WS57C51C MILITARY HIGH SPEED 16K x 8 CMOS PROM/RPROM KEY FEATURES • Ultra-Fast Access Time • Pin Compatible with Am27S51 — 45 ns and N82HS1281 • Immune to Latch-Up • Low Power Consumption • Fast Programming — Up to 200 mA • ESD Protection Exceeds 2000 V GENERAL DESCRIPTION The WS57C51C is a High Performance 128K UV Erasable Electrically Re-Programmable Read Only Memory (RPROM). It is manufactured in an advanced CMOS technology which enables it to operate at Bipolar PROM speeds while consuming only 25% of the power required by its Bipolar counterparts. A further advantage of the WS57C51C over Bipolar PROM devices is the fact that it utilizes a proven EPROM technology. This enables the entire memory array to be tested for switching characteristics and functionality after assembly. Unlike devices which cannot be erased, every WS5751C in a windowed package is 100% tested with worst case test patterns both before and after assembly. The WS57C51C provides a low power alternative to those designs which are committed to a Bipolar PROM footprint. It is a direct drop-in replacement for a Bipolar PROM of the same architecture (16K x 8). No software, hardware or layout changes need be performed. PIN CONFIGURATION MODE SELECTION PINS CS1/ VPP CS2 CS3 CS4 VCC OUTPUTS TOP VIEW Chip Carrier Read VIL VIL VIH VIL VCC DOUT A6 A7 A8 A9 VCC A10 A11 MODE Output Disable VIH X X X VCC High Z 4 3 2 Output Disable X VIH X X VCC High Z Output Disable X X VIL X VCC High Z Output Disable X X X VIH VCC High Z Program VPP VIH X X VCC DIN VIL VIL VIH VCC DOUT VIL O2 NC GND Program Verify A5 A4 A3 A2 A1 A0 NC O0 O1 32 31 30 1 5 29 6 28 7 27 8 26 9 25 10 24 11 23 12 22 13 21 14 15 16 17 18 19 20 CERDIP A12 A13 CS1/VPP CS2 CS3 CS4 NC O7 O6 O3 NC O4 O5 A9 A8 A7 A6 A5 A4 A3 A2 A1 A0 O0 O1 O2 GND 1 2 3 4 5 6 7 8 9 10 11 12 13 14 28 27 26 25 24 23 22 21 20 19 18 17 16 15 VCC A10 A11 A12 A13 CS1/VPP CS2 CS3 CS4 O7 O6 O5 O4 O3 PRODUCT SELECTION GUIDE PARAMETER WS57C51C-45 WS57C51C-55 WS57C51C-70 Address Access Time (Max) 45 ns 55 ns 70 ns CS to Output Valid Time (Max) 20 ns 25 ns 30 ns Return to Main Menu 4-11 WS57C51C ORDERING INFORMATION SPEED PACKAGE TYPE PACKAGE DRAWING OPERATING TEMPERATURE RANGE WSI MANUFACTURING PROCEDURE 45 45 45 55 55 55 32 Pad CLLCC 28 Pin CERDIP, 0.6" 28 Pin CERDIP, 0.3" 32 Pad CLLCC 28 Pin CERDIP, 0.6" 28 Pin CERDIP, 0.3" C2 D2 T2 C2 D2 T2 Military Military Military Military Military Military MIL-STD-883C MIL-STD-883C MIL-STD-883C MIL-STD-883C MIL-STD-883C MIL-STD-883C PART NUMBER WS57C51C-45CMB WS57C51C-45DMB WS57C51C-45TMB WS57C51C-55CMB WS57C51C-55DMB WS57C51C-55TMB NOTES: 9. The actual part marking will not include the initials "WS." PROGRAMMING/ALGORITHMS/ERASURE/PROGRAMMERS REFER TO PAGE 5-1 The WS57C51C is programmed using Algorithm D shown on page 5-9. For complete data sheet and electrical specifications see page 2-47. Return to Main Menu 4-12