HT1620 查看數據表（PDF） - Holtek Semiconductor
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HT1620 Datasheet PDF : 21 Pages
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PATENTED
48-pin LQFP (7mm´7mm) Outline Dimensions
C
D
36
25
HT1621/HT1621G
H
G
I
37
24
AB
48
Symbol
A
B
C
D
E
F
G
H
I
J
K
a
Symbol
A
B
C
D
E
F
G
H
I
J
K
a
1
Min.
0.350
0.272
0.350
0.272
¾
¾
0.053
¾
¾
0.018
0.004
0°
Min.
8.90
6.90
8.90
6.90
¾
¾
1.35
¾
¾
0.45
0.10
0°
F
E
13
K
12
Dimensions in inch
Nom.
¾
¾
¾
¾
0.020
0.008
¾
¾
0.004
¾
¾
¾
Dimensions in mm
Nom.
¾
¾
¾
¾
0.50
0.20
¾
¾
0.10
¾
¾
¾
a
J
Max.
0.358
0.280
0.358
0.280
¾
¾
0.057
0.063
¾
0.030
0.008
7°
Max.
9.10
7.10
9.10
7.10
¾
¾
1.45
1.60
¾
0.75
0.20
7°
Rev. 2.90
18
November 9, 2010
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