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MC74VHC157 Datasheet, PDF (4/7 Pages) Motorola, Inc – Quad 2-Channel Multiplexer
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MC74VHC157
DC CHARACTERISTICS (Voltages Referenced to GND)
Symbol
VIH
Parameter
High--Level
Input Voltage
VIL
Low--Level
Input Voltage
VOH
High--Level
Output Voltage
VCC
TA = 25_C
TA ≤85_C
--55_C ≤TA≤125_C
Condition
(V)
Min Typ Max
Min
Max
Min
Max Unit
2.0
1.5
3.0 to 5.5 0.7 VCC
1.5
1.5
V
0.7 VCC
0.7 VCC
2.0
3.0 to 5.5
0.5
0.3 VCC
0.5
0.3 VCC
0.5
V
0.3 VCC
VIN = VIH or VIL
2.0
1.9
2.0
1.9
1.9
V
IOH = --50 mA
3.0
2.9
3.0
2.9
2.9
4.5
4.4
4.5
4.4
4.4
VIN = VIH or VIL
IOH = --4 mA
3.0
IOH = --8 mA
4.5
VOL
Low--Level
VIN = VIH or VIL
2.0
Output Voltage IOL = 50 mA
3.0
4.5
2.58
2.48
3.94
3.8
0.0
0.1
0.1
0.0
0.1
0.1
0.0
0.1
0.1
2.34
3.66
0.1
V
0.1
0.1
VIN = VIH or VIL
IOH = 4 mA
3.0
IOH = 8 mA
4.5
IIN
Input Leakage VIN = 5.5 V or 0 to 5.5
Current
GND
0.36
0.36
±0.1
0.44
0.44
±1.0
0.52
0.52
±1.0 mA
ICC
Quiescent
VIN = VCC or
5.5
Supply Current GND
4.0
40.0
40.0
mA
AC ELECTRICAL CHARACTERISTICS (Input tr = tf = 3.0 ns)
TA = 25_C
Symbol Characteristic
Test Conditions
Min Typ Max
tPLH,
tPHL
Propagation Delay, VCC = 3.3 ± 0.3 V CL = 15 pF
A to B to Y
CL = 50 pF
6.2 9.7
8.7 13.2
VCC = 5.0 ± 0.5 V CL = 15 pF
CL = 50 pF
4.1 6.4
5.6 8.4
tPLH,
tPHL
Propagation Delay, VCC = 3.3 ± 0.3 V CL = 15 pF
S to Y
CL = 50 pF
8.4 13.2
10.9 16.7
VCC = 5.0 ± 0.5 V CL = 15 pF
CL = 50 pF
5.3 8.1
6.8 10.1
tPLH,
tPHL
Propagation Delay, VCC = 3.3 ± 0.3 V CL = 15 pF
E to Y
CL = 50 pF
8.7 13.6
11.2 17.1
VCC = 5.0 ± 0.5 V CL = 15 pF
CL = 50 pF
5.6 8.6
7.1 10.6
CIN
Input Capacitance
4
10
TA ≤85_C
Typ Max
1.0 11.5
1.0 15.0
1.0 7.5
1.0 9.5
1.0 15.5
1.0 19.0
1.0 9.5
1.0 11.5
1.0 16.0
1.0 19.5
1.0 10.0
1.0 12.0
10
--55_C ≤TA≤125_C
Typ
Max Unit
1.0
11.5
ns
1.0
15.0
1.0
7.5
1.0
9.5
1.0
15.5
ns
1.0
19.0
1.0
9.5
1.0
11.5
1.0
16.0
ns
1.0
19.5
1.0
10.0
1.0
12.0
10
pF
Typical @ 25_C, VCC = 5.0 V
CPD
Power Dissipation Capacitance (Note 7)
20
pF
7. 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 + ICC. CPD is used to determine the no--load dynamic
power consumption: PD = CPD ¯ VCC2 ¯ fin + ICC ¯ VCC.
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