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gs71108au 128k x 8 1mb asynchronous sram 7, 8, 10, 12 ns 3.3 v v dd center v dd and v ss fp-bga commercial temp industrial temp rev: 1.10a 3/2011 1/11 ? 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: 140/120/95/80 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 u: 6 mm x 8 mm fine pitch ball grid array package gu: rohs-compliant 6 mm x 8 mm fine pitch ball grid array package description the gs71108a is a high speed cmos static ram organized as 131,072 words by 8 bits. static design eliminates the need for external clocks or timing strobes. the gs 71108 operates on a single 3.3 v power supply and all inputs and outputs are ttl-compatible. the gs71108a is available in the 6 mm x 8 mm fine pitch bga package. pin descriptions symbol description a 0 ? a 16 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 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 nc a 3 nc v dd e v dd nc nc nc nc v ss f dq 3 nc a 14 a 11 dq 5 dq 6 g dq 4 nc a 15 a 12 we a 8 h nc a 10 a 16 a 13 a 9 nc fine pitch bga 128k x 8-bump configuration package u 6 mm x 8 mm, 0.75 mm bump pitch top view
memory array row decoder column decoder address input buffer control i/o buffer a 0 ce we oe dq 1 a 16 dq 8 gs71108au specifications cited are subject to change without notice . for latest documentation see http://www.gsitechnology.com. rev: 1.10a 3/2011 2/11 ? 2001, gsi technology block diagram 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 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 gs71108au specifications cited are subject to change without notice . for latest documentation see http://www.gsitechnology.com. rev: 1.10a 3/2011 3/11 ? 2001, gsi technology note: permanent device damage may occur if absolute maximum ratings ar e exceeded. functional operation shall be restricted to recommended 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 -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 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 in v = 0 v 5 pf output capacitance c out v = 0 v 7 pf gs71108au specifications cited are subject to change without notice . for latest documentation see http://www.gsitechnology.com. rev: 1.10a 3/2011 4/11 ? 2001, gsi technology 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 7 ns 8 ns 10 ns 12 ns 7 ns 8 ns 10 ns 12 ns operating supply current i dd ce v all other inputs v or v min. cycle time i = 0 ma 140 ma 120 ma 95 ma 80 ma 145 ma 125 ma 100 ma 85 ma standby current i sb1 ce v all other inputs v or v min. cycle time 25 ma 20 ma 20 ma 15 ma 30 ma 25 ma 25 ma 20 ma standby current i sb2 ce v ? 0.2 v all other inputs v ? 0.2 v or 0.2 v 2 ma 5 ma in out oh lo il ih il out ih ih il 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 gs71108au specifications cited are subject to change without notice . for latest documentation see http://www.gsitechnology.com. rev: 1.10a 3/2011 5/11 ? 2001, gsi technology ac test conditions ac characteristics 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 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 * 3 ? 3 ? 3 ? 3 ? ns output enable to output in low z ( oe ) t * 0 ? 0 ? 0 ? 0 ? ns chip disable to output in high z ( ce ) t * ? 3.5 ? 4 ? 5 ? 6 ns output disable to output in high z ( oe ) t * ? 3 ? 3.5 ? 4 ? 5 ns * these parameters are sampled and are not 100% tested lz olz hz ohz t aa t oh t rc address data out previous data data valid gs71108au specifications cited are subject to change without notice . for latest documentation see http://www.gsitechnology.com. rev: 1.10a 3/2011 6/11 ? 2001, gsi technology 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 -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 ? 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 gs71108au specifications cited are subject to change without notice . for latest documentation see http://www.gsitechnology.com. rev: 1.10a 3/2011 7/11 ? 2001, gsi technology * 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 gs71108au specifications cited are subject to change without notice . for latest documentation see http://www.gsitechnology.com. rev: 1.10a 3/2011 8/11 ? 2001, gsi technology write cycle 2: ce control c 5.25 0.75(typ). 3.75 pin a1 index 654321 a b d e f g h 0.22 0.05 1.20(max) 0.36(typ) ball dia. 0.35 pitch 0.75 d 0.10 pin a1 index bottom view top view 6.00 0.10 8.00 0.10 units: mm gs71108au specifications cited are subject to change without notice . for latest documentation see http://www.gsitechnology.com. rev: 1.10a 3/2011 9/11 ? 2001, gsi technology 6 mm x 8 mm fine pitch bga gs71108au specifications cited are subject to change without notice . for latest documentation see http://www.gsitechnology.com. rev: 1.10a 3/2011 10/11 ? 2001, gsi technology ordering information part number * package access time temp. range gs71108au-7 6 mm x 8 mm fine pitch bga 7 ns commercial gs71108au-8 6 mm x 8 mm fine pitch bga 8 ns commercial gs71108au-10 6 mm x 8 mm fine pitch bga 10 ns commercial gs71108au-12 6 mm x 8 mm fine pitch bga 12 ns commercial GS71108AU-7I 6 mm x 8 mm fine pitch bga 7 ns industrial gs71108au-8i 6 mm x 8 mm fine pitch bga 8 ns industrial gs71108au-10i 6 mm x 8 mm fine pitch bga 10 ns industrial gs71108au-12i 6 mm x 8 mm fine pitch bga 12 ns industrial gs71108agu-7 rohs-compliant 6 mm x 8 mm fine pitch bga 7 ns commercial gs71108agu-8 rohs-compliant 6 mm x 8 mm fine pitch bga 8 ns commercial gs71108agu-10 rohs-compliant 6 mm x 8 mm fine pitch bga 10 ns commercial gs71108agu-12 rohs-compliant 6 mm x 8 mm fine pitch bga 12 ns commercial gs71108agu-7i rohs-compliant 6 mm x 8 mm fine pitch bga 7 ns industrial gs71108agu-8i rohs-compliant 6 mm x 8 mm fine pitch bga 8 ns industrial gs71108agu-10i rohs-compliant 6 mm x 8 mm fine pitch bga 10 ns industrial gs71108agu-12i rohs-compliant 6 mm x 8 mm fine pitch bga 12 ns industrial note: customers requiring delivery in tape and r eel should add the character ?t? to the end of the part number. for example: gs71108a u-8t. 1mb asynchronous datash eet revision history rev. code: old; new types of changes format or content page #/revisions/reason 71108a_r1 ? creation of new datasheet 71108a_r1; 71108a_r1_01 content ? added 6 ns speed bin to entire document 71108a_r1_01; 71108a _r1_02 content ? updated all power numbers ? changed 6 mm x 10 mm package designator from u to x 71108a_r1_02; 71108a _r1_03 content ? updated recommended operating conditions table on page 3 ? updated power supply currents table ? changed fpbga package from 6 x 10 to 6 x 8 (package u) 71108a_r1_03; 71108a _r1_04 content ? removed 6 ns speed bin from entire document ? added 7 ns speed bin to entire document 71108a_r1_04; 71108a _r1_05 content ? added missing 300 mil soj mechanical drawing 71108a_r1_05; 71108a _r1_06 content ? updated format ? added rohs-compliant information for tsop-ii package 71108a_r1_06; 71108a _r1_07 content ? added rohs-compliant information for fp-bga package 71108a_r1_07; 71108a _r1_08 content ? added rohs-compliant 400 mil, 32-pin soj 71108a_r1_08; 71108a _r1_09 content ? updated to mp in ordering information table 71108a_r1_09; 71108a _r1_10 content ? removed status column from ordering information table ? removed soj package reference from entire document ? (rev1.10a: removed tsop-ii references due to eol (eol_091016111- cy) gs71108au specifications cited are subject to change without notice . for latest documentation see http://www.gsitechnology.com. rev: 1.10a 3/2011 11/11 ? 2001, gsi technology |
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