DESCRIPTION

· The MM74HC4538 is a high-speed dual retriggerable monostable multivibrator implemented in advanced silicon-gate CMOS technology.
· It offers speeds comparable to low-power Schottky TTL while maintaining CMOS's low power and high noise immunity.
· Features both negative and positive transition-triggered inputs, which can also serve as inhibit inputs.
· Includes a clear input for resetting the one-shot, and is retriggerable, allowing pulse extension during output pulse generation.
· Pulse width stability is maintained across a wide temperature and supply range using linear CMOS techniques.
· Output pulse width is determined by the equation PW = 0.7(R)(C), where PW is in seconds, R is in ohms, and C is in farads.
· Pin compatible with CD4528 and CD4538 one-shots, with all inputs protected against static discharge.

FEATURES

· Schmitt trigger on A and B inputs for improved noise immunity.
· Wide power supply range from 2V to 6V.
· Typical trigger propagation delay of 32 ns.
· Capable of driving up to 10 LS-TTL loads.
· Low input current, maximum of 1 µA.
· Available in various package options including SOIC, SOP, and PDIP.

APPLICATIONS

· Suitable for applications requiring precise timing control.
· Ideal for use in digital systems where retriggerable monostable multivibrators are needed.
· Can be used in environments where low power consumption and high noise immunity are critical.
· Applicable in systems requiring stable pulse width over varying temperatures and supply voltages.