74HCT154DB(2016) 查看數據表（PDF） - NXP Semiconductors.
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74HCT154DB Datasheet PDF : 20 Pages
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Nexperia
74HC154; 74HCT154
4-to-16 line decoder/demultiplexer
9,
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9
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90
9
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DDG
Test data is given in Table 10.
Definitions for test circuit:
RT = Termination resistance; should be equal to output impedance Zo of the pulse generator.
CL = Load capacitance including jig and probe capacitance.
RL = Load resistor.
S1 = Test selection switch.
Fig 9. Test circuit for measuring switching times
Table 10. Test data
Type
Input
VI
tr, tf
74HC154
VCC
6 ns
74HCT154
3V
6 ns
Load
CL
15 pF, 50 pF
15 pF, 50 pF
RL
1 k
1 k
S1 position
tPHL, tPLH
open
open
74HC_HCT154
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 7 — 29 February 2016
© Nexperia B.V. 2017. All rights reserved
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