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| 74HC138 Datasheet, PDF (6/10 Pages) NXP Semiconductors – 3-to-8 line decoder/demultiplexer; inverting | |||
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Operating Characteristics (@TA = +25°C, unless otherwise specified.)
Parameter
Test
Conditions
VCC = 5V
Typ
Unit
Cpd
Power dissipation
capacitance
f = 1 MHz all outputs switching-no load
19
pF
Parameter Measurement Information
74HC138
Vcc
2.0V -6.0V
5.0V
Inputs
VI
tr/tf
VCC
6 ns
VCC
6 ns
VM
VCC/2
VCC/2
CL
50pF
15pF used for 5V typical test
Voltage Waveform
Pulse Duration
Voltage Waveform
Propagation Delay Times
Inverting and Non Inverting Outputs
Notes:
A. Includes test lead and test apparatus capacitance.
B. All pulses are supplied at pulse repetition rate ⤠10 MHz.
C. Inputs are measured separately one transition per measurement
D. tPLH and tPHL are the same as tPD
Figure 1 Load Circuit and Voltage Waveforms
74HC138
Document number: DS35488 Rev.3 - 2
6 of 10
www.diodes.com
June 2013
© Diodes Incorporated
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