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NM27C040 Datasheet 4 /194 /304-Bit (512K x 8) High Performance CMOS EPROM

Manufacturer: Fairchild (now onsemi)

General Description

The NM27C040 is a high performance, 4,194,304-bit Electrically Programmable UV Erasable Read Only Memory.

It is organized as 512K words of 8 bits each.

Its pin-compatibility with byte-wide JEDEC EPROMs enables upgrades through 8 Mbit EPROMs.

Overview

NM27C040 4,194,304-Bit (512K x 8) High Performance CMOS EPROM February 1999 NM27C040 4,194,304-Bit (512K x 8) High Performance CMOS.

Key Features

  • s High performance CMOS.
  • 120, 150ns access time.
  • s Simplified upgrade path.
  • VPP is a “Don’t Care” during normal read operation s Manufacturer’s identification code s JEDEC standard pin configuration.
  • 32-pin PDIP.
  • 32-pin PLCC.
  • 32-pin CERDIP.
  • Note: New revision meets 70ns. Please check with factory for availability. Block Diagram VCC GND VPP OE CE/PGM Output Enable, Chip Enable, and Program Logic Data Outputs O0 - O7 Output Buffers Y Decoder.