m74hc4538 STMicroelectronics, m74hc4538 Datasheet - Page 9

• Manufacturer Part Number: m74hc4538
• Description: Dual Retriggerable Monostable Multivibrator
• Manufacturer: STMicroelectronics

M74HC4538
Table 7.
Table 8.
1. C
Symbol
Symbol
C
consumption without load. (Refer to Test Circuit). Average operating current can be obtained by the following equation.
I
C
CC(opr)
PD
t
PD
IN
rr
is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current
= C
Input capacitance
Power dissipation
capacitance
Minimum
retrigger time
PD
AC electrical characteristics (C
Capacitive characteristics
Parameter
x V
Parameter
CC
x f
IN
(1)
+ I
CC
’ Duty/100 + Ic/2(per monostable) (I
V
2.0
4.5
6.0
2.0
4.5
6.0
(V)
CC
V
(V)
5.0
5.0
CC
Test condition
Test condition
Cx = 0.01μF
Cx = 0.1 μF
Rx = 1K
Rx = 1K
L
Ω
Ω
= 50 pF, Input t
Min
Min
T
A
cc
T
’ : Active Supply current) (Duty : %)
= 25°C
Typ
A
70
5
= 25°C
Typ
380
1.4
1.2
92
72
6
r
= t
Max
10
f
Max
= 6 ns) (continued)
Value
-40 to 85°C
Min
Value
-40 to 85°C
Min
Electrical characteristics
Max
10
Max
-55 to 125°C
Min
Min
125°C
-55 to
Max
Max
10
Unit
Unit
pF
pF
ns
μs
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