mm74hc4538 Fairchild Semiconductor, mm74hc4538 Datasheet - Page 6

• Manufacturer Part Number: mm74hc4538
• Description: Dual Retriggerable Monostable Multivibrator
• Manufacturer: Fairchild Semiconductor

www.fairchildsemi.com
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
PLH
PHL
PHL
PLH
W
PLH
PHL
PHL
PLH
TLH
r
W
REC
WQ
WQ
DC Electrical Characteristics
Note 5: The device must be set up with 3 steps before measuring I
AC Electrical Characteristics
V
AC Electrical Characteristics
C
, t
CC
L
f
Symbol
, t
Symbol
THL
50 pF, t
5V, T
A
r
Maximum Propagation
Delay A, or B to Q
Maximum Propagation
Delay A, or B to Q
Maximum Propagation
Delay Clear to Q
Maximum Propagation
Delay Clear to Q
Maximum Output
Rise and Fall
Time
Maximum Input
Rise and Fall
Time (Reset only)
Minimum Pulse Width
A, B, Clear
Minimum Recovery
Time, Clear
Inactive to A or B
Output Pulse Width
Output Pulse Width
25 C, C
Maximum Propagation Delay A, or B to Q
Maximum Propagation Delay A, or B to Q
Maximum Propagation Delay Clear to Q
Maximum Propagation Delay Clear to Q
Minimum Pulse Width A, B or Clear
t
f
6 ns (unless otherwise specified)
Parameter
L
15 pF, t
Parameter
r
t
f
C
R
C
R
X
X
X
X
6 ns
12 pF
1 k
100 pF
10 k
Conditions
1.
2.
3.
(Continued)
Clear
H
H
H
IN
Min
Max
Min
Max
:
6
2.0V
4.5V
6.0V
2.0V
4.5V
6.0V
2.0V
4.5V
6.0V
2.0V
4.5V
6.0V
2.0V
4.5V
6.0V
2.0V
4.5V
6.0V
2.0V
4.5V
6.0V
2.0V
4.5V
6.0V
3.0V
5.0V
3.0V
5.0V
3.0V
5.0V
3.0V
5.0V
V
Conditions
A
H
CC
L
L
Typ
100
110
100
110
283
147
283
147
1.2
1.0
1.2
1.0
25
21
28
23
25
21
28
23
30
10
8
5
T
B
H
H
H
A
25 C
1000
250
275
250
275
500
400
190
120
400
185
50
43
55
47
50
43
55
47
75
15
13
80
16
14
Guaranteed Limits
0
0
0
T
A
40 to 85 C T
1000
315
347
315
347
500
400
101
Typ
63
54
69
59
63
54
69
59
95
19
16
20
17
23
23
0
0
0
26
26
10
A
Limit
45
50
45
50
16
55 to 125 C
1000
373
410
373
410
110
500
400
119
75
63
82
70
75
63
82
70
22
19
24
20
0
0
0
Units
ns
ns
ns
ns
ns
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
s
s
s
s