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FM27C040V90 Datasheet(PDF) 1 Page - Fairchild Semiconductor |
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FM27C040V90 Datasheet(HTML) 1 Page - Fairchild Semiconductor |
1 / 11 page 1 www.fairchildsemi.com FM27C040 Rev. A FM27C040 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 VPP during read operations allows memory expansions from 1M to 8 Mbits with no printed circuit board changes. The FM27C040 provides microprocessor-based systems exten- sive storage capacity for large portions of operating system and application software. Its 120ns access time provides high speed operation with high-performance CPUs. The FM27C040 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 FM27C040 is manufactured using Fairchild’s advanced CMOS AMG™ EPROM technology. Block Diagram January 2000 Features I High performance CMOS — 120, 150ns access time* I Simplified upgrade path —VPP is a “Don’t Care” during normal read operation I Manufacturer’s identification code I JEDEC standard pin configuration — 32-pin PDIP — 32-pin PLCC — 32-pin CERDIP DS800033-1 AMG™ is a trademark of WSI, Inc. © 1999 Fairchild Semiconductor Corporation Output Enable, Chip Enable, and Program Logic Y Decoder X Decoder Output Buffers Y Gating 4,194,304-Bit Cell Matrix Data Outputs O0 - O7 VCC GND VPP OE CE/PGM A0 - A18 Address Inputs *Note: New revision meets 70ns. Please check with factory for availability. |
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