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WS57C51C MILITARY HIGH SPEED 16K x 8 CMOS PROM/RPROM KEY FEATURES * Ultra-Fast Access Time -- 45 ns * Pin Compatible with Am27S51 and N82HS1281 * Immune to Latch-Up -- Up to 200 mA * Low Power Consumption * Fast Programming * 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. MODE SELECTION MODE Read Output Disable Output Disable Output Disable Output Disable Program Program Verify PINS CS1/ VPP VIL VIH X X X VPP VIL CS2 VIL X VIH X X VIH VIL CS3 VIH X X VIL X X VIH CS4 VIL X X X VIH X VIL VCC VCC VCC VCC VCC VCC VCC VCC OUTPUTS PIN CONFIGURATION TOP VIEW Chip Carrier DOUT High Z High Z High Z High Z DIN DOUT A5 A4 A3 A2 A1 A0 NC O0 O1 A6 A7 A8 A9 VCC A10 A11 A9 A8 A7 A6 A5 A4 A3 A2 A1 A0 O0 O1 O2 GND CERDIP 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 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 O2 NC GND 432 A12 A13 CS1/VPP CS2 CS3 CS4 NC O7 O6 O3 NC O4 O5 PRODUCT SELECTION GUIDE PARAMETER Address Access Time (Max) CS to Output Valid Time (Max) WS57C51C-45 45 ns 20 ns WS57C51C-55 55 ns 25 ns WS57C51C-70 70 ns 30 ns Return to Main Menu 4-11 WS57C51C ORDERING INFORMATION SPEED PART NUMBER PACKAGE TYPE PACKAGE DRAWING OPERATING TEMPERATURE RANGE Military Military Military Military Military Military WSI MANUFACTURING PROCEDURE MIL-STD-883C MIL-STD-883C MIL-STD-883C MIL-STD-883C MIL-STD-883C MIL-STD-883C WS57C51C-45CMB WS57C51C-45DMB WS57C51C-45TMB WS57C51C-55CMB WS57C51C-55DMB WS57C51C-55TMB NOTES: 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 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 |
Price & Availability of WS57C51C-1
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