Datasheet
Table Of Contents

December 1990 5
Philips Semiconductors Product specification
Dual 4-bit binary ripple counter 74HC/HCT393
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
SYMBOL PARAMETER
T
amb
(°C)
UNIT
TEST CONDITIONS
74HC
V
CC
(V)
WAVEFORMS
+25 −40 to +85 −40 to +125
min. typ. max. min. max. min. max.
t
PHL
/ t
PLH
propagation delay
nCP to nQ
0
41
15
12
125
25
21
155
31
26
190
38
32
ns 2.0
4.5
6.0
Fig.7
t
PHL
/ t
PLH
propagation delay
nQ
n
to nQ
n+1
14
5
4
45
9
8
55
11
9
70
14
12
ns 2.0
4.5
6.0
Fig.7
t
PHL
propagation delay
nMR to nQ
n
39
14
11
140
28
24
175
35
30
210
42
36
ns 2.0
4.5
6.0
Fig.8
t
THL
/ t
TLH
output transition time 19
7
6
75
15
13
95
19
16
110
22
19
ns 2.0
4.5
6.0
Fig.7
t
W
clock pulse width
HIGH or LOW
80
16
14
17
6
5
100
20
17
120
24
20
ns 2.0
4.5
6.0
Fig.7
t
W
master reset pulse
width; HIGH
80
16
14
19
7
6
100
20
17
120
24
20
ns 2.0
4.5
6.0
Fig.8
t
rem
removal time
nMR to nCP
5
5
5
3
1
1
5
5
5
5
5
5
ns 2.0
4.5
6.0
Fig.8
f
max
maximum clock pulse
frequency
6
30
35
30
90
107
5
24
28
4
20
24
MHz 2.0
4.5
6.0
Fig.7