Philips Semiconductors
74HC164; 74HCT164
8-bit serial-in, parallel-out shift register
Table 10: Dynamic characteristics for 74HCT164
…continued
GND = 0 V; t
r
= t
f
= 6 ns; C
L
= 50 pF; test circuit see
Figure 10;
unless otherwise specified
Symbol
t
W
Parameter
clock pulse width;
HIGH or LOW
Conditions
V
CC
= 4.5 V;
see
Min
27
27
24
18
4
18
Typ
-
-
-
-
-
-
Max
-
-
-
-
-
-
Unit
ns
ns
ns
ns
ns
MHz
master reset pulse width; V
CC
= 4.5 V;
see
LOW
t
rem
t
su
t
h
f
max
removal time MR to CP
set-up time
DSA and DSB to CP
hold time DSA and DSB
to CP
maximum clock pulse
frequency
V
CC
= 4.5 V;
see
V
CC
= 4.5 V;
see
V
CC
= 4.5 V;
see
V
CC
= 4.5 V;
see
1/f
max
V
I
CP input
GND
t
W
t
PHL
V
OH
Qn output
V
OL
V
M
001aac426
V
M
t
PLH
(1) 74HC164: V
M
= 50 %; V
I
= GND to V
CC
.
74HCT164: V
M
= 1.3 V; V
I
= GND to 3 V.
Fig 7. Waveforms showing the clock (CP) to output (Qn) propagation delays, the clock
pulse width, the output transition times and the maximum clock frequency
9397 750 14693
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Product data sheet
Rev. 03 — 4 April 2005
14 of 24
PHILIPS [ NXP SEMICONDUCTORS ]
