WS1M8-20CM WEDC [White Electronic Designs Corporation], WS1M8-20CM Datasheet

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WS1M8-20CM

Manufacturer Part Number
WS1M8-20CM
Description
2x512Kx8 DUALITHICTM SRAM
Manufacturer
WEDC [White Electronic Designs Corporation]
Datasheet
FEATURES
White Electronic Designs Corp. reserves the right to change products or specifi cations without notice.
July 2004
Rev. 5
2x512Kx8 DUALITHIC™ SRAM
NOTE:
1. CS1# and CS2# are used to select the lower and upper 512Kx8 of the device. CS1# and CS2# must not be enabled at the same time.
PIN CONFIGURATION FOR WS1M8-XDJX
Access Times 17, 20, 25, 35, 45, 55ns
Revolutionary, Center Power/Ground Pinout
Packaging:
• 32 pin, Her met ic Ceramic DIP (Package 300)
• 36 lead Ceramic SOJ (Package 100)
• 36 lead Ceramic Flatpack (Package 226)
A0-18
I/O0-7
CS1-2#
OE#
WE#
V
GND
White Electronic Designs
CS1#
CC
GND
WE#
I/O0
I/O1
V
I/O2
I/O3
A 0 - 1 8
C S 1 #
C S 2 #
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
CC
W E #
AND WS1M8-XFX
O E #
Pin Description
Block Diagram
(1)
(1)
TOP VIEW
36 CSOJ
36 FLATPACK
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
Address Inputs
Data Input/Output
Chip Selects
Output Enable
Write Enable
+5.0V Power
Ground
512K x 8
I / O 0 - 7
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
512K x 8
NC
A18
A17
A16
A15
OE#
I/O7
I/O6
GND
V
I/O5
I/O4
A14
A13
A12
A11
A10
CS2#
CC
1
PIN CONFIGURATION FOR WS1M8-XCX
Organized as two banks of 512Kx8
Commercial, Industrial and Military Temperature Ranges
5 Volt Power Supply
Low Power CMOS
TTL Compatible Inputs and Outputs
White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com
A0-18
I/O0-7
CS1-2#
WE#
V
GND
CC
A 0 - 1 8
C S
C S
GND
W E #
I/O0
I/O1
I/O2
A18
A16
A14
A12
A7
A6
A5
A4
A3
A2
A1
A0
1 #
2 #
Pin Description
Block Diagram
(1)
(1)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
TOP VIEW
32 DIP
Address Inputs
Data Input/Output
Chip Selects
Write Enable
+5.0V Power
Ground
512K x 8
I / O 0 - 7
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
WS1M8-XXX
512K x 8
V
A15
A17
WE#
A13
A8
A9
A11
CS2#
A10
CS1#
I/O7
I/O6
I/O5
I/O4
I/O3
CC

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WS1M8-20CM Summary of contents

Page 1

... FEATURES Access Times 17, 20, 25, 35, 45, 55ns Revolutionary, Center Power/Ground Pinout Packaging: • 32 pin, Her met ic Ceramic DIP (Package 300) • 36 lead Ceramic SOJ (Package 100) • 36 lead Ceramic Flatpack (Package 226) PIN CONFIGURATION FOR WS1M8-XDJX AND WS1M8-XFX 36 CSOJ 36 FLATPACK TOP VIEW A0 1 ...

Page 2

... Output High Voltage V OH NOTE: DC test conditions -0. 0. OE# is internally tied to the GND and not accessible on the WS1M8-XCXX. White Electronic Designs Corp. reserves the right to change products or specifi cations without notice. July 2004 Rev. 5 Min Max Unit CS# OE# -55 +125 ° ...

Page 3

... Chip Select to Output in Low Z Output Enable to Output in Low Z Chip Disable to Output in High Z Output Disable to Output in High Z 1. This parameter is guaranteed by design but not tested. 2. OE# is internally tied to the GND and not accessible on the WS1M8-XCXX. Parameter Write Cycle Write Cycle Time Chip Select to End of Write ...

Page 4

... DATA I/O PREVIOUS DATA VALID READ CYCLE 1 (CS NOTE: OE# is internally tied to the GND and not accessible on the WS1M8-XCXX. ADDRESS DATA I/O ADDRESS DATA I/O White Electronic Designs Corp. reserves the right to change products or specifi cations without notice. July 2004 Rev. 5 TIMING WAVEFORM – ...

Page 5

... TYP 3.18 (0.125) MAX 0.127 (0.005) ± 0.05 (0.002) 5 White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com WS1M8-XXX 4.76 (0.184) MAX 0.89 (0.035) Radius TYP 9.55 (0.376) ± 0.25 (0.010) 1.27 (0.050) ± 0.25 (0.010) PIN 1 IDENTIFIER 12.7 (0.500) ± 0.5 (0.020) 5.1 (0.200) ± ...

Page 6

... Lead Ceramic Flatpack (Package 226) ACCESS TIME (ns) IMPROVEMENT MARK: Blank = Standard Power ORGANIZATION, two banks of 512K x 8 SRAM WHITE ELECTRONIC DESIGNS CORP. 6 White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com WS1M8-XXX 15.04 (0.592) ± 0.3 (0.012) 4.34 (0.171) ± 0.79 (0.031) -40°C to +85°C 0°C to +70°C ...

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