74AHC123 Philips Semiconductors, 74AHC123 Datasheet - Page 19

• Manufacturer Part Number: 74AHC123
• Description: Dual retriggerable monostable multivibrator with reset
• Manufacturer: Philips Semiconductors

Philips Semiconductors
2000 Mar 15
handbook, full pagewidth
handbook, full pagewidth
Dual retriggerable monostable multivibrator
with reset
t
t
t
PLH
PLZ
PHZ
/t
/t
/t
TEST
PZL
PHL
PZH
nA input
nB input
nR D input
nR EXT / C EXT
nQ output
nQ output
open
V
GND
CC
S1
GENERATOR
PULSE
Definitions for test circuit.
C
R
Fig.11 Load circuitry for switching times.
t W
L
T
= load capacitance including jig and probe capacitance (See Chapter “AC characteristics”).
= termination resistance should be equal to the output impedance Z
Fig.10 Input and output timing.
V I
R T
D.U.T.
V CC
19
V O
C L
MNA183
t W
1000
S1
open
GND
V CC
t rt
t W
o
t rt
of the pulse generator.
74AHCT123A
74AHC123A;
Product specification
MNA523