74HCT401 Philips, 74HCT401 Datasheet - Page 6

• Manufacturer Part Number: 74HCT401
• Description: 8-bit synchronous BCD down counter
• Manufacturer: Philips

Philips Semiconductors
DC CHARACTERISTICS FOR 74HC
For the DC characteristics see
Output capability: standard
I
AC CHARACTERISTICS FOR 74HC
GND = 0 V; t
December 1990
CC
SYMBOL
t
t
t
t
t
t
t
t
t
t
t
PHL
PHL
PHL
PLH
THL
W
W
W
rem
su
su
8-bit synchronous BCD down counter
category: MSI
/ t
/ t
/ t
/ t
TLH
PLH
PLH
PLH
r
PARAMETER
propagation delay
propagation delay
propagation delay
propagation delay
output transition time
clock pulse width
master reset pulse width
preset enable pulse width
removal time
set-up time
set-up time
= t
CP to TC
TE to TC
P
MR to TC
HIGH or LOW
LOW
PL; LOW
PL; MR to CP
PE to CP
TE to CP
n
f
, PL to TC
= 6 ns; C
L
= 50 pF
“74HC/HCT/HCU/HCMOS Logic Family Specifications”
165
33
28
150
30
26
125
25
21
50
10
9
100
20
17
175
35
30
min. typ. max. min. max. min.
96
35
28
50
18
14
110
40
32
83
30
24
9
7
6
22
8
6
30
11
9
39
14
11
8
3
2
36
13
10
50
18
14
25
300
60
51
200
40
34
240
68
58
275
55
47
75
15
13
6
T
205
41
35
190
38
33
155
31
26
65
13
11
125
25
21
220
44
37
amb
74HC
40 to 85
( C)
375
75
64
250
50
43
425
85
72
345
69
59
95
19
16
250
50
43
225
45
38
190
38
32
75
15
13
150
30
26
265
53
45
40 to 125
450
90
77
300
60
51
510
102
87
415
83
71
110
22
19
max.
.
UNIT
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
74HC/HCT40102
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
2.0
4.5
6.0
2.0
4.5
6.0
V
TEST CONDITIONS
(V)
Product specification
CC
WAVEFORMS
Fig.8
Fig.8
Fig.8
Fig.8
Figs 8 and 8
Fig.8
Fig.8
Fig.8
Fig.8
Fig.8
Fig.8