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參數(shù)資料
| 型號： | EDI88257C |
| 英文描述： | 256Kx8 Monolithic SRAM(256Kx8 CMOS單片靜態(tài)RAM（存取時間70，85，100ns）) |
| 中文描述： | 256Kx8單片的SRAM（256Kx8的CMOS單片靜態(tài)隨機(jī)存儲器（存取時間70,85,100納秒）） |
| 文件頁數(shù)： | 1/6頁 |
| 文件大?。?/td> | 187K |
| 代理商： | EDI88257C |
1
White Electronic Designs Corporation (602) 437-1520 www.whiteedc.com
HI-RELIABILITY PRODUCT
EDI88257C
256Kx8 Monolithic SRAM
FEATURES
s 256Kx8 CMOS Static
s Random Access Memory
Access Times of 70, 85, 100ns
Data Retention Function (LP Versions)
TTL Compatible Inputs and Outputs
Fully Static, No Clocks
s JEDEC Approved Pinout
32 pin Ceramic DIP, 0.6 mils wide (Package 9)
s Single +5V (
±10%) Supply Operation
September 1999 Rev. 2
PIN DESCRIPTION
A0-17
Address Inputs
W
Write Enable
E
Chip Enable
G
Output Enable
DQ0-7
Data Inputs/Outputs
VCC
Power (+5V
±10%)
VSS
Ground
NC
Not Connected
BLOCK DIAGRAM
FIG. 1
PIN CONFIGURATION
The EDI88257C is a 2 Megabit 256Kx8 bit Monolithic CMOS Static
RAM.
The 32 pin DIP pinout adheres to the JEDEC standard for the two
megabit device, and is a pin replacement for the 256Kx8 module,
EDI88257C. The device is upgradeable to the 512Kx8 SRAM, the
EDI88512C. Pin 1 becomes the higher order address.
A Low Power version, EDI88257LP, offers a data retention func-
tion for battery back-up opperation. Military product is available
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
W
A13
A8
A9
A11
G
A10
E
DQ7
DQ6
DQ5
DQ4
DQ3
NC
A16
A14
A12
A7
A6
A5
A4
A3
A2
A1
A
DQ
DQ1
DQ2
VSS
Memory Array
Address
Buffer
Address
Decoder
I/O
Circuits
A-17
DQ-7
W
E
G
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| EDI88512CA-RP | 512Kx8 Plastic Monolithic SRAM CMOS(512Kx8 CMOS塑料單片靜態(tài)RAM) |
| EDI88512CA | 512Kx8 Monolithic SRAM(512Kx8 CMOS單片靜態(tài)RAM) |
| EDI88512C | 512Kx8 Monolithic SRAM(512Kx8 CMOS單片靜態(tài)RAM) |
| EDI8C32128C | 128Kx32 SRAM Module(低功耗CMOS，512Kx32靜態(tài)RAM模塊（存取時間15，17，20，25，35，45，55ns）) |
| EDI8C32512CA | 512Kx32 SRAM Module(低功耗CMOS，128Kx32靜態(tài)RAM模塊（存取時間15，17，20，25，35，45，55ns）) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| EDI88257C/LP-C | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:SRAM |
| EDI88257C100CB | 制造商:Microsemi Corporation 功能描述:256K X 8 SRAM MONOLITHIC, 5V, 100NS, 32 DIP, TINNED LEADS, M - Bulk |
| EDI88257C100CI | 制造商:Microsemi Corporation 功能描述:256K X 8 SRAM MONOLITHIC, 5V, 100NS, 32 DIP, INDUSTRIAL SCRE - Bulk |
| EDI88257C70CB | 制造商:Microsemi Corporation 功能描述:256K X 8 SRAM MONOLITHIC, 5V, 70NS, 32 DIP, TINNED LEADS, MI - Bulk |
| EDI88257C85CB | 制造商:Microsemi Corporation 功能描述:256K X 8 SRAM MONOLITHIC, 5V, 85NS, 32 DIP, TINNED LEADS, MI - Bulk |
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