74LV123DB(2007) View Datasheet(PDF) - NXP Semiconductors.
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74LV123DB Datasheet PDF : 23 Pages
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NXP Semiconductors
11. Waveforms
74LV123
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 delays from inputs (nA, nB, nRD) to outputs (nQ, nQ)
Table 8.
VCC
≥ 2.7 V
< 2.7 V
Measurement points
VM
1.5 V
0.5 × VCC
RESET
VM
tW
tPHL
tW
tPLH
tPLH
tPHL
001aae528
VI
PULSE
GENERATOR
VCC
VO
DUT
RT
CL
50 pF
RL
1 kΩ
Test data is given in Table 9.
Definitions for test circuit:
RL = Load resistance.
CL = Load capacitance including jig and probe capacitance.
RT = Termination resistance should be equal to Zo of the pulse generator.
Fig 8. Load circuitry for switching times
74LV123_5
Product data sheet
Rev. 05 — 8 November 2007
001aae533
© NXP B.V. 2007. All rights reserved.
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