74AHC123APW データシートの表示（PDF） - Philips Electronics
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74AHC123APW Datasheet PDF : 24 Pages
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Philips Semiconductors
Dual retriggerable monostable multivibrator
with reset
Product specification
74AHC123A;
74AHCT123A
handbook, full pagewidth
nA input
nB input
nRD input
nREXT/ CEXT
nQ output
nQ output
trt
tW
tW
Fig.10 Input and output timing.
tW + trt
MNA523
handbook, full pagewidth
PULSE
VI
GENERATOR
VCC
VO
D.U.T.
RT
S1
1000 Ω
VCC
open
GND
CL
MNA183
TEST
tPLH/tPHL
tPLZ/tPZL
tPHZ/tPZH
S1
open
VCC
GND
2000 Mar 15
Definitions for test circuit.
CL = load capacitance including jig and probe capacitance (See Chapter “AC characteristics”).
RT = termination resistance should be equal to the output impedance Zo of the pulse generator.
Fig.11 Load circuitry for switching times.
19
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