IN74LS161 查看數據表（PDF） - Integral Corp.

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IN74LS161

Synchronous 4 Bit Counters; Binary, Direct Reset

Integral Corp. 

IN74LS161

NOTES A. CL includes probe and jig capacitance.

B. All diodes are 1N916 or 1N3064.

Figure 5. Test Circuit

Sequence illustrated in waveforms:

1. Reset outputs to zero.

2. Preset to binary twelve.

3. Count to thirteen, fourteen, fifteen, zero, one, and two.

4. Inhibit.

Figure 7. Timing Diagram

5

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