27C040数据手册ONSEMI中文资料规格书

描述 Description

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 VPPduring read operations allows memory expansions from 1M to 8 Mbits with no printed circuit board changes.

特性 Features

■High performance CMOS
—90, 120, 150ns access time*
■Simplified upgrade path
—VPPis a “Don’t Care” during normal read operation
■Manufacturer’s identification code
■JEDEC standard pin configuration
—32-pin PLCC
—32-pin CERDIP