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87C257

STMicroelectronics
Part Number 87C257
Manufacturer STMicroelectronics
Description ADDRESS LATCHED 256K 32K x 8 UV EPROM and OTP EPROM
Published Mar 22, 2005
Detailed Description M87C257 ADDRESS LATCHED 256K (32K x 8) UV EPROM and OTP EPROM INTEGRATED ADDRESS LATCH FAST ACCESS TIME: 45ns LOW POWER ...
Datasheet PDF File 87C257 PDF File

87C257
87C257

Overview
M87C257 ADDRESS LATCHED 256K (32K x 8) UV EPROM and OTP EPROM INTEGRATED ADDRESS LATCH FAST ACCESS TIME: 45ns LOW POWER “CMOS” CONSUMPTION: – Active Current 30mA – Standby Current 100µA PROGRAMMING VOLTAGE: 12.
75V ELECTRONIC SIGNATURE for AUTOMATED PROGRAMMING PROGRAMMING TIMES of AROUND 3sec.
(PRESTO II ALGORITHM) 28 1 FDIP28W (F) PLCC32 (C) Figure 1.
Logic Diagram DESCRIPTION The M87C257 is a high speed 262,144 bit UV erasable and electrically programmable EPROM.
The M87C257 incorporates latches for all address inputs to minimize chip count, reduce cost, and simplify the design of multiplexed bus systems.
The Window Ceramic Frit-Seal Dual-in-Line package has a transparent lid which al...


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