CD54HC221F3A

The CD54HC221F3A from Texas Instruments is a High Speed CMOS Logic Dual Monostable Multivibrator with reset functionality. This device features two independent channels, each controlled by an external resistor and capacitor to set the output pulse width and accuracy. It utilizes HC technology, offering a wide operating voltage range from 2V to 6V with high noise immunity.

Key electrical characteristics include a supply current of 160µA, with IOL max of 5.2mA and IOH max of -5.2mA. The propagation delay (tpd) is specified between 10ns and 50ns. The input type is Standard CMOS, and the output type is Push-Pull, providing balanced outputs. It also features a positive input clamp diode.

Designed for a military rating, the CD54HC221F3A operates across a wide temperature range of -55°C to 125°C. It supports fanout of 10 LSTTL loads for standard outputs and 15 LSTTL loads for bus driver outputs. The device includes an overriding reset that terminates the output pulse and triggering from either the leading or trailing edge. Buffered outputs and separate resets are also provided.

Packaged in a CDIP (J) format, this component is suitable for through-hole mounting. The wide range of output-pulse widths and Schmitt trigger on B inputs make it a versatile component for timing and pulse generation applications.