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74HC423D Datasheet(PDF) 13 Page - NXP Semiconductors

Part # 74HC423D
Description  Dual retriggerable monostable multivibrator with reset
PDF  23 Pages
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Manufacturer  NXP [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo NXP - NXP Semiconductors

74HC423D Datasheet(HTML) 13 Page - NXP Semiconductors

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74HC_HCT423_3
© NXP B.V. 2008. All rights reserved.
Product data sheet
Rev. 03 — 24 July 2008
13 of 23
NXP Semiconductors
74HC423; 74HCT423
Dual retriggerable monostable multivibrator with reset
nA = LOW.
Fig 11. Output pulse control using reset input nRD
mna522
tW
tW
tW
nB input
nRD input
nQ output
Test data is given in Table 9.
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.
Fig 12. 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
Supply
Input
Load
VCC
VI
tr, tf
CL
2.0 V to 6.0 V
VCC
6 ns
15 pF, 50 pF



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