1 white electronic designs corporation ? phoenix, az ? (602) 437-1520 hi-reliability product wms128k8v-xxx n mil-std-883 compliant devices available n commercial, industrial and military temperature range n 3.3 volt power supply n low power cmos n ttl compatible inputs and outputs * this data sheet describes a product under development, not fully characterized, and is subject to change without notice. ** package under developement. 128kx8 3.3v monolithic sram preliminary* evolutionary pinout a 0-16 address inputs i/o 0-7 data input/outputs cs chip select oe output enable we write enable v cc +3.3v power v ss ground nc not connected pin description 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 nc a16 a14 a12 a7 a6 a5 a4 a3 a2 a1 a0 i/o0 i/o1 i/o2 v ss v cc a15 nc we a13 a8 a9 a11 oe a10 cs i/o7 i/o6 i/o5 i/o4 i/o3 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 a0 a1 a2 a3 cs i/o1 i/o2 v cc v ss i/o3 i/o4 we a4 a5 a6 a7 a16 a15 a14 a13 oe i/o8 i/o7 v ss v cc i/o6 i/o5 a12 a11 a10 a9 a8 top view top view 32 csoj (dr)** 32 flatpack (fr)** june 1999 rev. 2 features n access times 15, 17, 20, 25, 35ns n revolutionary, center power/ground pinout jedec approved ? 32 lead ceramic soj (package 101)** ? 32 lead ceramic flat pack (package 220)** n evolutionary, corner power/ground pinout jedec approved ? 32 pin ceramic dip (package 300) n 32 pin, rectangular ceramic leadless chip carrier (package 601) 32 dip (c) revolutionary pinout 5 6 7 8 9 10 11 12 13 29 28 27 26 25 24 23 22 21 4321323130 14 15 16 17 18 19 20 a7 a6 a5 a4 a3 a2 a1 a0 i/o 0 i/o1 i/o2 v ss i/o3 i/o4 i/o5 i/o6 we a13 a8 a9 a11 oe a10 cs i/o7 a12 a14 a16 a18 v cc a15 a17 top view 32 clcc
2 white electronic designs corporation ? phoenix, az ? (602) 437-1520 wms128k8v-xxx 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 vcc+0.5 v junction temperature t j 150 c supply voltage v cc -0.5 5.5 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 condition max unit input capacitance c in v in = 0v, f = 1.0mhz 20 pf output capacitance c out v out = 0v, f = 1.0mhz 20 pf this parameter is guaranteed by design but not tested. 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 operating temp. (mil.) t a -55 +125 c capacitance (t a = +25 c) i current source d.u.t. c = 50 pf eff i ol v 1.5v (bipolar supply) z current source oh notes: v z is programmable from -2v to +7v. i ol & i oh programmable from 0 to 16ma. tester impedance z 0 = 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 circuit 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 dc characteristics (v cc = 3.3v 0.3v, v ss = 0v, t a = -55 c to +125 c) parameter sym conditions units min max input leakage current i li v cc = 3.3, v in = gnd to v cc 10 m a output leakage current i lo cs = v ih , oe = v ih , v out = gnd to v cc 10 m a operating supply current (x 32 mode) i cc cs = v il , oe = v ih , f = 5mhz, v cc = 3.3 120 ma standby current i sb cs = v ih , oe = v ih , f = 5mhz, v cc = 3.3 8 ma output low voltage v ol i ol = 8ma 0.4 v output high voltage v oh i oh = -4.0ma 2.4 v
3 white electronic designs corporation ? phoenix, az ? (602) 437-1520 wms128k8v-xxx ac characteristics (v cc = 3.3v, t a = -55 c to +125 c) parameter symbol -15 -17 -20 -25 -35 units read cycle min max min max min max min max min max read cycle time t rc 15 17 20 25 35 ns address access time t aa 15 17 20 25 35 ns output hold from address change t oh 0000 0ns chip select access time t acs 15 17 20 25 35 ns output enable to output valid t oe 10 11 12 15 20 ns chip select to output in low z t clz 1 5555 5ns output enable to output in low z t olz 1 5555 5ns chip disable to output in high z t chz 1 8 9 10 12 15 ns output disable to output in high z t ohz 1 8 9 10 12 15 ns 1. this parameter is guaranteed by design but not tested. ac characteristics (v cc = 3.3v, t a = -55 c to +125 c) parameter symbol -15 -17 -20 -25 -35 units write cycle min max min max min max min max min max write cycle time t wc 15 17 20 25 35 ns chip select to end of write t cw 13 14 15 20 30 ns address valid to end of write t aw 13 14 15 20 30 ns data valid to end of write t dw 10 11 12 15 18 ns write pulse width t wp 13 14 15 20 30 ns address setup time t as 00 0 0 0 ns address hold time t ah 00 0 0 0 ns output active from end of write t ow 1 55 5 5 5 ns write enable to output in high z t whz 1 8 9 10 10 15 ns data hold time t dh 00 0 0 0 ns 1. this parameter is guaranteed by design but not tested.
4 white electronic designs corporation ? phoenix, az ? (602) 437-1520 wms128k8v-xxx ws32k32-xhx timing waveform - read cycle write cycle - cs controlled write cycle - we controlled address data i/o write cycle 1, we controlled t aw t cw t ah t wp t dw t whz t as t ow t dh t wc data valid cs we address data i/o write cycle 2, cs controlled t aw t as t cw t ah t wp t dh t dw t wc cs we data valid address data i/o read cycle 2 (we = v ih ) t aa t acs t oe t clz t olz t ohz t rc data valid high impedance cs oe t chz address data i/o read cycle 1 (cs = oe = v il , we = v ih ) t aa t oh t rc data valid previous data valid
5 white electronic designs corporation ? phoenix, az ? (602) 437-1520 wms128k8v-xxx all linear dimensions are millimeters and parenthetically in inches package 101: 32 lead, ceramic soj 1.27 (0.050) typ 21.1 (0.830) 0.25 (0.010) pin 1 identifier 19.1 (0.750) typ 11.3 (0.446) 0.2 (0.009) 3.96 (0.156) max 0.2 (0.008) 0.05 (0.002) 9.55 (0.376) 0.25 (0.010) 1.27 (0.050) 0.25 (0.010) 0.89 (0.035) radius typ package 220: 32 lead, ceramic flat pack all linear dimensions are millimeters and parenthetically in inches 10.41 (0.410) 0.13 (0.005) 2.60 (0.102) max 0.127 (0.005) + 0.05 (0.002) 0.025 (0.001) pin 1 identifier 1.27 (0.050) typ 19.05 (0.750) typ 10.16 (0.400) 0.51 (0.020) 0.43 (0.017) 0.05 (0.002) 20.83 (0.820) 0.25 (0.010)
6 white electronic designs corporation ? phoenix, az ? (602) 437-1520 wms128k8v-xxx package 300: 32 pin, ceramic dip, single cavity side brazed 2.5 (0.100) typ 1.27 (0.050) 0.1 (0.005) 0.46 (0.018) 0.05 (0.002) 0.84 (0.033) 0.4 (0.014) 3.2 (0.125) min 15.04 (0.592) 0.3 (0.012) 0.25 (0.010) 0.05 (0.002) 15.25 (0.600) 0.25 (0.010) 42.4 (1.670) 0.4 (0.016) 4.34 (0.171) 0.79 (0.031) pin 1 identifier all linear dimensions are millimeters and parenthetically in inches
7 white electronic designs corporation ? phoenix, az ? (602) 437-1520 wms128k8v-xxx all linear dimensions are millimeters and parenthetically in inches package 601: 32 pin, rectangular ceramic leadless chip carrier 7.62 (0.300) typ 5.08 (0.200) typ 3.81 (0.150) typ 10.16 (0.400) typ 0.38 (0.015) x 45 pin 1 identifier 0.56 (0.022) 0.71 (0.028) 11.25 (0.443) 14.15 (0.457) 13.79 (0.543) 14.15 (0.557) 1.63 (0.064) 2.54 (0.100) pin 1 1.02 (0.040) x 45 3 places
8 white electronic designs corporation ? phoenix, az ? (602) 437-1520 wms128k8v-xxx lead finish: blank = gold plated leads a = solder dip leads device grade: m = military screened -55 c to +125 c i = industrial -40 c to +85 c c = commercial 0 c to +70 c package: c = 32 pin ceramic .600" dip (package 300) cl = 32 pin rectangular ceramic leadless chip carrier (package 601) dr = 32 lead ceramic soj (package 101**) revolutionary fr = 32 lead ceramic flat pack (package 220**) revolutionary access time (ns) improvement mark: low voltage supply 3.3v 10% organization, 128k x 8 sram monolithic white electronic designs corp. ordering information w m s 128k8 v - xxx x x x ** package under developement.
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