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HD74LS190 View Datasheet(PDF) - Renesas Electronics

Part Name
Description
View to exact match
HD74LS190 Datasheet PDF : 11 Pages
1 2 3 4 5 6 7 8 9 10
HD74LS190
Count Sequences
Load
A
B
C
D
Clock
Down/Up
Enable G
QA
QB
QC
QD
Max/Min
Ripple
Clock
7 8 9 0 12
22 1 0 9 8 7
Load
Count Up
Inhibit
Count Down
Illustrated below is the following sequence:
1. Load (preset) to BCD seven.
2. Count up to eight, nine (maximum), zero, one and two.
3. Inhibit
4. Count down to one, zero (minimum), nine, eight, and seven.
Rev.3.00, Jul.15.2005, page 6 of 10

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