edi88512lpa25mm White Electronic Designs Corporation, edi88512lpa25mm Datasheet

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edi88512lpa25mm

Manufacturer Part Number
edi88512lpa25mm
Description
512kx8 Plastic Monolithic Sram Cmos
Manufacturer
White Electronic Designs Corporation
Datasheet
512Kx8 Plastic Monolithic SRAM CMOS
FEATURES
May 2004
Rev. 6
VCC
WE#
CS#
VSS
I/O0
I/O1
I/O2
I/O3
512Kx8 bit CMOS Static
Random Access Memory
• Access Times of 17, 20, 25ns
• Data Retention Function (LPA version)
• Extended Temperature Testing
• Data Retention Functionality Testing
36 lead JEDEC Approved Revolutionary Pinout
• Plastic SOJ (Package 319)
Single +5V (±10%) Supply Operation
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
10
11
12
13
14
15
16
17
18
1
2
3
4
5
6
7
8
9
Revolutionary
TOP VIEW
36pin
White Electronic Designs
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
NC
A18
A17
A16
A15
OE#
I/O7
I/O6
VSS
VCC
I/O5
I/O4
A14
A13
A12
A11
A10
NC
FIG. 1 – PIN CONFIGURATION
WE#
A
OE#
CS#
Ø-18
BLOCK DIAGRAM
Address
Buffer
1
WEDC's ruggedized plastic 512Kx8 SRAM that allows
the user to capitalize on the cost advantage of using a
plastic component while not sacrifi cing all of the reliability
available in a full military device.
Extended temperature testing is performed with the test
patterns developed for use on WEDC’s fully compliant
512Kx8 SRAMs. WEDC fully characterizes devices
to determine the proper test patterns for testing at
temperature extremes. This is critical because the
operating characteristics of device change when it is
operated beyond the commercial guarantee a device that
operates reliably in the fi eld at temperature extremes.
Users of WEDC’s ruggedized plastic benefi t from WEDC’s
extensive experience in characterizing SRAMs for use in
military systems.
WEDC ensures Low Power devices will retain data in Data
Retention mode by characterizing the devices to determine
the appropriate test conditions. This is crucial for systems
operating at -40°C or below and using dense memories
such as 512Kx8s.
WEDC’s ruggedized plastic SOJ is footprint compatible
with WEDC’s full military ceramic 36 pin SOJ.
Memory Array
Decoder
Address
White Electronic Designs Corporation • (602) 437-1520 • www.whiteedc.com
Circuits
I/O
I/O
Ø-7
EDI88512CA-RP
I/O
A
WE#
CS#
OE#
V
V
NC
0-18
CC
SS
PIN Description
0-7
Data Inputs/Outputs
Address Inputs
Write Enables
Chip Selects
Output Enable
Power (+5V ±10%)
Ground
Not Connected

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edi88512lpa25mm Summary of contents

Page 1

... WEDC’s full military ceramic 36 pin SOJ. FIG. 1 – PIN CONFIGURATION BLOCK DIAGRAM Memory Array Address Address A Ø-18 Buffer Decoder Circuits WE# CS# OE# 1 White Electronic Designs Corporation • (602) 437-1520 • www.whiteedc.com EDI88512CA-RP PIN Description I/O Data Inputs/Outputs 0-7 A Address Inputs 0-18 WE# Write Enables CS# Chip Selects OE# Output Enable V Power (+5V ± ...

Page 2

... AC TEST CONDITIONS Vcc Input Pulse Levels Input Rise and Fall Times 480Ω Input and Output Timing Levels Output Load NOTE: For t 5pF 2 White Electronic Designs Corporation • (602) 437-1520 • www.whiteedc.com EDI88512CA-RP TRUTH TABLE Mode Output WE# Standby High Z Icc2, Icc3 X ...

Page 3

... EHDX WLQZ WHZ DVWH DVEH WHQX WLZ 3 White Electronic Designs Corporation • (602) 437-1520 • www.whiteedc.com EDI88512CA-RP 20ns 25ns Min Max Min Max ...

Page 4

... WRITE CYCLE 1, WE# CONTROLLED t AVAV WS32K32-XHX t AVEH t ELEH CS# t AVEL t WLEH WE# t DVEH DATA VALID HIGH Z WRITE CYCLE 2, CS# CONTROLLED 4 White Electronic Designs Corporation • (602) 437-1520 • www.whiteedc.com EDI88512CA-RP t AVAV t AVQV t t ELQV t ELQX t GLQV t GHQZ t GLQX READ CYCLE 2 (WE# HIGH) t WHAX ...

Page 5

... DD V ≥ V -0.2V CDR ≤ 0. Data Retention Mode 4. CDR CS -0.2V DD DATA RETENTION, CS# CONTROLLED 5 White Electronic Designs Corporation • (602) 437-1520 • www.whiteedc.com EDI88512CA-RP Min Typ Max 2 – – – – – – T – AVAV 4. Units V mA ...

Page 6

... ICCDR vs. Temp 10 1 0.1 0.01 0.001 -55 25 125 Temp. (C) IDR, 2V IDR White Electronic Designs Corporation • (602) 437-1520 • www.whiteedc.com EDI88512CA-RP 25 125 Temp. (C) TAVQV vs. Temp -55 25 125 Temp. (C) Normalized curves are offered as a service to our customers. They are not to be construed as a guarantee of operating characterics ...

Page 7

... TYP. 0.021 ALL DIMENSIONS ARE IN INCHES ORDERING INFORMATION -55°C to +125°C -40°C to +85°C 0°C to +70°C 7 White Electronic Designs Corporation • (602) 437-1520 • www.whiteedc.com EDI88512CA-RP 0.395 0.405 0.360 0.435 0.380 0.445 0.027 0.148 min. max. ...

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