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General Description

The FM27C040 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. The ¡°Don¡¯t Care¡± feature on VPP during read operations allows memory expansions from 1M to 8 Mbits with no printed circuit board changes.

Features

¡ö High performance CMOS

¡ª120, 150ns access time*

¡ö Simplified upgrade path

¡ªVPP is a ¡°Don¡¯t Care¡± during normal read operation

¡ö Manufacturer¡¯s identification code

¡ö JEDEC standard pin configuration

¡ª32-pin PDIP

¡ª32-pin PLCC

¡ª32-pin CERDIP