EDI88512C WEDC [White Electronic Designs Corporation], EDI88512C Datasheet

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EDI88512C

Manufacturer Part Number
EDI88512C
Description
512Kx8 Monolithic SRAM, CMOS
Manufacturer
WEDC [White Electronic Designs Corporation]
Datasheet

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512Kx8 Monolithic SRAM, CMOS
FEATURES
White Electronic Designs Corp. reserves the right to change products or specifi cations without notice.
February 2001
Rev. 11
512Kx8 bit CMOS Static
Random Access Memory
• Access Times of 70, 85, 100ns
• Data Retention Function (LP version)
• TTL Compatible Inputs and Outputs
• Fully Static, No Clocks
32 lead JEDEC Approved Evolutionary Pinout
• Ceramic Sidebrazed 600 mil DIP (Package 9)
• Ceramic SOJ (Package 140)
Single +5V (±10%) Supply Operation
FIGURE 1 – PIN CONFIGURATION
I/O0
I/O1
I/O2
A18
A16
A14
A12
Vss
A7
A6
A5
A4
A3
A2
A1
A0
10
11
12
13
14
15
16
White Electronic Designs
1
2
3
4
5
6
7
8
9
Evolutionary
TOP VIEW
32 pin
32 PIN
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
Vcc
A15
A17
WE#
A13
A8
A9
A11
OE#
A10
CS#
I/O7
I/O6
I/O5
I/O4
I/O3
1
The EDI88512C is a 4 megabit Monolithic CMOS Static
RAM.
The 32 pin DIP pinout adheres to the JEDEC evolutionary
standard for the four megabit device. Both the DIP and
CSOJ packages are pin for pin upgrades for the single chip
enable 128K x 8, the EDI88128C. Pins 1 and 30 become
the higher order addresses.
A Low Power version with Data Retention (EDI88512LP)
is also available for battery backed applications. Military
product is available compliant to Appendix A of MIL-PRF-
38535.
* This product is subject to change without notice.
A
WE#
OE#
CS#
0-18
White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com
I/O0-7
A0-18
WE#
CS#
OE#
V
V
NC
PIN DESCRIPTION
BLOCK DIAGRAM
CC
SS
Address
Buffer
Data Inputs/Outputs
Address Inputs
Write Enables
Chip Selects
Output Enable
Power (+5V ±10%)
Ground
Not Connected
Memory Array
Decoder
Address
EDI88512C
Circuits
I/O
I/O
0-7

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EDI88512C Summary of contents

Page 1

... White Electronic Designs Corp. reserves the right to change products or specifi cations without notice. February 2001 Rev. 11 The EDI88512C megabit Monolithic CMOS Static RAM. The 32 pin DIP pinout adheres to the JEDEC evolutionary standard for the four megabit device. Both the DIP and CSOJ packages are pin for pin upgrades for the single chip enable 128K x 8, the EDI88128C ...

Page 2

... 2.1mA -1.0mA OH OH Figure 2 Vcc 480Ω Q 5pF 255Ω 2 White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com EDI88512C TRUTH TABLE CS# WE# Mode Output H X Standby High Output Deselect High Read Data Out L L Write ...

Page 3

... WHDX EHDX WLQZ WHZ DVWH DVEH WHQX WLZ 3 EDI88512C 85ns 100ns Min Max Min Max 85 100 85 100 85 100 85ns 100ns Min Max Min Max ...

Page 4

... WRITE CYCLE 1, WE# CONTROLLED t AVAV 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.wedc.com EDI88512C t AVAV t AVQV t t ELQV EHQZ t ELQX t GLQV t GHQZ t GLQX READ CYCLE 2 (WE# HIGH) t WHAX ...

Page 5

... V ≥ V -0.2V 0 CDR ≤ 0. AVAV DATA RETENTION MODE 4.5V 4. CDR CS -0.2V CC DATA RETENTION, CS# CONTROLLED 5 White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com EDI88512C Typ Max Units – – V – 185 µA – – ns – – ...

Page 6

... ALL DIMENSIONS ARE IN INCHES PACKAGE 140: 32 LEAD CERAMIC SOJ 0.010 0.006 0.444 0.430 0.155 0.106 ALL DIMENSIONS ARE IN INCHES 6 White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com EDI88512C 0.620 0.600 0.155 0.115 0.600 NOM 0.019 0.015 0.050 TYP 0.379 ...

Page 7

... White Electronic Designs Corp. reserves the right to change products or specifi cations without notice. February 2001 Rev. 11 ORDERING INFORMATION EDI 8 8 512 -55°C to +125°C -40°C to +85°C 0°C to +70°C 7 White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com EDI88512C ...

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