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74AHC138 Datasheet(PDF) 6 Page - NXP Semiconductors

Part No. 74AHC138
Description  3-to-8 line decoder/demultiplexer; inverting
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Maker  PHILIPS [NXP Semiconductors]
Homepage  http://www.nxp.com
Logo 

 6 page
background image
1999 Sep 27
6
Philips Semiconductors
Product specification
3-to-8 line decoder/demultiplexer; inverting
74AHC138;
74AHCT138
DC CHARACTERISTICS
74AHC family
Over recommended operating conditions; voltages are referenced to GND (ground=0V).
SYMBOL
PARAMETER
TEST CONDITIONS
Tamb (°C)
UNIT
OTHER
VCC (V)
25
−40 to +85 −40 to +125
MIN.
TYP.
MAX. MIN. MAX. MIN. MAX.
VIH
HIGH-level input
voltage
2.0
1.5
−−
1.5
1.5
V
3.0
2.1
−−
2.1
2.1
5.5
3.85
−−
3.85
3.85
VIL
LOW-level input
voltage
2.0
−−
0.5
0.5
0.5
V
3.0
−−
0.9
0.9
0.9
5.5
−−
1.65
1.65
1.65
VOH
HIGH-level output
voltage; all
outputs
VI =VIH or VIL;
IO = −50 µA
2.0
1.9
2.0
1.9
1.9
V
3.0
2.9
3.0
2.9
2.9
4.5
4.4
4.5
4.4
4.4
HIGH-level output
voltage
VI =VIH or VIL;
IO = −4.0 mA
3.0
2.58
−−
2.48
2.40
V
VI =VIH or VIL;
IO = −8.0 mA
4.5
3.94
−−
3.8
3.70
VOL
LOW-level output
voltage; all
outputs
VI =VIH or VIL;
IO =50 µA
2.0
0
0.1
0.1
0.1
V
3.0
0
0.1
0.1
0.1
4.5
0
0.1
0.1
0.1
LOW-level output
voltage
VI =VIH or VIL;
IO =4mA
3.0
−−
0.36
0.44
0.55
V
VI =VIH or VIL;
IO =8mA
4.5
−−
0.36
0.44
0.55
II
input leakage
current
VI =VCC or GND
5.5
−−
0.1
1.0
2.0
µA
IOZ
3-state output
OFF current
VI =VIH or VIL;
VO =VCC or GND
5.5
−−
±0.25 −±2.5
−±10.0 µA
ICC
quiescent supply
current
VI =VCC or GND;
IO =0
5.5
−−
4.0
40
80
µA
CI
input capacitance
−−
310
10
10
pF




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