SN74HC138_101 Datasheet, PDF (4/22 Pages) Texas Instruments – 3-LINE TO 8-LINE DECODERS/DEMULTIPLEXERS

SN54HC138, SN74HC138
3-LINE TO 8-LINE DECODERS/DEMULTIPLEXERS
SCLS107E − DECEMBER 1982 − REVISED SEPTEMBER 2003
recommended operating conditions (see Note 3)
SN54HC138
MIN NOM MAX
SN74HC138
UNIT
MIN NOM MAX
V_CC Supply voltage
2
5
6
2
5
6V
V_CC = 2 V
1.5
1.5
V_IH
High-level input voltage
V_CC = 4.5 V
3.15
3.15
V
V_CC = 6 V
4.2
4.2
V_CC = 2 V
0.5
0.5
V_IL
Low-level input voltage
V_CC = 4.5 V
1.35
1.35 V
V_CC = 6 V
1.8
1.8
V_I
Input voltage
0
V_CC
0
V_CC
V
V_O
Output voltage
0
V_CC
0
V_CC
V
V_CC = 2 V
1000
1000
Δt/Δv Input transition rise/fall time
V_CC = 4.5 V
500
500 ns
V_CC = 6 V
400
400
T_A
Operating free-air temperature
−55
125 −40
85 °C
NOTE 3: All unused inputs of the device must be held at V_CC or GND to ensure proper device operation. Refer to the TI application report,
Implications of Slow or Floating CMOS Inputs, literature number SCBA004.
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
V_OH
V_OL
I_I
I_CC
C_i
V_I = V_IH or V_IL
I_OH = −20 μA
I_OH = −4 mA
I_OH = −5.2 mA
V_I = V_IH or V_IL
V_I = V_CC or 0
V_I = V_CC or 0,
I_OL = 20 μA
I_OL = 4 mA
I_OL = 5.2 mA
I_O = 0
V_CC
2V
4.5 V
6V
4.5 V
6V
2V
4.5 V
6V
4.5 V
6V
6V
6V
2 V to 6 V
T_A = 25°C
MIN TYP MAX
1.9 1.998
4.4 4.499
5.9 5.999
3.98 4.3
5.48 5.8
0.002 0.1
0.001 0.1
0.001 0.1
0.17 0.26
0.15 0.26
±0.1 ±100
8
3
10
SN54HC138
MIN MAX
1.9
4.4
5.9
3.7
5.2
0.1
0.1
0.1
0.4
0.4
±1000
160
10
SN74HC138
MIN MAX
1.9
4.4
5.9
3.84
5.34
0.1
0.1
0.1
0.33
0.33
±1000
80
10
UNIT
V
V
nA
μA
pF
4
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