DM74157 Datasheet, PDF (2/3 Pages) Fairchild Semiconductor – Quad 2-Line to 1-Line Data Selectors/Multiplexer

Absolute Maximum Ratings(Note 1)
Supply Voltage
7V
Input Voltage
5.5V
Operating Free Air Temperature Range 0°C to +70°C
Storage Temperature Range
−65°C to +150°C
Note 1: The “Absolute Maximum Ratings” are those values beyond which
the safety of the device cannot be guaranteed. The device should not be
operated at these limits. The parametric values defined in the Electrical
Characteristics tables are not guaranteed at the absolute maximum ratings.
The “Recommended Operating Conditions” table will define the conditions
for actual device operation.
Recommended Operating Conditions
Symbol
V_CC
V_IH
V_IL
I_OH
I_OL
T_A
Parameter
Supply Voltage
HIGH Level Input Voltage
LOW Level Input Voltage
HIGH Level Output Current
LOW Level Output Current
Free Air Operating Temperature
Min
4.75
2
0
Nom
5
Electrical Characteristics
over recommended operating free air temperature range (unless otherwise noted)
Symbol
Parameter
Conditions
V_I
Input Clamp Voltage
V_CC = Min, I_I = −12 mA
V_OH
HIGH Level
V_CC = Min, I_OH = Max
Output Voltage
V_IL = Max, V_IH = Min
V_OL
LOW Level
V_CC = Min, I_OL = Max
Output Voltage
V_IH = Min, V_IL = Max
I_I
Input Current @ Max Input Voltage
V_CC = Max, V_I = 5.5V
I_IH
HIGH Level Input Current
V_CC = Max, V_I = 2.4V
I_IL
LOW Level Input Current
V_CC = Max, V_I = 0.4V
I_OS
Short Circuit Output Current
V_CC = Max (Note 3)
I_CC
Supply Current
V_CC = Max (Note 4)
Note 2: All typicals are at V_CC = 5V, T_A = 25°C.
Note 3: Not more than one output should be shorted at a time.
Note 4: I_CC is measured with 4.5V applied to all inputs and all outputs OPEN.
Switching Characteristics
at V_CC = 5V and T_A = 25°C
Symbol
Parameter
t_PLH
Propagation Delay Time
LOW-to-HIGH Level Output
t_PHL
Propagation Delay Time
HIGH-to-LOW Level Output
t_PLH
Propagation Delay Time
LOW-to-HIGH Level Output
t_PHL
Propagation Delay Time
HIGH-to-LOW Level Output
t_PLH
Propagation Delay Time
LOW-to-HIGH Level Output
t_PHL
Propagation Delay Time
HIGH-to-LOW Level Output
From (Input)
To (Output)
Data to Y
Data to Y
Strobe to Y
Strobe to Y
Select to Y
Select to Y
Max
Units
5.25
V
V
0.8
V
−0.8
mA
16
mA
70
°C
Typ
Min
Max
(Note 2)
−1.5
2.4
3.4
0.4
1
40
−1.6
−18
−55
30
48
Units
V
V
V
mA
µA
mA
mA
mA
R_L = 400Ω, C_L = 15 pF
Min
Max
14
Units
ns
14
ns
20
ns
21
ns
23
ns
27
ns
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