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7C256 Datasheet(PDF) 7 Page - Alliance Semiconductor Corporation

Part # 7C256
Description  High Performance 32Kx8 CMOS SRAM
PDF  8 Pages
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Manufacturer  ALSC [Alliance Semiconductor Corporation]
Direct Link  https://www.alliancememory.com
Logo ALSC - Alliance Semiconductor Corporation

7C256 Datasheet(HTML) 7 Page - Alliance Semiconductor Corporation

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AS7C256
AS7C256L
7
TYPICAL DC AND AC CHARACTERISTICS
Supply voltage (V)
4.0
5.5
6.0
5.0
4.5
0.0
0.2
0.6
0.8
0.4
1.0
1.2
1.4
Normalized supply current ICC, ISB
Ambient temperature (°C)
–55
80
125
35
–10
0.0
0.2
0.6
0.8
0.4
1.0
1.2
1.4
Normalized supply current ICC, ISB
vs. ambient temperature Ta
vs. supply voltage VCC
ICC
ISB
ICC
ISB
Ambient temperature (°C)
-55
80
125
35
-10
0.2
1
0.04
5
25
625
Normalized supply current ISB1
vs. ambient temperature Ta
VCC = 5.0V
Supply voltage (V)
4.0
5.5
6.0
5.0
4.5
0.8
0.9
1.1
1.2
1.0
1.3
1.4
1.5
Normalized access time tAA
Ambient temperature (°C)
–55
80
125
35
–10
0.8
0.9
1.1
1.2
1.0
1.3
1.4
1.5
Normalized access time tAA
Cycle frequency (MHz)
075
100
50
25
0.0
0.2
0.6
0.8
0.4
1.0
1.2
1.4
Normalized supply current ICC
vs. ambient temperature Ta
vs. cycle frequency 1/tRC, 1/tWC
vs. supply voltage VCC
VCC = 5.0V
Ta = 25°C
VCC = 5.0V
Ta = 25°C
Output voltage (V)
0.0
3.75
5.0
2.5
1.25
0
20
60
80
40
100
120
140
Output source current IOH
Output voltage (V)
0.0
3.75
5.0
2.5
1.25
Output sink current IOL
vs. output voltage VOL
vs. output voltage VOH
0
20
60
80
40
100
120
140
VCC = 5.0V
Ta = 25°C
VCC = 5.0V
Ta = 25°C
Capacitance (pF)
0
750
1000
500
250
0
5
15
20
10
25
30
35
Typical access time change
∆t
AA
vs. output capacitive loading
VCC = 4.5V
AS7C256-11



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