74HC423D.653 Datasheet, PDF (13/24 Pages) NXP Semiconductors – Dual retriggerable monostable multivibrator with reset

NXP Semiconductors
74HC423; 74HCT423
Dual retriggerable monostable multivibrator with reset
nB input
nRD input
nQ output
t_W
t_W
nA = LOW.
Fig 11. Output pulse control using reset input nRD
t_W
mna522
V_{I 90 %}
negative
pulse
GND
V_I
positive
pulse
GND ^{10 %}
V_M
10 %
t_f
t_r
90 %
V_M
VI
G
RT
t_W
t_W
V_CC
DUT
V_M
t_r
t_f
V_M
VO
CL
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Test data is given in Table 9.
Definitions for test circuit:
R_T = Termination resistance should be equal to output impedance Z_o of the pulse generator.
C_L = Load capacitance including jig and probe capacitance.
Fig 12. Test circuit for measuring switching times
Table 9. Test data
Supply
Input
V_CC
V_I
2.0 V to 6.0 V
V_CC
t_r, t_f
6 ns
Load
C_L
15 pF, 50 pF
74HC_HCT423
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 6 — 19 December 2011
© NXP B.V. 2011. All rights reserved.
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