74HCT123PW Series

Dual retriggerable monostable multivibrator with reset

Manufacturer: Freescale Semiconductor - NXP

Catalog

Dual retriggerable monostable multivibrator with reset

Part	Package / Case	Package / Case [x]	Package / Case [y]	Mounting Type	Independent Circuits	Schmitt Trigger Input	Qualification	Logic Type	Grade	Current - Output High, Low [custom]	Current - Output High, Low [custom]	Supplier Device Package	Operating Temperature [Max]	Operating Temperature [Min]	Propagation Delay	Voltage - Supply [Min]	Voltage - Supply [Max]
Freescale Semiconductor - NXP 74HCT123D-Q100,115	16-SOIC	0.154 in	3.9 mm	Surface Mount	2		AEC-Q100	Monostable	Automotive	4 mA	4 mA	16-SO	125 °C	-40 °C	65 ns	4.5 V	5.5 V
Freescale Semiconductor - NXP 74HCT123PW,118	16-TSSOP	0.173 in	4.4 mm	Surface Mount	2			Monostable		4 mA	4 mA	16-TSSOP	125 °C	-40 °C	77 ns	4.5 V	5.5 V

Catalog

Dual retriggerable monostable multivibrator with reset

Description

The 74HC123; 74HCT123 is a dual retriggerable monostable multivibrator with reset. The basic output pulse width is programmed by selection of external components (REXTand CEXT). Once triggered this basic pulse width may be extended by retriggering either of the edge triggered inputs (nAor nB). By repeating this process, the output pulse period (nQ = HIGH, nQ= LOW) can be made as long as desired. Alternatively, an output delay can be terminated at any time by a LOW-going edge on input nRD. Inputs include clamp diodes. This enables the use of current limiting resistors to interface inputs to voltages in excess of VCC.