MC74HC160 Просмотр технического описания (PDF) - Motorola => Freescale

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MC74HC160

Presettable Counters

Motorola => Freescale 

MC54/74HC160 MC54/74HC162

HC160, HC162 TIMING DIAGRAM

Sequence illustrated in waveforms:

1. Reset outputs to zero.

2. Preset to BCD seven.

3. Count to eight, nine, zero, one, two, and three.

4. Inhibit.

RESET (HC160)

RESET (HC162)

LOAD

(ASYNCHRONOUS)

(SYNCHRONOUS)

P0

PRESET P1

DATA

INPUTS P2

P3

CLOCK (HC160)

CLOCK (HC162)

COUNT

ENABLES

ENABLE P

ENABLE T

Q0

Q1

OUTPUTS

Q2

Q3

RIPPLE

CARRY

OUT

7 89 0 1 2

3

COUNT

RESET LOAD

INHIBIT

MOTOROLA

8

High–Speed CMOS Logic Data

DL129 — Rev 6

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