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PDF HC123 Data sheet ( Hoja de datos )
| Número de pieza | HC123 | |
| Descripción | Dual retriggerable monostable multivibrator with reset | |
| Fabricantes | NXP Semiconductors | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de HC123 (archivo pdf) en la parte inferior de esta página. Total 17 Páginas | ||
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INTEGRATED CIRCUITS
DATA SHEET
For a complete data sheet, please also download:
• The IC06 74HC/HCT/HCU/HCMOS Logic Family Specifications
• The IC06 74HC/HCT/HCU/HCMOS Logic Package Information
• The IC06 74HC/HCT/HCU/HCMOS Logic Package Outlines
74HC/HCT123
Dual retriggerable monostable
multivibrator with reset
Product specification
Supersedes data of September 1993
File under Integrated Circuits, IC06
1998 Jul 08
1 page  
Philips Semiconductors
Dual retriggerable monostable
multivibrator with reset
Product specification
74HC/HCT123
Fig.6 Timing component connections.
DC CHARACTERISTICS FOR 74HC
For the DC characteristics see “74HC/HCT/HCU/HCMOS Logic Family Specifications”.
Output capability: standard (except for nREXT/CEXT)
ICC category: MSI
1998 Jul 08
5
5 Page 
Philips Semiconductors
Dual retriggerable monostable
multivibrator with reset
APPLICATION INFORMATION
Power-up considerations
When the monostable is powered-up it may produce an
output pulse, with a pulse width defined by the values of RX
and CX, this output pulse can be eliminated using the
circuit shown in Fig.11.
Product specification
74HC/HCT123
Fig.11 Power-up output pulse elimination circuit.
Power-down considerations
A large capacitor (CX) may cause problems when
powering-down the monostable due to the energy stored
in this capacitor. When a system containing this device is
powered-down or a rapid decrease of VCC to zero occurs,
the monostable may substain damage, due to the
capacitor discharging through the input protection diodes.
To avoid this possibility, use a damping diode (DX)
preferably a germanium or Schottky type diode able to
withstand large current surges and connect as shown in
Fig.12
Fig.12 Power-down protection circuit.
1998 Jul 08
11
11 Page | ||
| Páginas | Total 17 Páginas | |
| PDF Descargar | [ Datasheet HC123.PDF ] | |
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