EDI816256CAXF44B WEDC [White Electronic Designs Corporation], EDI816256CAXF44B Datasheet

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EDI816256CAXF44B

Manufacturer Part Number
EDI816256CAXF44B
Description
256Kx16 MONOLITHIC SRAM, SMD 5962-96795
Manufacturer
WEDC [White Electronic Designs Corporation]
Datasheet
256Kx16 MONOLITHIC SRAM, SMD 5962-96795
FEATURES
August 2004
Rev. 8
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
White Electronic Designs
PIN CONFIGURATION
WE#
CS#
I/O1
I/O2
I/O3
I/O4
I/O5
I/O6
I/O7
I/O8
V
V
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
CC
SS
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
TOP VIEW
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
A17
A16
A15
OE#
UB#
LB#
I/O16
I/O15
I/O14
I/O13
V
V
I/O12
I/O11
I/O10
I/O9
NC
A14
A13
A12
A11
A10
SS
CC
1
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.
White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com
A0-17
LB# (I/O1-8)
UB# (I/O9-16)
I/O1-16
CS#
OE#
WE#
V
V
NC
CC
SS
PIN DESCRIPTION
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
EDI816256CA

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EDI816256CAXF44B Summary of contents

Page 1

White Electronic Designs 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 ...

Page 2

White Electronic Designs ABSOLUTE MAXIMUM RATINGS Parameter Voltage on any pin relative Operating Temperature T (Ambient) A Commercial Industrial Military Storage Temperature, Plastic Power Dissipation Output Current Junction Temperature NOTE: Stresses above those listed under ...

Page 3

White Electronic Designs Parameter Read Cycle Time Address Access Time Chip Enable Access Time Chip Enable to Output in Low Z (1) Chip Disable to Output in High Z (1) Output Hold from Address Change Output Enable to Output Valid ...

Page 4

White Electronic Designs t AVAV ADDRESS ADDRESS 1 t AVQV DATA I/O DATA 1 READ CYCLE 1 (WE# HIGH; OE#, CS# LOW) ADDRESS DATA OUT WRITE CYCLE - CS# CONTROLLED t AVAV ADDRESS t AVEH t ELEH CS# t AVEL ...

Page 5

White Electronic Designs DATA RETENTION CHARACTERISTICS (EDI816256LPA ONLY) Characteristic Low Power Version only Data Retention Voltage Data Retention Quiescent Current Chip Disable to Data Retention Time (1) Operation Recovery Time (1) NOTE: 1. This parameter is guaranteed by design but ...

Page 6

White Electronic Designs PACKAGE 322: 44 LEAD, CERAMIC SOJ PACKAGE 323: 44 PIN, CERAMIC FLATPACK Pin 1 0.045 0.015 August 2004 Rev. 8 0.050 Typ 1.130 1.110 DIMENSIONS ARE IN INCHES 1.130 1.110 0.515 0.505 0.019 0.015 0.050 Typ DIMENSIONS ...

Page 7

White Electronic Designs WHITE ELECTRONIC DESIGNS SRAM ORGANIZATION, 256Kx16 TECHNOLOGY CMOS Standard Power LPA = Low Power ACCESS TIME (ns) PACKAGE TYPE: F44 = 44 pin Ceramic Flatpack (Package 323) N44 = 44 lead Ceramic SOJ (Package 322) ...

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