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SN74HC138D 数据表(PDF) 4 Page - Texas Instruments

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部件名 SN74HC138D
功能描述  3-LINE TO 8-LINE DECODERS/DEMULTIPLEXERS
Download  22 Pages
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制造商  TI1 [Texas Instruments]
网页  http://www.ti.com
标志 TI1 - Texas Instruments

SN74HC138D 数据表(HTML) 4 Page - Texas Instruments

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SN54HC138, SN74HC138
3-LINE TO 8-LINE DECODERS/DEMULTIPLEXERS
SCLS107E − DECEMBER 1982 − REVISED SEPTEMBER 2003
4
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
recommended operating conditions (see Note 3)
SN54HC138
SN74HC138
UNIT
MIN
NOM
MAX
MIN
NOM
MAX
UNIT
VCC
Supply voltage
2
5
6
2
5
6
V
VCC = 2 V
1.5
1.5
VIH
High-level input voltage
VCC = 4.5 V
3.15
3.15
V
VIH
High level input voltage
VCC = 6 V
4.2
4.2
V
VCC = 2 V
0.5
0.5
VIL
Low-level input voltage
VCC = 4.5 V
1.35
1.35
V
VIL
Low level input voltage
VCC = 6 V
1.8
1.8
V
VI
Input voltage
0
VCC
0
VCC
V
VO
Output voltage
0
VCC
0
VCC
V
VCC = 2 V
1000
1000
Δt/Δv
Input transition rise/fall time
VCC = 4.5 V
500
500
ns
Δt/Δv
Input transition rise/fall time
VCC = 6 V
400
400
ns
TA
Operating free-air temperature
−55
125
−40
85
°C
NOTE 3: All unused inputs of the device must be held at VCC 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
TA = 25°C
SN54HC138
SN74HC138
UNIT
PARAMETER
TEST CONDITIONS
VCC
MIN
TYP
MAX
MIN
MAX
MIN
MAX
UNIT
2 V
1.9
1.998
1.9
1.9
IOH = −20 μA
4.5 V
4.4
4.499
4.4
4.4
VOH
VI = VIH or VIL
IOH
20
μA
6 V
5.9
5.999
5.9
5.9
V
VOH
VI
VIH or VIL
IOH = −4 mA
4.5 V
3.98
4.3
3.7
3.84
V
IOH = −5.2 mA
6 V
5.48
5.8
5.2
5.34
2 V
0.002
0.1
0.1
0.1
IOL = 20 μA
4.5 V
0.001
0.1
0.1
0.1
VOL
VI = VIH or VIL
IOL
20
μA
6 V
0.001
0.1
0.1
0.1
V
VOL
VI
VIH or VIL
IOL = 4 mA
4.5 V
0.17
0.26
0.4
0.33
V
IOL = 5.2 mA
6 V
0.15
0.26
0.4
0.33
II
VI = VCC or 0
6 V
±0.1
±100
±1000
±1000
nA
ICC
VI = VCC or 0,
IO = 0
6 V
8
160
80
μA
Ci
2 V to 6 V
3
10
10
10
pF


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