74LS123 (or 74123) IC – Dual Retriggerable – Monostable Multivibrator

The DM74LS123 is a dual retriggerable monostable multivibrator capable of generating output pulses from a few nanoseconds to extremely long duration up to 100% duty cycle. Each device has three inputs permitting the choice of either leading edge or trailing edge triggering. Pin (A) is an activelow transition trigger input and pin (B) is an active-high transition trigger input. The clear (CLR) input terminates the output pulse at a predetermined time independent of the timing components. The clear input also serves as a trigger input when it is pulsed with a low level pulse transition. To obtain the best trouble free operation from this device please read the operating rules as well as the NSC one-shot application notes carefully and observe recommendations.

Features/Specs:

• Max Supply Voltage: 7V
• Max Input Voltage: 7V
• Storage Temperature Range: -65ºC to +150ºC