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HC123 Datasheet(PDF) 7 Page - STMicroelectronics

Part # HC123
Description  DUAL RETRIGGERABLE MONOSTABLE MULTIVIBRATOR
PDF  14 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

HC123 Datasheet(HTML) 7 Page - STMicroelectronics

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AC ELECTRICAL CHARACTERISTICS (CL =50 pF, Input tr =tf =6 ns)
Symbol
Parameter
Test Conditions
Value
Unit
VCC
(V)
TA =25
oC
54HC and 74HC
-40 to 85
oC
74HC
-55 to 125
oC
54HC
Min.
Typ.
Max.
Min.
Max.
Min.
Max.
tTLH
tTHL
Output Transition
Time
2.0
30
75
95
110
ns
4.5
8
151922
6.0
7
131619
tPLH
tPHL
Propagation
Delay Time
(A, B - Q, Q)
2.0
102
210
265
315
ns
4.5
29
42
53
63
6.0
22
36
45
54
tPLH
tPHL
Propagation
Delay Time
(CLRTRIGGER- Q,Q)
2.0
102
235
295
355
ns
4.5
31
47
59
71
6.0
23
40
50
60
tPLH
tPHL
Propagation
Delay Time
(CLR - Q, Q)
2.0
68
160
200
240
ns
4.5
20
32
40
48
6.0
16
27
34
41
tWOUT
Output Pulse
Width
(for HC123)
2.0
CX = 100 pF
RX =10 K
Ω
1.4
µs
4.5
1.2
6.0
1.1
2.0
CX = 0.1
µF
RX = 100 K
Ω
4.6
ms
4.5
4.4
6.0
4.3
tWOUT
Output Pulse
Width
(for HC123A)
2.0
CX = 100 pF
RX =10 K
Ω
1.9
µs
4.5
1.6
6.0
1.5
2.0
CX = 0.1
µF
RX = 100 K
Ω
9.8
ms
4.5
9.5
6.0
9.4
∆tWOUT
Output Pulse
Width Error
Between Circuits
in Same Package
±1
%
tW(H)
tW(L)
Minimum Pulse
Width
2.0
75
95
110
ns
4.5
15
19
22
6.0
13
16
19
tW(L)
Minimum Pulse
Width (CLR)
2.0
75
95
110
ns
4.5
15
19
22
6.0
13
16
19
trr
Minimum
Retrigger Time
2.0
CX = 100 pF
RX =1 K
Ω
325
ns
4.5
108
6.0
78
2.0
CX = 0.1
µF
RX = 100 K
Ω
5
µs
4.5
1.4
6.0
1.2
CIN
Input Capacitance
5
10
10
10
pF
CPD (*)
Power Dissipation
Capacitance
162
pF
(*) CPD is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without load.
(RefertoTestCircuit). Average operting current canbeobtained by the following equation. ICC(opr) =CPD
•VCC •fIN +ICC’ Duty/100 + IC/2(per monostable)
(ICC’: Active Supply Current) (Duty:%)
M54/M74HC123/123A
7/14



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