Data Sheet

74VHC157 Quad 2-Input Multiplexer
©1992 Fairchild Semiconductor Corporation www.fairchildsemi.com
74VHC157 Rev. 1.2 5
DC Electrical Characteristics
Noise Characteristics
Note:
2. Parameter guaranteed by design.
Symbol Parameter V
CC
(V) Conditions
T
A
= 25°C
T
A
= –40°C to
+85°C
UnitsMin. Typ. Max. Min. Max.
V
IH
HIGH Level Input
Voltage
2.0 1.50 1.50 V
3.0–5.5 0.7 x V
CC
0.7 x V
CC
V
IL
LOW Level Input
Voltage
2.0 0.50 0.50 V
3.0–5.5 0.3 x V
CC
0.3 x V
CC
V
OH
HIGH Level
Output Voltage
2.0 V
IN
= V
IH
or V
IL
I
OH
= –50µA 1.9 2.0 1.9 V
3.0 2.9 3.0 2.9
4.5 4.4 4.5 4.4
3.0 I
OH
= –4mA 2.58 2.48
4.5 I
OH
= –8mA 3.94 3.80
V
OL
LOW Level
Output Voltage
2.0 V
IN
= V
IH
or V
IL
I
OL
= 50µA 0.0 0.1 0.1 V
3.0 0.0 0.1 0.1
4.5 0.0 0.1 0.1
3.0 I
OL
= 4mA 0.36 0.44
4.5 I
OL
= 8mA 0.36 0.44
I
IN
Input Leakage
Current
0–5.5 V
IN
= 5.5V or GND ±0.1 ±1.0 µA
I
CC
Quiescent
Supply Current
5.5 V
IN
= V
CC
or GND 4.0 40.0 µA
Symbol Parameter V
CC
(V) Conditions
T
A
= 25°C
UnitsTyp. Limits
V
OLP
(3)
Quiet Output Maximum
Dynamic V
OL
5.0 C
L
= 50pF 0.3 0.8 V
V
OLV
(3)
Quiet Output Minimum
Dynamic V
OL
5.0 C
L
= 50pF –0.3 –0.8 V
V
IHD
(3)
Minimum HIGH Level
Dynamic Input Voltage
5.0 C
L
= 50pF 3.5 V
V
ILD
(3)
Maximum LOW Level
Dynamic Input Voltage
5.0 C
L
= 50pF 1.5 V