Datasheet

December 1990 9
Philips Semiconductors Product specification
8-stage shift-and-store bus register 74HC/HCT4094
AC CHARACTERISTICS FOR 74HCT
GND = 0 V; t
r
= t
f
= 6 ns; C
L
= 50 pF
SYMBOL PARAMETER
T
amb
(°C)
UNIT
TEST CONDITIONS
74HCT
V
CC
(V)
WAVEFORMS
+25 −40 to +85 −40 to +125
min. typ. max. min. max. min. max.
t
PHL
/ t
PLH
propagation delay
CP to QS
1
23 39 49 59 ns 4.5 Fig.7
t
PHL
/ t
PLH
propagation delay
CP to QS
2
21 36 45 54 ns 4.5 Fig.7
t
PHL
/ t
PLH
propagation delay
CP to QP
n
25 43 54 65 ns 4.5 Fig.7
t
PHL
/ t
PLH
propagation delay
STR to QP
n
22 39 49 59 ns 4.5 Fig.8
t
PZH
/ t
PZL
3-state output enable time
OE to QP
n
20 35 44 53 ns 4.5 Fig.9
t
PHZ
/ t
PLZ
3-state output disable time
OE to QP
n
21 35 44 53 ns 4.5 Fig.9
t
THL
/ t
TLH
output transition time 7 15 19 22 ns 4.5 Fig.7
t
W
clock pulse width
HIGH or LOW
16 7 20 24 ns 4.5 Fig.7
t
W
strobe pulse width
HIGH
16 5 20 24 ns 4.5 Fig.8
t
su
set-up time
D to CP
10 4 13 15 ns 4.5 Fig.10
t
su
set-up time
CP to STR
20 9 25 30 ns 4.5 Fig.8
t
h
hold time
D to CP
4 0 4 4 ns 4.5 Fig.10
t
h
hold time
CP to STR
0 −4 0 0 ns 4.5 Fig.8
f
max
maximum clock pulse
frequency
30 80 24 20 MHz 4.5 Fig.7