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74HC237 Datasheet(PDF) 9 Page - NXP Semiconductors

Part # 74HC237
Description  3-to-8 line decoder, demultiplexer with address latches
PDF  17 Pages
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Manufacturer  NXP [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo NXP - NXP Semiconductors

74HC237 Datasheet(HTML) 9 Page - NXP Semiconductors

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74HC237
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2011. All rights reserved.
Product data sheet
Rev. 4 — 10 January 2011
9 of 17
NXP Semiconductors
74HC237
3-to-8 line decoder, demultiplexer with address latches
Test data is given in Table 9.
Definitions 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 resistance.
S1 = Test selection switch.
Fig 10. Test circuit for measuring switching times
001aah768
tW
tW
tr
tr
tf
VM
VI
negative
pulse
GND
VI
positive
pulse
GND
10 %
90 %
90 %
10 %
VM
VM
VM
tf
VCC
DUT
RT
VI
VO
CL
G
Table 9.
Test data
Type
Input
Load
Test
VI
tr, tf
CL
74HC237
VCC
6.0 ns
15 pF, 50 pF
tPLH, tPHL



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