1997 Nov 25

7

Philips Semiconductors

Product specification

Dual JK flip-flop with set and reset;

positive-edge trigger

74HC/HCT109

AC WAVEFORMS

Fig.6

Waveforms showing the clock (nCP) to output (nQ, nQ) propagation delays, the clock pulse width, the nJ,

nK to nCP set-up, the nCP to nJ, nK hold times, the output transition times and the maximum clock pulse

frequency.

The shaded areas indicate when the

input is permitted to change for

predictable output performance.

handbook, full pagewidth

MBK216

VM

(1)

nCP INPUT

nSD INPUT

nRD INPUT

nQ OUTPUT

nQ OUTPUT

VM

(1)

VM

(1)

VM

(1)

VM

(1)

tW

trem

trem

tW

tPHL

tPLH

tPLH

tPHL

Fig.7