WS57C191C/291C MILITARY HIGH SPEED 2K x 8 CMOS PROM/RPROM KEY FEATURES • Ultra-Fast Access Time • Pin Compatible with Am27S191/291 and N82S191 Bipolar PROMs — t ACC = 35 ns — t CS = 20 ns • Immune to Latch-UP • Low Power Consumption • Fast Programming • Available in 300 and 600 Mil DIP — Up to 200 mA • ESD Protection Exceeds 2000V GENERAL DESCRIPTION The WS57C191C/291C is an extremely High Performance 16K 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. The WS57C191C/291C is also configured in the standard Bipolar PROM pinout which provides an easy upgrade path for systems which are currently using Bipolar PROMs. The WS57C191C is packaged in a conventional 600 mil DIP package. The WS57C291C is packaged in a space saving 300 mil DIP package configuration. MODE SELECTION PINS MODE PIN CONFIGURATION CS1/VPP CS2 CS3 VCC OUTPUTS TOP VIEW CERDIP Read VIL VIH VIH VCC DOUT Output Disable VIH X X VCC High Z Output Disable X VIL X VCC High Z Program VPP X X VCC DIN Program Verify VIL VIH VIH VCC DOUT Output Disable X X VIL VCC High Z A7 A6 A5 A4 A3 A2 A1 A0 O0 O1 O2 GND 1 2 3 4 5 6 7 8 9 10 11 12 24 23 22 21 20 19 18 17 16 15 14 13 VCC A8 A9 A10 CS1/VPP CS2 CS3 O7 O6 O5 O4 O3 PRODUCT SELECTION GUIDE PARAMETER WS57C191C/291C-35 WS57C191C/291C-45 WS57C191C/291C-55 Address Access Time (Max) 35 ns 45 ns 55 ns CS to Output Valid Time (Max) 20 ns 20 ns 20 ns Return to Main Menu 4-3 WS57C191C/291C ORDERING INFORMATION PART NUMBER SPEED (ns) PACKAGE TYPE OPERATING WSI PACKAGE TEMPERATURE MANUFACTURING DRAWING RANGE PROCEDURE WS57C191C WS57C191C-35DMB WS57C191C-45DMB WS57C191C-55DMB 35 45 55 24 Pin CERDIP, 0.6" 24 Pin CERDIP, 0.6" 24 Pin CERDIP, 0.6" D1 D1 D1 Military Military Military MIL-STD-883C MIL-STD-883C MIL-STD-883C 35 45 55 24 Pin CERDIP, 0.3" 24 Pin CERDIP, 0.3" 24 Pin CERDIP, 0.3" T1 T1 T1 Military Military Military MIL-STD-883C MIL-STD-883C MIL-STD-883C WS57C291C WS57C291C-35TMB WS57C291C-45TMB WS57C291C-55TMB NOTE: 9. The actual part marking will not include the initials "WS." PROGRAMMING/ALGORITHMS/ERASURE/PROGRAMMERS REFER TO PAGE 5-1 The WS57C191C and WS57C291C are programmed using Algorithm D shown on page 5-9. For complete data sheet and electrical specifications see page 2-7. Return to Main Menu 4-4