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参数资料
| 型号： | EDI88257CA |
| 英文描述： | 256Kx8 Monolithic SRAM(256Kx8 CMOS单片静态RAM（存取时间20，25，35，45，55ns）) |
| 中文描述： | 256Kx8单片的SRAM（256Kx8的CMOS单片静态随机存储器（存取时间20,25,35,45,55纳秒）） |
| 文件页数： | 1/6页 |
| 文件大小： | 121K |
| 代理商： | EDI88257CA |
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White Electronic Designs Corporation (602) 437-1520 www.whiteedc.com
HI-RELIABILITY PRODUCT
EDI88257CA
256Kx8 Monolithic SRAM
FEATURES
s Access Times of 20, 25, 35, 45, 55ns
s Data Retention Function (LPA Versions)
s TTL Compatible Inputs and Outputs
s Fully Static, No Clocks
s Organized as 256Kx8
s Commercial, Industrial and Military Temperature Ranges
s JEDEC Approved Evolutionary Pinout
32 pin Ceramic DIP, 0.6 mils wide (Package 9)
s Single +5V (
±10%) Supply Operation
May 2000 Rev. 2
PIN DESCRIPTION
I/O0-7
Data Inputs/Outputs
A0-17
Address Inputs
WE
Write Enable
CS
Chip Selects
OE
Output Enable
VCC
Power (+5V
±10%)
VSS
Ground
NC
Not Connected
BLOCK DIAGRAM
FIG. 1
PIN CONFIGURATION
The EDI88257CA is a 2 Megabit 256Kx8 bit Monolithic CMOS
Static RAM.
The 32 pin DIP pinout adheres to the JEDEC evolutionary standard
for the two megabit device. The device is upgradeable to the
512Kx8 SRAM, the EDI88512CA. Pin 1 becomes the higher order
address.
A Low Power version, EDI88257LPA, offers a data retention
function for battery back-up opperation. Military product is avail-
able compliant to Appendix A of MIL-PRF-38535.
32 DIP
TOP VIEW
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
VCC
A15
A17
WE
A13
A8
A9
A11
OE
A10
CS
I/O7
I/O6
I/O5
I/O4
I/O3
NC
A16
A14
A12
A7
A6
A5
A4
A3
A2
A1
A
I/O
I/O1
I/O2
VSS
Memory Array
Address
Buffer
Address
Decoder
I/O
Circuits
A-17
I/O-7
WE
CS
OE
相关PDF资料 |
PDF描述 |
|---|---|
| EDI88257C | 256Kx8 Monolithic SRAM(256Kx8 CMOS单片静态RAM（存取时间70，85，100ns）) |
| EDI88512CA-RP | 512Kx8 Plastic Monolithic SRAM CMOS(512Kx8 CMOS塑料单片静态RAM) |
| EDI88512CA | 512Kx8 Monolithic SRAM(512Kx8 CMOS单片静态RAM) |
| EDI88512C | 512Kx8 Monolithic SRAM(512Kx8 CMOS单片静态RAM) |
| EDI8C32128C | 128Kx32 SRAM Module(低功耗CMOS，512Kx32静态RAM模块（存取时间15，17，20，25，35，45，55ns）) |
相关代理商/技术参数 |
参数描述 |
|---|---|
| EDI88257CA/LPA-C | 制造商:未知厂家 制造商全称:未知厂家 功能描述:SRAM |
| EDI88257CA17CB | 制造商:Microsemi Corporation 功能描述:256K X 8 SRAM MONOLITHIC, 5V, 17NS, 32 DIP, TINNED LEADS, MI - Bulk |
| EDI88257CA17CI | 制造商:Microsemi Corporation 功能描述:256K X 8 SRAM MONOLITHIC, 5V, 17NS, 32 DIP, INDUSTRIAL SCREE - Bulk |
| EDI88257CA20CB | 制造商:Microsemi Corporation 功能描述:256K X 8 SRAM MONOLITHIC, 5V, 20NS, 32 DIP, TINNED LEADS, MI - Bulk |
| EDI88257CA20CI | 制造商:Microsemi Corporation 功能描述:256K X 8 SRAM MONOLITHIC, 5V, 20NS, 32 DIP, INDUSTRIAL SCREE - Bulk |
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