Datasheet
December 1990 10
Philips Semiconductors Product speciļ¬cation
Johnson decade counter with 10 decoded outputs 74HC/HCT4017
AC WAVEFORMS
Fig.7 Waveforms showing the hold and set-up times for CP
0
to CP
1
and CP
1
to CP
0
.
(1) HC : V
M
= 50%; V
I
= GND to V
CC
.
HCT: V
M
= 1.3 V; V
I
= GND to 3 V.
Fig.8 Waveforms showing the minimum pulse widths for CP
0
, CP
1
and MR inputs; the recovery time for MR and
the propagation delays for MR to Q
n
and Q
5-9
outputs.
Conditions:
CP
1
= LOW while CP
0
is triggered on a LOW-to-HIGH
transition and CP
0
= HIGH, while CP
1
is triggered on a
HIGH-to-LOW transition.
(1) HC : V
M
= 50%; V
I
= GND to V
CC
.
HCT: V
M
= 1.3 V; V
I
= GND to 3 V.