
M54/M74HCT245/640/643
DIM.
A
B
D
E
e3
F
G
I
L
M
N1
P
Q
Ceramic DIP20 MECHANICAL DATA
MIN.
0.5
2.29
0.4
1.27
0.22
0.51
7.9
mm
TYP.
3.3
22.86
MAX.
25
7.8
MIN.
1.78
0.020
2.79
0.090
0.55
0.016
1.52
0.050
0.31
0.009
1.27
0.020
4° (min.), 15° (max.)
8.13
0.311
5.71
inch
TYP.
0.130
0.900
MAX.
0.984
0.307
0.070
0.110
0.022
0.060
0.012
0.050
0.320
0.225
P057H
8/11