Product Summary

The SN74LS123N is a DC triggered multivibator, which features output pulse-duration control by three methods. The basic pulse time is programmed by selection of external resistance and capacitance values. The SN74LS123N has internal timing resistors that allow the circuits to be used with only an extenal capacitor, if so desired. Once triggered, the basic pulse duration 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.

Parametrics

SN74LS123N absolute maximum ratings: (1)supply voltage, VCC: 7 V; (2)input voltage: 5.5 V; (3)operating free-air temperature range: -55 to 125 ℃; (4)storage temperature range: -60 to 150 ℃.

Features

SN74LS123N features: (1)DC triggered from Active-high or Active-low gated logic inputs; (2)retriggerable for very long output pulses, up to 100% duty cycle; (3)overriding cear terminates output pulse; (4)122 and LS122 have internal timing resistors.

Diagrams

SN74LS123N logic diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
SN74LS123N
SN74LS123N

Texas Instruments

Monostable Multivibrator Dual Mono

Data Sheet

0-1: $0.45
1-25: $0.41
25-100: $0.35
100-250: $0.31
SN74LS123NE4
SN74LS123NE4

Texas Instruments

Monostable Multivibrator Dual retrig monostbl multivibrators

Data Sheet

0-1: $0.45
1-25: $0.41
25-100: $0.35
100-250: $0.31
SN74LS123NSRG4
SN74LS123NSRG4

Texas Instruments

Monostable Multivibrator Dual retrig monostbl multivibrators

Data Sheet

0-1: $0.45
1-25: $0.41
25-100: $0.35
100-250: $0.31
SN74LS123NSR
SN74LS123NSR

Texas Instruments

Monostable Multivibrator Dual retrig monostbl multivibrators

Data Sheet

0-1: $0.45
1-25: $0.41
25-100: $0.35
100-250: $0.31