compliant packages available description the gs74108a is a high speed cmos static ram organized as 524,288 words by 8 bits. static design eliminates the need for external clocks or timing strobes. the gs74108a operates on a single 3.3 v power supply and all inputs and outputs are ttl-compatible. the gs74108a is available in 400 mil soj, 400 mil tsop-ii, and 6 mm x 10 mm fpbga packages. pin descriptions symbol description a 0 ?a 18 address input dq 1 ?dq 8 data input/output ce chip enable input we write enable input oe output enable input v +3.3 v power supply v 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 a 18 soj 512k x 8-pin configuration 1 2 3 4 5 6 a nc oe a 2 a 6 a 7 nc b dq 1 nc a 1 a 5 ce dq 8 c dq 2 nc a 0 a 4 nc dq 7 d v ss nc a 18 a 3 nc v dd e v dd nc a 17 a 9 nc v ss f dq 3 nc a 13 a 10 nc dq 6 g dq 4 nc a 14 a 11 we dq 5 h nc a 16 a 15 a 12 a 8 nc fp-bga 512k x 8 bump configuration (package x) 6 mm x 10 mm dd ss *all gsi technology packages are at least 5/6 rohs compliant. packages listed with the additional ?g ? designator are 6/6 rohs compliant.
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 a 18 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 gs74108atp/j/x specifications cited are subject to change without notice . for latest documentation see http://www.gsitechnology.com. rev: 1.07 1/2006 2/13 ? 2001, giga semiconductor, inc. tsop-ii 512k x 8- pin configuration memory array row decoder column decoder address input buffer control i/o buffer a 0 ce we oe dq 1 a 18 dq 8 block diagra m
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 gs74108atp/j/x specifications cited are subject to change without notice . for latest documentation see http://www.gsitechnology.com. rev: 1.07 1/2006 3/13 ? 2001, giga semiconductor, inc. note: x: ?h? or ?l? 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 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 . recommended oper ating conditions parameter symbol min typ max unit supply voltage for -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 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.
capacitance parameter symbol test condition max unit input capacitance c v = 0 v 5 pf output capacitance c v = 0 v 7 pf gs74108atp/j/x specifications cited are subject to change without notice . for latest documentation see http://www.gsitechnology.com. rev: 1.07 1/2006 4/13 ? 2001, giga semiconductor, inc. notes: 1. tested at t a = 25c, f = 1 mhz 2. these parameters are sampled and are not 100% tested. 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 = ?4 ma 2.4 ? output low voltage v ol i = +4 ma ? 0.4 v power supply currents parameter symbol test conditions 0 to 70c ?40 to 85c 8 ns 10 ns 12 ns 8 ns 10 ns 12 ns operating supply current i ce v all other inputs v or v min. cycle time i = 0 ma 120 ma 95 ma 85 ma 130 ma 105 ma 95 ma standby current i ce v all other inputs v or v min. cycle time 30 ma 25 ma 22 ma 40 ma 35 ma 32 ma standby current i ce v - 0.2v all other inputs v - 0.2v or 0.2v 10 ma 20 ma in in out out oh lo dd il ih il out sb1 ih ih il sb2 dd dd
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 gs74108atp/j/x specifications cited are subject to change without notice . for latest documentation see http://www.gsitechnology.com. rev: 1.07 1/2006 5/13 ? 2001, giga semiconductor, inc. ac test conditions ac characteristics read cycle parameter symbol -8 -10 -12 unit min max min max min max read cycle time t 8 ? 10 ? 12 ? ns address access time t ? 8 ? 10 ? 12 ns chip enable access time ( ce ) t ? 8 ? 10 ? 12 ns output enable to output valid ( oe ) t ? 3.5 ? 4 ? 5 ns output hold from address change t 3 ? 3 ? 3 ? ns chip enable to output in low z ( ce ) t * 3 ? 3 ? 3 ? ns output enable to output in low z ( oe ) t * 0 ? 0 ? 0 ? ns chip disable to output in high z ( ce ) t * ? 4 ? 5 ? 6 ns output disable to output in high z ( oe ) t * ? 3.5 ? 4 ? 5 ns * these parameters are sampled and are not 100% tested. rc aa ac oe oh lz olz hz ohz
t aa t oh t rc address data out previous data data valid gs74108atp/j/x specifications cited are subject to change without notice . for latest documentation see http://www.gsitechnology.com. rev: 1.07 1/2006 6/13 ? 2001, giga semiconductor, inc. read cycle 1: ce = oe = v il , we = v ih 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 read cycle 2: we = v ih
write cycle parameter symbol -8 -10 -12 unit min max min max min max write cycle time twc 8 ? 10 ? 12 ? ns address valid to end of write taw 5.5 ? 7 ? 8 ? ns chip enable to end of write tcw 5.5 ? 7 ? 8 ? ns data set up time tdw 4 ? 5 ? 6 ? ns data hold time tdh 0 ? 0 ? 0 ? ns write pulse width twp 5.5 ? 7 ? 8 ? ns address set up time tas 0 ? 0 ? 0 ? ns write recovery time ( we ) twr 0 ? 0 ? 0 ? ns write recovery time ( ce ) twr1 0 ? 0 ? 0 ? ns output low z from end of write twlz * 3 ? 3 ? 3 ? ns write to output in high z twhz * ? 3.5 ? 4 ? 5 ns gs74108atp/j/x specifications cited are subject to change without notice . for latest documentation see http://www.gsitechnology.com. rev: 1.07 1/2006 7/13 ? 2001, giga semiconductor, inc. * these parameters are sampled and are not 100% tested. 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 write cycle 1: we control
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 gs74108atp/j/x specifications cited are subject to change without notice . for latest documentation see http://www.gsitechnology.com. rev: 1.07 1/2006 8/13 ? 2001, giga semiconductor, inc. write cycle 2: ce control 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. 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 36-pin soj, 400 mil
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 gs74108atp/j/x specifications cited are subject to change without notice . for latest documentation see http://www.gsitechnology.com. rev: 1.07 1/2006 9/13 ? 2001, giga semiconductor, inc. 44-pin, 400 mil tsop-ii
pin a1 index a1 e top view side view d a aaa pin a1 index e1 bottom view d1 c e e solder ball f b symbol unit: mm a 1.100.10 a1 0.20~0.30 f b f 0.30~0.40 c 0.36(typ) d 10.00.05 d1 5.25 e 6.00.05 e1 3.75 e 0.75(typ) aaa 0.10 a b c d e f g h 1 2 3 4 5 6 gs74108atp/j/x specifications cited are subject to change without notice . for latest documentation see http://www.gsitechnology.com. rev: 1.07 1/2006 10/13 ? 2001, giga semiconductor, inc. 6 mm x 10 mm fpbga
gs74108atp/j/x specifications cited are subject to change without notice . for latest documentation see http://www.gsitechnology.com. rev: 1.07 1/2006 11/13 ? 2001, giga semiconductor, inc. ordering information part number 1 package 2 access time temp. range status 3 gs74108atp-8 400 mil tsop-ii 8 ns commercial mp gs74108atp-10 400 mil tsop-ii 10 ns commercial mp gs74108atp-12 400 mil tsop-ii 12 ns commercial mp gs74108atp-8i 400 mil tsop-ii 8 ns industrial mp gs74108atp-10i 400 mil tsop-ii 10 ns industrial mp gs74108atp-12i 400 mil tsop-ii 12 ns industrial mp gs74108agp-8 rohs-compliant 400 mil tsop-ii 8 ns commercial pq gs74108agp-10 rohs-compliant 400 mil tsop-ii 10 ns commercial pq gs74108agp-12 rohs-compliant 400 mil tsop-ii 12 ns commercial pq gs74108agp-8i rohs-compliant 400 mil tsop-ii 8 ns industrial pq gs74108agp-10i rohs-compliant 400 mil tsop-ii 10 ns industrial pq gs74108agp-12i rohs-compliant 400 mil tsop-ii 12 ns industrial pq gs74108aj-8 400 mil soj 8 ns commercial mp gs74108aj-10 400 mil soj 10 ns commercial mp gs74108aj-12 400 mil soj 12 ns commercial mp gs74108aj-8i 400 mil soj 8 ns industrial mp gs74108aj-10i 400 mil soj 10 ns industrial mp gs74108aj-12i 400 mil soj 12 ns industrial mp gs74108agj-8 rohs-compliant 400 mil soj 8 ns commercial pq gs74108agj-10 rohs-compliant 400 mil soj 10 ns commercial pq gs74108agj-12 rohs-compliant 400 mil soj 12 ns commercial pq gs74108agj-8i rohs-compliant 400 mil soj 8 ns industrial pq gs74108agj-10i rohs-compliant 400 mil soj 10 ns industrial pq gs74108agj-12i rohs-compliant 400 mil soj 12 ns industrial pq gs74108ax-8 6 mm x 10 mm fpbga 8 ns commercial mp gs74108ax-10 6 mm x 10 mm fpbga 10 ns commercial mp gs74108ax-12 6 mm x 10 mm fpbga 12 ns commercial mp gs74108ax-8i 6 mm x 10 mm fpbga 8 ns industrial mp gs74108ax-10i 6 mm x 10 mm fpbga 10 ns industrial mp
gs74108atp/j/x specifications cited are subject to change without notice . for latest documentation see http://www.gsitechnology.com. rev: 1.07 1/2006 12/13 ? 2001, giga semiconductor, inc. notes: 1. customers requiring delivery in tape and reel should add the character ?t? to the end of the part number. for example: gs7410 8atp-8t. 2. all gsi technology packages are at least 5/6 rohs compliant. packages listed with the additional ?g? designator are 6/6 rohs compliant. 3. mp = mass production. pq = pre-qualification. gs74108ax-12i 6 mm x 10 mm fpbga 12 ns industrial mp gs74108agx-8 rohs-compliant 6 mm x 10 mm fpbga 8 ns commercial pq gs74108agx-10 rohs-compliant 6 mm x 10 mm fpbga 10 ns commercial pq gs74108agx-12 rohs-compliant 6 mm x 10 mm fpbga 12 ns commercial pq gs74108agx-8i rohs-compliant 6 mm x 10 mm fpbga 8 ns industrial pq gs74108agx-10i rohs-compliant 6 mm x 10 mm fpbga 10 ns industrial pq GS74108AGX-12I rohs-compliant 6 mm x 10 mm fpbga 12 ns industrial pq ordering information part number 1 package 2 access time temp. range status 3
4m asynchronous datash eet revision history rev. code: old; new types of changes format or content page #/revisions/reason 74108a_r1 format/content ? creation of new datasheet 74108a_r1; 74108a_r1_01 content ? added 6 ns speed bin ? updated all power numbers 74108a_r1_01; 74108a_r1_02 content ? updated recommended operating conditions table on page 4 ? added 7 ns bin to entire document ? added x package 74108a_r1_02; 74108a_r1_03 content ? removed 6 ns speed bin from entire document ? corrected ?x? package pinout 74108a_r1_03; 74108a_r1_04 content ? removed 7 ns speed bin from entire document 74108a_r1_04; 74108a_r1_05 content ? updated format ? added pb-free information for tsop-ii package 74108a_r1_05; 74108a_r1_06 content ? added pb-free information for fp-bga package 74108a_r1_06; 74108a_r1_07 content ? added rohs-compliant information for soj ? changed pb-free references to rohs-compliant ? added status to ordering information table gs74108atp/j/x specifications cited are subject to change without notice . for latest documentation see http://www.gsitechnology.com. rev: 1.07 1/2006 13/13 ? 2001, giga semiconductor, inc.

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