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PDF HD74HC123 Data sheet ( Hoja de datos )
| Número de pieza | HD74HC123 | |
| Descripción | Dual Retriggerable Monostable Multivibrators (with Clear) | |
| Fabricantes | Hitachi Semiconductor | |
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HD74HC123A
Dual Retriggerable Monostable Multivibrators (with Clear)
Description
This multivibrator features both a negative, A, and a positive, B, transition triggered input, either of which
can be used as an inhibit input. Also included is a clear input that when taken low resets the one shot. The
HD74HC123A can be triggered on the positive transition of the clear while A is held low and B is held
high.
The HD74HC123A is retriggerable. That is it may be triggered repeatedly while their outputs are
generating a pulse and the pulse will be extended.
Pulse width stability over a wide range of temperature. The output pulse equation is simply: tw = (Rext)
(Cext).
Features
• High Speed Operation
• High Output Current: Fanout of 10 LSTTL Loads
• Wide Operating Voltage: VCC = 2 to 6 V
• Low Input Current: 1 µA max
• Low Quiescent Supply Current
Function Table
Inputs
Outputs
Clear
A
B
Q
LX X L
XH X L
XX L L
HL
HH
LH
Note: External timing capacitance connects between Cext and Rext/Cext.
Q
H
H
H
1 page  
19.20
20.00 Max
16
9
1
1.3
1.11 Max
8
Unit: mm
7.62
2.54 ± 0.25
0.48 ± 0.10
0.25
+
–
0.13
0.05
0° – 15°
Hitachi Code
JEDEC
EIAJ
Weight (reference value)
DP-16
Conforms
Conforms
1.07 g
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet HD74HC123.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| HD74HC123 | Dual Retriggerable Monostable Multivibrators (with Clear) | Hitachi Semiconductor |
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