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AS7C256B Datasheet(PDF) 7 Page - Alliance Semiconductor Corporation

Part # AS7C256B
Description  5V 32K X 8 CMOS SRAM (Common I/O)
PDF  8 Pages
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Manufacturer  ALSC [Alliance Semiconductor Corporation]
Direct Link  https://www.alliancememory.com
Logo ALSC - Alliance Semiconductor Corporation

AS7C256B Datasheet(HTML) 7 Page - Alliance Semiconductor Corporation

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AS7C256B
12/5/06; V.1.0
Alliance Memory
P. 7 of 8
®
Package diagrams
28-pin SOJ
Min
Max
in mils
A
-0.140
A1
0.025
-
A2
0.095
0.105
B
0.028 TYP
b
0.018 TYP
c
0.010 TYP
D
-0.730
E
0.245
0.285
E1
0.295
0.305
E2
0.327
0.347
e
0.050 BSC
28-pin TSOP
8×13.4 mm
Min
Max
A
–1.20
A1
0.10
0.20
A2
0.95
1.05
b
0.15
0.25
c
0.10
0.20
D
11.60
11.80
e
0.55 nominal
E
8.0 nominal
Hd
13.30
13.50
L
0.50
0.70
α
0°
5°
e
D
E1
Pin 1
b
B
A1
A2
c
E2
Seating
Plane
E2
A
e
b
E
Hd
D
c
L
A1
A
A2
α
28-pin
pin 8(21)
pin 1(7)
pin 5(8)
pin 1(22)
Note: This part is compatible with both pin numbering
conventions used by various manufacturers.
c
eA
α
Seating
b
A1
E1 E
D
e
L
S
Plane
B
A
Pin 1
28-pin PDIP
Min
Max
in mils
A
-0.180
A1
0.010
-
B
0.040
0.065
b
0.014
0.022
c
0.008
0.014
D
-1.400
E
0.295
0.320
E1
0.278
0.298
e
0.100 BSC
eA
0.330
0.380
L
0.120
0.140
a
0°
15°
S
-0.055



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