HD74LS641 Datasheet, PDF (5/6 Pages) Hitachi Semiconductor – Octal Bus Transceivers(non-inverted open-collector outputs)

12.8
13.2 Max
20
11
1
10
0.935 Max
1.27
*0.42 ± 0.08
0.40 ± 0.06
0.15
0.12 M
*Dimension including the plating thickness
Base material dimension
Unit: mm
10.40
+
–
0.25
0.40
1.45
0.70
+
–
0.57
0.30
0° – 8°
Hitachi Code
JEDEC
EIAJ
Weight (reference value)
FP-20DB
Conforms
—
0.52 g