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CD54HC4538_07 Datasheet, PDF (6/20 Pages) Texas Instruments – High-Speed CMOS Logic Dual Retriggerable Precision Monostable Multivibrator
CD54HC4538, CD74HC4538, CD54HCT4538, CD74HCT4538
HCT Input Loading Table
INPUT
UNIT LOADS
All
0.5
NOTE:
360µA
mUanxitaLto2a5doiCs.∆ICC
limit
specified
in
DC
Electrical
Table,
e.g.
Prerequisite for Switching Specifications
PARAMETER
HC TYPES
Input Pulse Widths
A, B
R
Reset Recovery Time
Retrigger Time
(Figure 11)
SYMBOL VCC (V) MIN
tWH, tWL
2
80
4.5
16
6
14
tWL
2
80
4.5
16
6
14
tREC
2
5
4.5
5
6
5
trT
5
-
25oC
TYP
-
-
-
-
-
-
-
-
-
175
MAX
-
-
-
-
-
-
-
-
-
-
HCT TYPES
Input Pulse Widths
tWH, tWL
A, B
4.5
16
-
-
R
Reset Recovery Time
Retrigger Time
(Figure 11)
tWL
tREC
trT
4.5
20
-
-
4.5
5
-
-
5
-
175
-
-40oC TO 85oC
MIN TYP MAX
100
-
-
20
-
-
17
-
-
100
-
-
20
-
-
17
-
-
5
-
-
5
-
-
5
-
-
-
-
-
20
-
-
25
-
-
5
-
-
-
-
-
-55oC TO 125oC
MIN TYP MAX UNITS
120
-
24
-
20
-
120
-
24
-
20
-
5
-
5
-
5
-
-
-
-
ns
-
ns
-
ns
-
ns
-
ns
-
ns
-
ns
-
ns
-
ns
-
ns
24
-
30
-
5
-
-
-
-
ns
-
ns
-
ns
-
ns
6