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參數(shù)資料
| 型號(hào)： | EDI8F8512C |
| 英文描述： | 512Kx8 Static RAM CMOS, Module(512Kx8 CMOS靜態(tài)RAM模塊) |
| 中文描述： | 512Kx8靜態(tài)RAM的CMOS模塊（512Kx8的CMOS靜態(tài)內(nèi)存模塊） |
| 文件頁(yè)數(shù)： | 1/8頁(yè) |
| 文件大?。?/td> | 214K |
| 代理商： | EDI8F8512C |
EDI8F8512C
512Kx8 Static Ram
1
EDI8F8512C Rev. 12 7/97 ECO#9922
Pin Configurations and Block Diagram
Features
512Kx8 bit CMOS Static
Random Access Memory
Access Times 20 thru 100ns
Data Retention Function (EDI8F8512LP )
TTL Compatible Inputs and Outputs
Fully Static, No Clocks
High Density Packaging
36 Pin SIP, No. 63
32 Pin DIP, JEDEC Pinout, No. 91 (55-100ns)
32 Pin DIP, JEDEC Pinout, No. 183 (20-35ns)
Single +5V (±10%) Supply Operation
20-55ns
N
VC
W
DQ
A
A2
A
A4
VS
DQ
A1
A
A1
N
E
A1
A
DQ
VS
A
DQ
A1
VC
G
1
2
3
4
5
6
7
8
9
10
1
12
1
17
18
19
20
2
22
23
24
25
26
27
28
29
30
3
32
33
34
35
36
A18
A16
A14
A12
A7
A6
A5
A4
A3
A2
A1
A
DQ
DQ1
DQ2
VSS
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
Pin Names
A-A18
Address Inputs
E
Chip Enable
W
Write Enable
G
Output Enable
DQ-DQ7
Common Data Input/Output
VCC
Power (+5V±10%)
VSS
Ground
NC
No Connection
512Kx8 Static RAM
CMOS,Module
The EDI8F8512C is a 4096K bit CMOS Static RAM based
on four 128Kx8 or 256Kx4 (high speed) Static RAMs
mounted on a multi-layered epoxy laminate (FR4) sub-
strate.
FunctionalequivalencetothemonolithicfourmegabitStatic
RAM is achieved by utilization of an on-board decoder that
interprets the higher order address(es) to select one of
the128Kx8 or 256Kx4 Static RAMs.
The 32 pin DIP pinout adheres to the JEDEC standard for
the four megabit device, to ensure compatibility with future
monolithics.
A low power version with data retention (EDI8F8512LP) is
also available.
AllinputsandoutputsareTTLcompatibleandoperatefrom
a single 5V supply. Fully asynchronous, the EDI8F8512C
requires no clocks or refreshing for operation.
Electronic Designs Incorporated
One Research Drive Westborough, MA 01581USA 508-366-5151 FAX 508-836-4850
Electronic Designs Europe Ltd. Shelley House, The Avenue Lightwater, Surrey GU18 5RF
United Kingdom 01276 472637 FAX: 01276 473748
A-A17
W
G
A18
E
DECODER
DQ-DQ3
256Kx4
DQ4-DQ7
A-A16
W
G
A17-A18
E
DECODER
DQ-DQ7
128Kx8
55-100ns
20-35ns
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