Philips Semiconductors

Product specification

74ABT74

Dual D-type flip-flop

1995 Sep 22

4

AC WAVEFORMS

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

VM

VM

CPn

VM

VM

VM

VM

VM

VM

tsu(H)

th(H)

Dn

Qn

VM

tw(H)

1/fmax

tsu(L)

th(L)

VM

VM

tPLH

Qn

tw(L)

tPHL

tPHL

tPLH

SF00049

Waveform 1.

Propagation delay for data to output,

data setup time and hold times, and clock width,

and maximum clock frequency

SDn or RDn

VM

VM

trec

CPn

SF00051

Waveform 2.

Recovery time for set or reset to clock

VM

VM

RDn

VM

Qn

VM

VM

VM

tPLH

Qn

tw(L)

tPHL

tPHL

tPLH

SDn

VM

VM

tw(L)

SF00050

Waveform 3.

Propagation delay for set and reset to output,

set and reset pulse width

OUTPUT N

same part

INPUT

SA00381

OUTPUT

MIN

MIN

MAX

MAX

Waveform 4. Common edge skew