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MC74HCT138A_15 Datasheet, PDF (3/7 Pages) ON Semiconductor – 1-of-8 Decoder/ Demultiplexer with LSTTL Compatible Inputs
MC74HCT138A
RECOMMENDED OPERATING CONDITIONS
Symbol
Parameter
Min
Max
Unit
VCC DC Supply Voltage (Referenced to GND)
2.0
6.0
V
Vin, Vout DC Input Voltage, Output Voltage (Referenced to GND)
0
VCC
V
TA Operating Temperature, All Package Types
–55
+125
_C
tr, tf Input Rise and Fall Time (Figure 1)
0
500
ns
Functional operation above the stresses listed in the Recommended Operating Ranges is not implied. Extended exposure to stresses beyond
the Recommended Operating Ranges limits may affect device reliability.
DC ELECTRICAL CHARACTERISTICS (Voltages Referenced to GND)
Guaranteed Limit
Symbol
Parameter
Test Conditions
VCC −55 to
V
25_C
≤ 85_C ≤ 125_C Unit
VIH Minimum High−Level Input
Voltage
Vout = 0.1 V or VCC – 0.1 V
|Iout| ≤ 20 mA
4.5
2.0
2.0
2.0
V
5.5
2.0
2.0
2.0
VIL Maximum Low−Level Input
Voltage
VOH Minimum High−Level Output
Voltage
Vout = 0.1 V or VCC – 0.1 V
|Iout| ≤ 20 mA
Vin = VIH or VIL
|Iout| ≤ 20 mA
Vin = VIH or VIL
|Iout| ≤ 4.0 mA
4.5
0.8
0.8
0.8
V
5.5
0.8
0.8
0.8
4.5
4.4
4.4
4.4
V
5.5
5.4
5.4
5.4
4.5
3.98
3.84
3.7
VOL Maximum Low−Level Output
Voltage
Vin = VIH or VIL
|Iout| ≤ 20 mA
Vin = VIH or VIL
|Iout| ≤ 4.0 mA
4.5
0.1
0.1
0.1
V
5.5
0.1
0.1
0.1
4.5
0.26
0.33
0.4
Iin
Maximum Input Leakage Current Vin = VCC or GND
ICC Maximum Quiescent Supply
Current (per Package)
Vin = VCC or GND
Iout = 0 mA
6.0
±0.1
±1.0
±1.0
mA
5.5
4.0
40
160
mA
DICC
Additional Quiescent Supply
Current
Vin = 2.4 V, Any One Input
≥ −55_C
25_C to 125_C
Vin = VCC or GND, Other Inputs
lout = 0 mA
5.5
2.9
2.4
mA
Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product
performance may not be indicated by the Electrical Characteristics if operated under different conditions.
AC ELECTRICAL CHARACTERISTICS (VCC = 5.0 V ±10%, CL = 50 pF, Input tr = tf = 6.0 ns)
Guaranteed Limit
Symbol
Parameter
tPLH,
tPHL
Maximum Propagation Delay, Input A to Output Y
(Figures 1 and 4)
−55 to
25_C
30
≤ 85_C
38
≤ 125_C Unit
45
ns
tPLH,
tPHL
tPLH,
tPHL
tTLH,
tTHL
tr, tf
Cin
Maximum Propagation Delay, CS1 to Output Y
(Figures 2 and 4)
Maximum Output Transition Time, CS2 or CS3 to Output Y
(Figures 3 and 4)
Maximum Output Transition Time, Any Output
(Figures 2 and 4)
Maximum Input Rise and Fall Time
Maximum Input Capacitance
27
34
41
ns
30
38
45
ns
15
19
22
ns
500
500
500
ns
10
10
10
pF
Typical @ 25°C, VCC = 5.0 V
CPD Power Dissipation Capacitance (Per Enabled Output)*
51
pF
* Used to determine the no−load dynamic power consumption: PD = CPD VCC2f + ICC VCC.
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