WS57C128FB MILITARY HIGH SPEED 16K x 8 CMOS EPROM KEY FEATURES * Ultra-Fast Access Time * Standard EPROM Pinout * DIP and Surface Mount Packaging -- 45 ns * Low Power Consumption * EPI Processing Available -- Latch-up Immunity Up to 200 mA GENERAL DESCRIPTION The WS57C128FB is a High Performance 128K UV Erasable Electrically Programmable Read Only Memory. It is manufactured with an advanced CMOS technology which enables it to operate at Bipolar speeds while consuming only 90 mA. Two major features of the WS57C128FB are its Low Power and High Speed. These features make it an ideal solution for applications which require fast access times, low power, and non-volatility. Typical applications include systems which do not utilize mass storage devices and/or are board space limited. The WS57C128FB is configured in the standard EPROM pinout which provides an easy upgrade path for systems which are currently using standard EPROMs. The EPROMs are available in both 600 Mil DIP packages, and leadless surface mount packages. MODE SELECTION PGM CE OE VPP VCC OUTPUTS Read X VIL VIL VCC VCC DOUT Output Disable X X VIH VCC VCC High Z MODE TOP VIEW Chip Carrier CERDIP A7 A12 VPP NC VCC PGM A13 PINS PIN CONFIGURATION Standby X VIH X VCC VCC High Z Program VIL VIL VIH VPP VCC DIN Program Verify VIH VIL VIL VPP VCC DOUT Program Inhibit X VIH X VPP VCC High Z A6 A5 A4 A3 A2 A1 A0 NC O0 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 O1 O2 GND 4 3 2 A8 A9 A11 NC OE A10 CE O7 O6 NC O3 O4 O5 VPP A12 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 PGM A13 A8 A9 A11 OE A10 CE O7 O6 O5 O4 O3 PRODUCT SELECTION GUIDE PARAMETER WS57C128FB-45 WS57C128FB-55 WS57C128FB-70 Address Access Time (Max) 45 ns 55 ns 70 ns Chip Select Time (Max) 45 ns 55 ns 70 ns Output Enable Time (Max) 25 ns 25 ns 25 ns Return to Main Menu 4-15 WS57C128FB ORDERING INFORMATION PART NUMBER WS57C128FB-45DMB WS57C128FB-55CMB WS57C128FB-55DMB WS57C128FB-70DMB* SPEED (ns) PACKAGE TYPE 45 55 55 70 28 Pin CERDIP, 0.6" 32 Pad CLLCC 28 Pin CERDIP, 0.6" 28 Pin CERDIP, 0.6" PACKAGE OPERATING DRAWING TEMPERATURE RANGE D2 C2 D2 D2 WSI MANUFACTURING PROCEDURE Military Military Military Military MIL-STD-883C MIL-STD-883C MIL-STD-883C MIL-STD-883C NOTE: 12. The actual part marking will not include the initials "WS." PROGRAMMING/ALGORITHMS/ERASURE/PROGRAMMERS REFER TO PAGE 5-1 The WS57C128FB is programmed using Algorithm D shown on page 5-9. For complete data sheet and electrical specifications see page 3-7. Return to Main Menu 4-16