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Manufacture Part Number Description PDF
Hitachi Semiconductor
Hitachi Semiconductor
HD74LS390 Dual Decade Counters
19.20 20.00 Max 16 9 7.40 Max 6.30

Unit: mm

1 1.3
1.11 Max

8

0.51 Min

2.54 Min 5.06 Max

7.62

2.54 ± 0.25

0.48 ± 0.10

0.25 – 0.05 0° – 15°
Hitachi Code JEDEC EIAJ Weight (reference val
HD74LS390 pdf
Renesas
Renesas
HD74LS390 Dual Decade Counters
HD74LS390

Dual Decade Counters

REJ03D0485-0400 Rev.4.00
May 10, 2006

This circuit contains eight master-slave flip-flops and additional gating to implement two individual four-bit counters. The HD7
HD74LS390 pdf





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