74AHC74 Просмотр технического описания (PDF) - Nexperia B.V. All rights reserved

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74AHC74

Dual D-type flip-flop with set and reset; positive-edge trigger

Nexperia B.V. All rights reserved 

Nexperia

74AHC74; 74AHCT74

Dual D-type flip-flop with set and reset; positive-edge trigger

10.1. Waveforms

VI

nD input

VM

GND

VI

th

t su

1/fmax

th

tsu

nCP input

GND

VOH

VM

tW

tPHL

t PLH

nQ output

VM

VOL

VOH

Fig. 7.

nQ output

VM

VOL

tPLH

t PHL

mna422

Measurement points are given in Table 8.

The shaded areas indicate when the input is permitted to change for predictable output performance.

VOL and VOH are typical voltage output levels that occur with the output load.

Clock pulse width, maximum frequency, set-up times, hold times and input to output propagation delays

VI

nCP input

VM

GND

t rec

VI

nSD input

VM

GND

tW

tW

VI

nRD input

VM

GND

VOH

t PLH

t PHL

nQ output

VM

VOL

VOH

Fig. 8.

nQ output

VM

VOL

t PHL

t PLH

mna423

Measurement points are given in Table 8.

VOL and VOH are typical voltage output levels that occur with the output load.

Set and reset pulse widths, recovery time and input to output propagation delays

74AHC_AHCT74

Product data sheet

All information provided in this document is subject to legal disclaimers.

Rev. 8 — 22 April 2020

© Nexperia B.V. 2020. All rights reserved

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