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NM27C256 - 262 /144-Bit (32K x 8) High Performance CMOS EPROM

General Description

The NM27C256 is a 256K Electrically Programmable Read Only Memory.

It is manufactured in Fairchild’s latest CMOS split gate EPROM technology which enables it to operate at speeds as fast as 90 ns access time over the full operating range.

Key Features

  • s High performance CMOS.
  • 90 ns access time s JEDEC standard pin configuration.
  • 28-pin PDIP package.
  • 32-pin chip carrier.
  • 28-pin CERDIP package s Drop-in replacement for 27C256 or 27256 s Manufacturer’s identification code Block Diagram VCC GND VPP OE Output Enable and Chip Enable Logic CE/PGM Data Outputs O0 - O7 Output Buffers Y Decoder . . Y Gating A0 - A14 Address Inputs X Decoder DS010833-1 © 1998 Fairchild Semiconductor Corporation 1 www. fairc.

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Other Datasheets by Fairchild (now onsemi)

Part Number Description
NM27C210 1 /048 /576-Bit (64K x 16) High Performance CMOS EPROM
NM27C240 4 /194 /304-Bit (256k x 16) High Performance CMOS EPROM
NM27C010 1 /048 /576-Bit (128K x 8) High Performance CMOS EPROM
NM27C020 2 /097 /152-Bit (256K x 8) UV Erasable CMOS EPROM
NM27C040 4 /194 /304-Bit (512K x 8) High Performance CMOS EPROM

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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NM27C256 262,144-Bit (32K x 8) High Performance CMOS EPROM July 1998 NM27C256 262,144-Bit (32K x 8) High Performance CMOS EPROM General Description The NM27C256 is a 256K Electrically Programmable Read Only Memory. It is manufactured in Fairchild’s latest CMOS split gate EPROM technology which enables it to operate at speeds as fast as 90 ns access time over the full operating range. The NM27C256 provides microprocessor-based systems extensive storage capacity for large portions of operating system and application software. Its 90 ns access time provides high speed operation with high-performance CPUs. The NM27C256 offers a single chip solution for the code storage requirements of 100% firmware-based equipment.