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74VHC123ACW View Datasheet(PDF) - Fairchild Semiconductor

Part Name
Description
View to exact match
74VHC123ACW
Fairchild
Fairchild Semiconductor Fairchild
74VHC123ACW Datasheet PDF : 9 Pages
1 2 3 4 5 6 7 8 9
AC Electrical Characteristics (Note 5)
Symbol
Parameter
VCC
TA = 25°C
TA = −40°C to +85°C Units
(V)
Min
Typ
Max
Min
Max
Conditions
tPLH
Propagation Delay Time 3.3 ± 0.3
tPHL
(A, B–Q, Q)
13.4
20.6
1.0
24.0
ns CL = 15 pF
15.9
24.1
1.0
27.5
CL = 50 pF
5.0 ± 0.5
tPLH
Propagation Delay Time 3.3 ± 0.3
tPHL
(CLR Trigger—Q, Q \)
8.1
12.0
1.0
14.0
ns CL = 15 pF
9.6
14.0
1.0
16.0
CL = 50 pF
14.5
22.4
1.0
26.0
ns CL = 15 pF
17.0
25.9
1.0
29.5
CL = 50 pF
5.0 ± 0.5
tPLH
Propagation Delay Time 3.3 ± 0.3
tPHL
(CLR—Q, Q)
8.7
12.9
1.0
15.0
ns CL = 15 pF
10.2
14.9
1.0
17.0
CL = 50 pF
10.3
15.8
1.0
18.5
CL = 15 pF
ns
12.8
19.3
1.0
22.0
CL = 50 pF
5.0 ± 0.5
6.3
9.4
1.0
11.0
ns CL = 15 pF
7.8
11.4
1.0
13.0
CL = 50 pF
tWOUT
Output Pulse Width
3.3 ± 0.3
5.0 ± 0.5
160
240
133
200
300
ns CL = 50 pF Cx = 28 pF
240
Rx = 2 k
3.3 ± 0.3 90
100
110
90
110
µs CL = 50 pF Cx = 0.01 µF
5.0 ± 0.5 90
100
110
90
110
Rx = 10 k
3.3 ± 0.3 0.9
1.0
1.1
0.9
1.1
ms CL = 50 pF Cx = 0.1 µF
5.0 ± 0.5 0.9
1.0
1.1
0.9
1.1
Rx = 10 k
tWOUT
Output Pulse Width Error
Between Circuits
±1
%
(In same Package)
CIN
Input Capacitance
CPD
Power Dissipation
Capacitance
4
10
73
10
pF VCC = Open
pF (Note 6)
Note 5: Refer to Timing Chart.
Note 6: CPD is defined as the value of the internal equivalent capacitance which is calculated from the operating current consumption without load. Average
operating current can be obtained by the equation:
ICC (opr.) = CPD*VCC*fIN+ ICC1*Duty/100 + ICC/2 (per Circuit)
ICC1: Active Supply Current
Duty:%
AC Operating Requirement (Note 7)
Symbol
Parameter
tW(L)
tW(H)
tW(L)
tRR
Minimum Trigger
Pulse Width
Minimum Clear
Pulse Width
Minimum
Retrigger Time
Note 7: Refer to Timing Chart.
VCC
TA = 25°C
TA = −40°C to +85°C
Units
Conditions
(V)
Min
Typ
Max
Min
Max
3.3
5.0
5.0
5.0
5.0
ns
5.0
3.3
5.0
5.0
ns
5.0
5.0
5.0
3.3 ± 0.3
60
5.0 ± 0.5
39
3.3
1.5
5.0
1.2
ns Rx = 1 k
CX = 100 pF
µs Rx = 1 k
CX = 0.01 µF
5
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