|
|
Numéro de référence | NM27C040 | ||
Description | 4 /194 /304-Bit (512K x 8) High Performance CMOS EPROM | ||
Fabricant | Fairchild | ||
Logo | |||
1 Page
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 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 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.
Block Diagram
VCC
GND
VPP
OE
CE/PGM
Output Enable,
Chip Enable, and
Program Logic
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.
Data Outputs O0 - O7
Output
Buffers
Y Decoder
Y Gating
A0 - A18
Address
Inputs
X Decoder
4,194,304-Bit
Cell Matrix
AMG™ is a trademark of WSI, Inc.
© 1999 Fairchild Semiconductor Corporation
NM27C040 Rev. C.1
1
DS010836-1
www.fairchildsemi.com
|
|||
Pages | Pages 11 | ||
Télécharger | [ NM27C040 ] |
No | Description détaillée | Fabricant |
NM27C040 | 4 /194 /304-Bit (512K x 8) High Performance CMOS EPROM | Fairchild |
US18650VTC5A | Lithium-Ion Battery | Sony |
TSPC106 | PCI Bus Bridge Memory Controller | ATMEL |
TP9380 | NPN SILICON RF POWER TRANSISTOR | Advanced Semiconductor |
www.DataSheetWiki.com | 2020 | Contactez-nous | Recherche |