Holtek HT66F20 Manual page 279

HT66F20/HT66F30/HT66F40/HT66F50/HT66F60
HT66FU30/HT66FU40/HT66FU50/HT66FU60
A/D Flash MCU with EEPROM
20-pin SOP (300mil) Outline Dimensions
)
,
Symbol
A
B
C
C'
D
E
F
G
H
α
Symbol
A
B
C
C'
D
E
F
G
H
α
Rev. 2.50
*
+
+ 
- .
Dimensions in inch
Min.
—
—
0.0�2
—
—
—
0.004
0.0�6
0.008
0°
Dimensions in mm
Min.
—
—
0.3�
—
—
—
0.�0
0.40
0.20
0°
2�9
/
=
Nom.
0.406 BSC
0.295 BSC
— 0.020
0.504 BSC
— 0.�04
0.050 BSC
— 0.0�2
— 0.050
— 0.0�3
—
Nom.
�0.30 BSC
�.50 BSC
—
�2.80 BSC
—
�.2� BSC
—
—
—
—
0
Max.
—
—
—
—
8°
Max.
—
—
0.5�
—
2.65
—
0.30
�.2�
0.33
8°
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