W79E648 Datasheet, PDF (74/80 Pages) Winbond – Fast 8051 Compatible microcontroller with a redesigned Processor

68 pin PLCC
9
10
Preliminary W79E648
HD
D
1 68
61
60
E
EH
26
27
44
43
c
L
0
Seating Plane
2
AA
e
b
A¹
b1
y
GD
Symbol
A
A1
A2
b1
b
c
D
E
e
GD
GE
HD
HE
L
y
0
Dimension in inch
Min Nom Max
0.185
0.020
0.143 0.148 0.153
0.026 0.028 0.032
0.016 0.018 0.022
0.006 0.008 0.012
0.949 0.954 0.959
0.949 0.954 0.959
0.044 0.050 0.056
0.895 0.915 0.935
0.895 0.915 0.935
0.980 0.990 1.000
0.980 0.990 1.000
0.090 0.100 0.110
0.004
0
10
Dimension in mm
Min Nom Max
4.70
0.51
3.63
3.76
3.89
0.66
0.71
0.81
0.41
0.46
0.56
0.15
0.20
0.30
24.10 24.23 24.36
24.10 24.23 24.36
1.12
1.27
1.42
22.73 23.24 23.75
22.73 23.24 23.75
24.90 25.15 25.40
24.90 25.15 25.40
2.29
2.54
2.79
0.10
0
10
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