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27C040

Fairchild
Part Number 27C040
Manufacturer Fairchild
Description 4 /194 /304-Bit (512K x 8) High Performance CMOS EPROM
Published May 28, 2005
Detailed Description NM27C040 4,194,304-Bit (512K x 8) High Performance CMOS EPROM February 1999 NM27C040 4,194,304-Bit (512K x 8) High Per...
Datasheet PDF File 27C040 PDF File

27C040
27C040

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 EPROM 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 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 .
.
Y Gating A0 - A18 Address Inputs .
.
4,194,304-Bit Cell Matrix X Decoder DS010836-1 AMG™ is a trademark of WSI, Inc.
© 1999 Fairchild Semiconductor Corporation NM27C040 Rev.
C.
1 1 www.
fairchildsemi.
com NM27C040 4,194,304-Bit (512K x 8) High Performance CMOS EPROM Connection Diagrams 27C080 27C020 27C010 NM27C040 XX/VPP A16 A15 A12 A7 A6 A5 A4 A3 A2 A1 A0 O0 O1 O2 GND 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 32 31 30 29 28 27 26 25 24 23 22 21 20 19...


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