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www.fairchildsemi.com

www.fairchildsemi.com

FM27C010

FM27C010

1,048,576-Bit (128K x 8) High Performance

CMOS EPROM

General Description

The FM27C010 is a high performance, 1,048,576-bit Electrically

Programmable UV Erasable Read Only Memory. It is organized

as 128K-words of 8 bits each. Its pin-compatibility with byte-wide

JEDEC EPROMs enables upgrades through 8 Mbit EPROMs.

The “Don’t Care” feature during read operations allows memory

expansions from 1M to 8M bits with no printed circuit board

changes.

The FM27C010 can directly replace lower density 28-pin EPROMs

by adding an A16 address line and V

allows higher order addresses, such as A17, A18, and A19 to be

connected without affecting the normal read operation. This

allows memory upgrades to 8M bits without hardware changes.

The FM27C010 is also offered in a 32-pin plastic DIP with the

same upgrade path.

The FM27C010 provides microprocessor-based systems exten-

sive storage capacity for large portions of operating system and

application software. Its 70 ns access time provides no-wait-state

operation with high-performance CPUs. The FM27C010 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.

Block Diagram

January 2000

The FM27C010 is manufactured using Fairchild’s advanced CMOS

AMG™ EPROM technology.

The FM27C010 is one member of a high density EPROM Family

which range in densities up to 4 Megabit.

Features

I High performance CMOS

— 70 ns access time

I Fast turn-off for microprocessor compatibility

I Simplified upgrade path

operation

I Manufacturers identification code

I Fast programming

I JEDEC standard pin configurations

— 32-pin PDIP package

— 32-pin PLCC package

— 32-pin CERDIP package

DS800032-1

© 2000 Fairchild Semiconductor Corporation

Output Enable,

Chip Enable, and

Program Logic

Y Decoder

X Decoder

Output

Buffers

1,048,576-Bit

Cell Matrix

GND

OE

PGM

CE

Address

Inputs