AS7C256A-20JI 查看數據表（PDF） - Alliance Semiconductor
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AS7C256A-20JI Datasheet PDF : 9 Pages
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Package diagrams
28-pin SOJ
e
D
Pin 1
28-pin TSOP1
b
e
®
B
E1 E2
A1
b
c
A2
E
A
Seating
Plane
c
L
A2 A A1
D Hd
α
E
AS7C256A
28-pin SOJ
Min Max
in inches
A 0.128 0.148
A1 0.026 -
A2 0.095 0.105
B 0.026 0.032
b 0.016 0.020
c
0.007 0.010
D 0.720 0.730
E 0.255 0.275
E1 0.295 0.305
E2 0.330 0.340
e
0.050 BSC
28-pin TSOP1
8×13.4 mm
Min Max
A 1.00 1.20
A1 0.05 0.15
A2 0.91 1.05
b
0.17 0.27
c
0.10 0.20
D 11.70 11.90
e
0.55 nominal
E
7.90 8.10
Hd 13.20 13.60
L
0.50 0.70
α
0°
5°
9/24/04; v.1.2
Alliance Semiconductor
P. 7 of 9
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