1 white electronic designs corporation ? (602) 437-1520 ? www.wedc.com white electronic designs w82m32v-xbx april, 2006 rev. 5 white electronic designs corp. reserves the right to change products or speci? cations without notice. 123 4 5 6 7 8910111213141516 ancncncncncncncncncncncncncncnc bnc nc nc nc nc nc nc nc ncncnc nc ncnc nc nc c nc nc nc a2 a1 a0 gnd gnd v cc v cc a18 a17 a16 gnd nc nc d nc nc cs#2 a3 a4 d14 d15 nc cs#4 d24 d25 oe# a15 nc nc nc e nc nc d9 d8 a19 d12 d13 gnd v cc d26 d27 we#4 d31 d30 nc nc f nc nc d10 d11 gnd gnd gnd gnd v cc v cc v cc v cc d28 d29 nc nc g nc nc we#2 gnd gnd gnd gnd gnd v cc v cc v cc v cc v cc nc nc nc h nc nc gnd gnd gnd gnd gnd gnd v cc v cc v cc v cc v cc v cc nc nc jncncv cc v cc v cc v cc v cc v cc gnd gnd gnd gnd gnd gnd nc nc k nc nc cs#1 v cc v cc v cc v cc v cc gnd gnd gnd gnd gnd nc nc nc lncnc d1 d0 v cc v cc v cc v cc gnd gnd gnd gnd d23 d22 nc nc m nc nc d2 d3 a20 d7 d5 v cc gnd d17 d16 cs#3 d20 d21 nc nc n nc nc we#1 a6 a5 d6 d4 nc we#3 d19 d18 a14 a13 nc nc nc p nc nc gnd a7 a8 a9 v cc v cc gnd gnd a10 a11 a12 v cc nc nc rnc nc nc nc nc nc nc nc ncncnc nc ncnc nc nc tncnc nc nc nc nc nc ncncncnc nc ncnc nc nc pin configuration for w82m32v-xbx top view pin description i/o0-31 data inputs/outputs a0-20 address inputs we#1-4 write enables cs#1-4 chip selects oe# output enable v cc power supply gnd ground nc not connected 2mx32 sram 3.3v multi-chip package low power cmos ttl compatible inputs and outputs fully static operation: ? no clock or refresh required. three state output. access times of 12, 15, 17, 20ns packaging ? 255 pbga, 25mm x 25mm, 625mm 2 organized as 2mx32 commercial, industrial and military temperature ranges low voltage operation: ? 3.3v 10% power supply we#1 cs#1 cs#2 cs#3 cs#4 we#4 we#3 we#2 2m x 8 2m x 8 2m x 8 2m x 8 oe# a 0-20 i/o 0-7 i/o 24-31 i/o 16-23 i/o 8-15 8888 block diagram features * this product is subject to change without notice.
2 white electronic designs corporation ? (602) 437-1520 ? www.wedc.com white electronic designs w82m32v-xbx april, 2006 rev. 5 white electronic designs corp. reserves the right to change products or speci? cations without notice. capacitance (ta = +25c) parameter symbol conditions max unit oe# capacitance c oe v in = 0 v, f = 1.0 mh z 30 pf we#1-4 capacitance c we v in = 0 v, f = 1.0 mh z 10 pf cs#1-4 capacitance c cs v in = 0 v, f = 1.0 mh z 10 pf data i/o capacitance c i/o v i/o = 0 v, f = 1.0 mh z 10 pf address input capacitance c ad v in = 0 v, f = 1.0 mh z 30 pf truth table absolute maximum ratings parameter symbol min max unit operating temperature t a -55 +125 c storage temperature t stg -65 +150 c signal voltage relative to gnd v g -0.5 4.6 v junction temperature t j 150 c supply voltage v cc -0.5 4.6 v cs# oe# we# mode data i/o power h x x standby high z standby l l h read data out active l x l write data in active l h h out disable high z active recommended operating conditions parameter symbol min max unit supply voltage v cc 3.0 3.6 v input high voltage v ih 2.2 v cc + 0.3 v input low voltage v il -0.3 +0.8 v dc characteristics (v cc = 3.3v 0.3v, -55c ta 125c) parameter sym conditions min max units input leakage current i li v in = gnd to v cc 10 a output leakage current i lo cs# = v ih , oe# = v ih , v out = gnd to v cc 10 a operating supply current (x 32 mode) i cc x 32 cs# = v il , oe# = v ih , f = 5mh z , v cc = 3.6v 1100 ma standby current i sb cs# = v ih , oe# = v ih , f = 5mh z , v cc = 3.6v 400 ma output low voltage v ol i ol = 8ma 0.4 v output high voltage v oh i oh = -4.0ma 2.4 v note: dc test conditions: v ih = v cc -0.3v, v il = 0.3v. note: contact factory for low power option. this parameter is guaranteed by design but not tested.
3 white electronic designs corporation ? (602) 437-1520 ? www.wedc.com white electronic designs w82m32v-xbx april, 2006 rev. 5 white electronic designs corp. reserves the right to change products or speci? cations without notice. ac test circuit notes: v z is programmable from -2v to +7v. i ol & i oh programmable from 0 to 16ma. tester impedance z0 = 75 w. v z is typically the midpoint of v oh and v ol . i ol & i oh are adjusted to simulate a typical resistive load circuit. ate tester includes jig capacitance. ac test conditions parameter typ unit input pulse levels v il = 0, v ih = 2.5 v input rise and fall 5 ns input and output reference level 1.5 v output timing reference level 1.5 v ac characteristics (v cc = 3.3v, -55c ta +125c) parameter read cycle symbol -12 -15 -17 -20 units min max min max min max min max read cycle time t rc 12 15 17 20 ns address access time t aa 12 15 17 20 ns output hold from address change t oh 3333ns chip select access time t acs 12 15 17 20 ns output enable to output valid t oe 78810ns chip select to output in low z t clz 1 3333ns output enable to output in low z t olz 1 1111ns chip disable to output in high z t chz 1 78810 ns output disable to output in high z t ohz 1 7 8 8 10 ns. ac characteristics (v cc = 3.3v, -55c ta +125c) parameter write cycle symbol -12 -15 -17 -20 units min max min max min max min max write cycle time t wc 12 15 17 20 ns chip select to end of write t cw 10 12 12 14 ns address valid to end of write t aw 10 12 12 14 ns data valid to end of write t dw 89 910 ns write pulse width t wp 10 12 14 14 ns address setup time t as 00 00 ns address hold time t ah 00 00 ns output active from end of write t ow 1 22 33 ns write enable to output in high z t whz 1 788 9ns data hold time t dh 0 0 0 0 ns current source i ol v z 1.5v d.u.t. c eff = 50pf current source i oh (bipolar supply) 1. this parameter is guaranteed by design but not tested 1. this parameter is guaranteed by design but not tested
4 white electronic designs corporation ? (602) 437-1520 ? www.wedc.com white electronic designs w82m32v-xbx april, 2006 rev. 5 white electronic designs corp. reserves the right to change products or speci? cations without notice. timing waveform - read cycle write cycle - cs# controlled write cycle - we# controlled a ddress data i/o previous data valid read cycle 1 (cs# = oe# = vil, we# = vih) data valid t oh t aa t rc a ddress t rc t aa cs# oe# data i/o high impedance read cycle 2 (we# = vih) data valid t ohz t clz t acs t chz t olz t oe a ddress cs# we# data i/o write cycle 1 we# controlled data valid t wc t aw t cw t ah t wp t as t dw t dh a ddress cs# we# data i/o write cycle 1, we# controlled data valid t wc t aw t cw t ah t wp t as t whz t dw t ow t dh
5 white electronic designs corporation ? (602) 437-1520 ? www.wedc.com white electronic designs w82m32v-xbx april, 2006 rev. 5 white electronic designs corp. reserves the right to change products or speci? cations without notice. 0.69 (0.027) nom 1.27 (0.050) nom 19.05 (0.750) nom 25.1 (0.988) max a b c d e f g h j k l m n p r t 25.1 (0.955) max 19.05 (0.750) nom 1.27 (0.050) nom 2.16 (0.085) max bottom view 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 255x 0.762(0.030) nom package 781: 255 ball grid array all linear dimensions are millimeters and parenthetically in inches
6 white electronic designs corporation ? (602) 437-1520 ? www.wedc.com white electronic designs w82m32v-xbx april, 2006 rev. 5 white electronic designs corp. reserves the right to change products or speci? cations without notice. ordering information device grade: m = military -55c to +125c i = industrial -40c to +85c c = commercial 0c to +70c package type: b = 25mm x 25mm, 255 pbga access time (ns) low voltage supply 3.3v 10% organization, 2mx32 user con? gurable as 4mx16 or 8mx8 sram white electronic designs corp. w 8 2m 32 v - xx x x
7 white electronic designs corporation ? (602) 437-1520 ? www.wedc.com white electronic designs w82m32v-xbx april, 2006 rev. 5 white electronic designs corp. reserves the right to change products or speci? cations without notice. document title 2m x 32 asynchronous sram revision history rev # history release date status rev 0 initial release july 2002 advanced rev 1 changes october 2002 advanced 1.1 add ac/dc electricals & timing diagrams (pg. 1-7) 1.2 change pinout to full 255 (16x16) array 1.3 change package dimension to full 255 (16x16) array rev 2 changes (pg.1,5,6,7) may 2002 advanced 2.1 change package dimension from 27mm square to 25mm square 2.2 change package height from 2.20mm to 2.70mm max rev 3 changes (pg.1,5,7) november 2003 advanced 3.1 change package mechanical drawing to new format. rev 4 changes (pg.1,7) may 2004 preliminary 4.1 change status to preliminary. rev 5 changes (pg. 1, 7) april 2006 final 5.1 change status to final
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