CD54HC160 Datasheet, PDF (5/14 Pages) Texas Instruments – BCD SYNCHRONOUS DECADE COUNTERS

CD54HC160, CD54HC162
BCD SYNCHRONOUS DECADE COUNTERS
typical clear, preset, count, and inhibit sequences
Illustrated below is the following sequence:
1. Clear outputs to zero (CD54HC160 is asynchronous; CD54HC162 is synchronous)
2. Preset BCD to seven
3. Count to eight, nine, zero, one, two, and three
4. Inhibit
CD54HC160, CD54HC162
CLR
SCHS301 – JUNE 2000
LOAD
A
B
Data
Inputs
C
D
CLK
ENP
ENT
QA
QB
Outputs
QC
QD
RCO
7
89
Sync Preset
Clear
Async
Clear
0
1
Count
23
Inhibit
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