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EDI816256CA fiches techniques PDF

White Electronic Designs Corporation - 256Kx16 MONOLITHIC SRAM

Numéro de référence EDI816256CA
Description 256Kx16 MONOLITHIC SRAM
Fabricant White Electronic Designs Corporation 
Logo White Electronic Designs Corporation 





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EDI816256CA fiche technique
White Electronic Designs
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256Kx16 MONOLITHIC SRAM, SMD 5962-96795
FEATURES
256Kx16 bit CMOS Static
Random Access Memory
• Access Times of 17, 20, 25, 35ns
• Data Retention Function (LPA version)
• TTL Compatible Inputs and Outputs
• Fully Static, No Clocks
44 lead JEDEC Approved Revolutionary Pinout
• Ceramic SOJ (Package 322)
• Ceramic Flatpack (Package 323)
Single +5V (±10%) Supply Operation
The EDI816256CA is a 4 megabit Monolithic CMOS Static
RAM.
The EDI816256CA uses 16 common input and output
lines and has an output enable pin which operates faster
than address access time at read cycle. The device allows
upper and lower byte access by use of the data byte control
pins (LB#, UB#).
The devices are available in a fully hermetic 44 lead
ceramic SOJ and a 44 lead Ceramic Flatpack. The Ceramic
SOJ is pin for pin compatible with the commercially
available plastic SOJ. This allows the user the luxury of
designing a board that can be used for both the commercial
and military market.
A Low Power version with Data Retention (EDI816256LPA)
is also available for battery backed applications. Military
product is available compliant to Appendix A of MIL-PRF-
38535.
PIN CONFIGURATION
TOP VIEW
A0
A1
A2
A3
A4
CS#
I/O1
I/O2
I/O3
I/O4
VCC
VSS
I/O5
I/O6
I/O7
I/O8
WE#
A5
A6
A7
A8
A9
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
44 A17
43 A16
42 A15
41 OE#
40 UB#
39 LB#
38 I/O16
37 I/O15
36 I/O14
35 I/O13
34 VSS
33 VCC
32 I/O12
31 I/O11
30 I/O10
29 I/O9
28 NC
27 A14
26 A13
25 A12
24 A11
23 A10
August 2004
Rev. 8
PIN DESCRIPTION
A0-17
LB# (I/O1-8)
UB# (I/O9-16)
I/O1-16
CS#
OE#
WE#
VCC
VSS
NC
Address Inputs
Lower-Byte Control (I/O1-8)
Upper-Byte Control (I/O9-16)
Data Input/Output
Chip Select
Output Enable
Write Enable
+5.0V Power
Ground
No Connection
1 White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com

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