1 white electronic designs corporation ? phoenix, az ? (602) 437-1520 hi-reliability product wms512k8bv-xxxe 512kx8 monolithic sram preliminary* features n access times 15, 17, 20ns n mil-std-883 compliant devices available n revolutionary, center power/ground pinout jedec approved ? 36 lead ceramic soj (package 100) ? 36 lead ceramic flat pack (package 226) n evolutionary, corner power/ground pinout jedec approved ? 32 pin ceramic dip (package 300) ? 32 lead ceramic soj (package 101) ? 32 lead ceramic flat pack (package 220) n low voltage operation: ? 3.3v 10% power supply n bicmos: ? radiation tolerant with epitaxial layer die n commercial, industrial and military temperature range n ttl compatible inputs and outputs n fully static operation: ? no clock or refresh required. n three state output. * this data sheet describes a product under development, not fully characterized, and is subject to change without notice. revolutionary pinout evolutionary pinout 32 dip 32 csoj (de) 32 flat pack (fe) top view 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 a18 a16 a14 a12 a7 a6 a5 a4 a3 a2 a1 a0 i/o0 i/o1 i/o2 gnd v cc a15 a17 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 17 18 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 a0 a1 a2 a3 a4 cs i/o0 i/o1 v cc gnd i/o2 i/o3 we a5 a6 a7 a8 a9 nc a18 a17 a16 a15 oe i/o7 i/o6 gnd v cc i/o5 i/o4 a14 a13 a12 a11 a10 nc a 0-18 address inputs i/o 0-7 data input/output cs chip select oe output enable we write enable v cc power supply gnd ground pin description 36 flat pack 36 csoj top view june 1999 rev. 2
2 white electronic designs corporation ? phoenix, az ? (602) 437-1520 wms512k8bv-xxxe 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 condition max unit input capacitance c in v in = 0v, f = 1.0mhz 12 pf output capacitance c out v out = 0v, f = 1.0mhz 12 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) dc characteristics (v cc = 3.3v, gnd = 0v, t a = -55 c to +125 c) parameter sym conditions units min max input leakage current i li v cc = 5.5, 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 i cc cs = v il , oe = v ih , f = 5mhz, vcc = 5.5 120 ma standby current i sb cs = v ih , oe = v ih , f = 5mhz, vcc = 5.5 15 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
3 white electronic designs corporation ? phoenix, az ? (602) 437-1520 wms512k8bv-xxxe ac characteristics (v cc = 3.3v, gnd = 0v, t a = -55 c to +125 c) parameter symbol -15 -17 -20 units read cycle min max min max min max read cycle time t rc 15 17 20 ns address access time t aa 15 17 20 ns output hold from address change t oh 000ns chip select access time t acs 15 17 20 ns output enable to output valid t oe 7810ns chip select to output in low z t clz 1 222ns output enable to output in low z t olz 1 000ns chip disable to output in high z t chz 1 7810ns output disable to output in high z t ohz 1 7810ns 1. this parameter is guaranteed by design but not tested. ac characteristics (v cc = 3.3v, gnd = 0v, t a = -55 c to +125 c) parameter symbol -15 -17 -20 units write cycle min max min max min max write cycle time t wc 15 17 20 ns chip select to end of write t cw 10 12 14 ns address valid to end of write t aw 10 12 14 ns data valid to end of write t dw 8910ns write pulse width t wp 12 14 14 ns address setup time t as 00 0ns address hold time t ah 00 0ns output active from end of write t ow 1 23 3ns write enable to output in high z t whz 1 889ns data hold time t dh 00 0ns 1. this parameter is guaranteed by design but not tested. 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
4 white electronic designs corporation ? phoenix, az ? (602) 437-1520 wms512k8bv-xxxe 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 wms512k8bv-xxxe package 100: 36 lead, ceramic soj 1.27 (0.050) typ 23.37 (0.920) 0.25 (0.010) pin 1 identifier 21.6 (0.850) typ 11.3 (0.446) 0.2 (0.009) 4.7 (0.184) max 0.89 (0.035) radius typ 0.2 (0.008) 0.05 (0.002) 9.55 (0.376) 0.25 (0.010) 1.27 (0.050) 0.25 (0.010) all linear dimensions are millimeters and parenthetically in inches 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
6 white electronic designs corporation ? phoenix, az ? (602) 437-1520 wms512k8bv-xxxe 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) package 226: 36 lead, ceramic flat pack all linear dimensions are millimeters and parenthetically in inches 23.37 (0.920) 0.25 (0.010) 32.64 (1.285) typ 12.95 (0.510) 0.13 (0.005) 3.8 (0.150) typ 2.72 (0.107) max 0.127 (0.005) 0.05 (0.002) pin 1 identifier 1.27 (0.050) typ 21.59 (0.850) typ 38.1 (1.50) 0.4 (0.015) 12.7 (0.500) 0.5 (0.020) 5.1 (0.200) 0.25 (0.010) 0.43 (0.017) 0.05 (0.002)
7 white electronic designs corporation ? phoenix, az ? (602) 437-1520 wms512k8bv-xxxe 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
8 white electronic designs corporation ? phoenix, az ? (602) 437-1520 wms512k8bv-xxxe ordering information lead finish: blank = gold plated leads a = solder dip leads e = epitaxial layer 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) de = 32 lead ceramic soj (package 101) evolutionary dj = 36 lead ceramic soj (package 100) f = 36 lead ceramic flat pack (package 226) fe = 32 lead ceramic flat pack (package 220) access time (ns) low voltage supply 3.3v 10% bicmos organization, 512k x 8 sram monolithic white electronic designs corp. w m s 512k 8 b v - xxx x x e x
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