NM27C040
4,194,304-Bit (512K x 8) High Performance
CMOS EPROM 120ns CDIP-32
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.
The “Don´t Care” feature on VPP during read operations allows
memory expansions from 1M to 8 Mbits with no printed circuit
board changes.
The NM27C040 provides microprocessor-based systems extensive
storage capacity for large portions of operating system and
application software. Its 120ns access time provides high speed
operation with high-performance CPUs. The NM27C040 offers a
single chip solution for the code storage requirements of 100%
firmware-based equipment. Frequently used software routines
are quickly executed from EPROM storage, greatly enhancing
system utility.
The NM27C040 is manufactured using Fairchild´s advanced
CMOS AMG™ EPROM technology.
Features
> High performance CMOS
—120ns access time
> Simplified upgrade path
—VPP is a “Don´t Care” during normal read operation
> Manufacturer´s identification code
> JEDEC standard pin configuration
Search keyword: NM27C040Q-120
EPROM 512kx8 120ns CDIP-32 Type 27C040-120
Info as pdf-file
Type: 27C040-120
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