DM54123 - National Semiconductor

DM54123 Dual Retriggerable One-Shot with Clear and Complementary Outputs

The ’123 is a dual retriggerable monostable multivibrator capable of generating output pulses from a few nano-seconds 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 t.

Features

Y Y Y Y Y Y DC triggered from active-high transition or active-low transition inputs Retriggerable to 100% duty cycle Direct reset terminates output pulse Compensated for VCC and temperature variations DTL TTL compatible Input clamp diodes Functional Description The basic output pulse width is determined by selection of an external resistor (RX) and capacitor (CX) Once triggered the basic pulse width may be extended by retriggering the gated active-low transition or active-high transition inputs or be reduced by use of the active-low transition clear input Retriggering to 100% duty cycle is .