m74hc123 STMicroelectronics, m74hc123 Datasheet - Page 7

• Manufacturer Part Number: m74hc123
• Description: Dual Retriggerable Monostable Multivibrator
• Manufacturer: STMicroelectronics

AC ELECTRICAL CHARACTERISTICS (C
CAPACITIVE CHARACTERISTICS
1) C
load. (Refer to Test Circuit). Average operating current can be obtained by the following equation. I
+ Ic/2(per monostable) (I
t
t
t
t
Symbol
Symbol
TLH
PLH
PLH
PLH
t
WOUT
t
t
t
t
C
PD
WOUT
W(H)
W(L)
W(L)
C
t
PD
rr
IN
t
t
t
t
is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without
THL
PHL
PHL
PHL
Output Transition
Time
Propagation Delay
Time
Propagation Delay
Time(CLR
TRIGGER - Q, Q)
Propagation Delay
Time
(CLR - Q, Q)
Output Pulse Width
Output Pulse Width
Error Between
Circuits in Same
Package
Minimum Pulse
Width
Minimum Pulse
Width (CLR)
Minimum Retrigger
Time
Input Capacitance
Power Dissipation
Capacitance (note
1)
(A, B - Q, Q)
Parameter
Parameter
cc
’ : Active Supply current) (Duty : %)
V
V
(V)
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)
5.0
5.0
CC
CC
Test Condition
Test Condition
Rx = 100K
Rx = 100K
Cx = 100 pF
Cx = 100 pF
Rx = 10K
Rx = 10K
Cx = 0.1 F
Cx = 0.1 F
L
= 50 pF, Input t
Min.
Min.
T
T
A
A
r
Typ.
Typ.
= 25°C
102
102
325
108
= 25°C
162
1.4
1.2
1.1
4.6
4.4
4.3
1.4
1.2
30
29
22
31
23
68
20
16
±1
78
= t
8
7
5
5
f
= 6ns)
Max.
Max.
210
235
160
75
15
13
42
36
47
40
32
27
75
15
13
75
15
13
10
Value
Value
-40 to 85°C
Min.
-40 to 85°C
Min.
CC(opr)
= C
Max.
Max.
265
295
200
95
19
16
53
45
59
50
40
34
95
19
16
95
19
16
10
PD
x V
-55 to 125°C
-55 to 125°C
Min.
Min.
CC
x f
IN
M74HC123
+ I
Max.
Max.
315
355
240
110
110
110
22
19
63
54
71
60
48
41
22
19
22
19
10
CC
’ Duty/100
Unit
Unit
ms
pF
pF
ns
ns
ns
ns
ns
ns
ns
%
7/12
s
s