M54HCT74KT View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
'M54HCT74KT' PDF : 37 Pages View PDF
Package information
M54HCxxx, M54HCTxxx
Figure 9. Ceramic DIL-24 package outline
1. The upper metallic lid is not electrically connected to any pins, nor to the IC die inside the package.
Connecting unused pins or the metallic lid to ground or to the power supply will not affect the electrical
characteristics.
Symbol
Table 14. Ceramic DIL-24 package mechanical data
Dimensions (mm)
Min.
Typ.
Max.
A
2.159
1.931
2.387
a1
1.270
1.016
1.524
a2
.307
.274
.340
B
1.270
b1
0.457
0.407
0.507
b2
.254
0.229
0.304
C
2.466
2.205
2.727
D
30.48
30.17
30.78
E
15.24
14.98
15.49
e
2.540
2.410
2.670
e3
27.94
27.81
28.06
F
15.11
14.85
15.36
K
12.80
12.60
13.00
K1
12.80
12.60
13.00
L
3.300
3.000
3.800
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DocID17367 Rev 4
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