4,194,304位512K ×8的高性能CMOS EPROM 4,194,304-Bit 512K x 8 High Performance CMOS EPROM
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.
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