Philips Semiconductors
Product specification
8-bit serial-in/parallel-out shift register
DC CHARACTERISTICS FOR 74HC
For the DC characteristics see
“74HC/HCT/HCU/HCMOS Logic Family Specifications”.
Output capability: standard
I
CC
category: MSI
AC CHARACTERISTICS FOR 74HC
GND = 0 V; t
r
= t
f
= 6 ns; C
L
= 50 pF
T
amb
(°C)
74HC
SYMBOL PARAMETER
min.
t
PHL
/ t
PLH
propagation delay
CP to Q
n
propagation delay
MR to Q
n
output transition
time
clock pulse width
HIGH or LOW
master reset pulse
width; LOW
removal time
MR to CP
set-up time
D
sa
, D
sb
to CP
hold time
D
sa
, D
sb
to CP
maximum clock
pulse frequency
80
16
14
60
12
10
60
12
10
60
12
10
4
4
4
6
30
35
+25
typ.
41
15
12
39
14
11
19
7
6
14
5
4
17
6
5
17
6
5
8
3
2
−6
−2
−2
23
71
85
max.
170
34
29
140
28
24
75
15
13
100
20
17
75
15
13
75
15
13
75
15
13
4
4
4
5
24
28
−40
to
+85
min.
max.
215
43
37
175
35
30
95
19
16
120
24
20
90
18
15
90
18
15
90
18
15
4
4
4
4
20
24
−40
to
+125
min.
max.
255
51
43
210
42
36
110
22
19
ns
UNIT
74HC/HCT164
TEST CONDITIONS
V
CC
WAVEFORMS
(V)
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
Fig.6
t
PHL
ns
Fig.6
t
THL
/ t
TLH
ns
Fig.6
t
W
ns
Fig.6
t
W
ns
Fig.6
t
rem
ns
Fig.6
t
su
ns
Fig.6
t
h
ns
Fig.6
f
max
MHz
Fig.6
December 1990
5
PHILIPS [ NXP SEMICONDUCTORS ]
