524,288-Bit (64K x 8) High Performance CMOS EPROM
The NM27C512 is a high performance 512K UV Erasable Electri-
cally Programmable Read Only Memory (EPROM). It is manufac-
tured using Fairchild’s proprietary CMOS AMG™ EPROM tech-
nology for an excellent combination of speed and economy while
providing excellent reliability.
The NM27C512 provides microprocessor-based systems storage
capacity for portions of operating system and application soft-
ware. Its 90 ns access time provides no wait-state operation with
high-performance CPUs. The NM27C512 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 NM27C512 is configured in the standard JEDEC EPROM
pinout which provides an easy upgrade path for systems which are
currently using standard EPROMs.
The NM27C512 is one member of a high density EPROM Family
which range in densities up to 4 Megabit.
s High performance CMOS
— 90 ns access time
s Fast turn-off for microprocessor compatibility
s Manufacturers identification code
s JEDEC standard pin configuration
— 28-pin PDIP package
— 32-pin chip carrier
— 28-pin CERDIP package
Output Enable and
Chip Enable Logic
Data Outputs O0 - O7
A0 - A15
AMG is a trademark of WSI, Inc.
© 1998 Fairchild Semiconductor Corporation