54LS123 Datasheet – Monostable Multivibrator – Motorola

Part Number: 54LS123, SN54LS123

Function:  Retriggerable Monostable Multivibrator

Package: DIP, SOP 16 Pin

Manufacturer: Motorola => Freescale


54LS123 datasheet



Thesedc triggered multivibrators feature pulse width controlby three methods.The basic pulse width is programmed by selection of external resistance andcapacitance values. The LS122 has an internal timing resistor that allows thecircuits to be used with only an external capacitor. Once triggered, the basic pulse width may be extended by retriggering the gated low-level-active (A) or high-level-active (B) inputs, or be reduced by use of the overriding clear.


1. Overriding Clear Terminates Output Pulse
2. Compensated for VCC and Temperature Variations
3. DC Triggered from Active-High or Active-Low Gated Logic Inputs
4. Retriggerable for Very Long Output Pulses, up to 100% Duty Cycle

Other data sheets are available within the file: 54LS122, SN54LS123J, 74LS123, SN54LS122

54LS123 Datasheet PDF

54LS123 pdf