74AHCT123ABQ 查看數據表（PDF） - NXP Semiconductors.
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74AHCT123ABQ Datasheet PDF : 21 Pages
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NXP Semiconductors
11. Waveforms
74AHC123A; 74AHCT123A
Dual retriggerable monostable multivibrator with reset
nB input
(nA LOW)
nA input
(nB HIGH)
VM
tW
nRD input
nQ output
tPLH
VM
VM
tW
tPLH
nQ output
tW
VM
tPHL
tPHL
Measurement points are given in Table 8.
Fig 7. Propagation delay input (nA, nB, nRD) to output (nQ, nQ)
Table 8. Measurement points
Type
74AHC123A
74AHCT123A
Input
VM
0.5VCC
1.5 V
RESET
VM
tW
tPHL
tW
tPLH
tPLH
tPHL
001aae528
Output
VM
0.5VCC
0.5VCC
nB input
tW
nA input
nQ output
tW
nRD = HIGH
Fig 8. Output pulse control using retrigger pulse
trtrig
tW
tW
001aae526
74AHC_AHCT123A_2
Product data sheet
Rev. 02 — 18 January 2008
© NXP B.V. 2008. All rights reserved.
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