MC74HC4538ANG

Multivibrators Overview

The MC74HC4538ANG is a dual precision monostable multivibrator manufactured by onsemi, housed in a PDIP-16 package. It operates within a supply voltage range of 3.0 to 6.0 V and supports an operating temperature range from -55°C to +125°C. The device features two independent circuits with propagation delays ranging from 30 ns to 295 ns depending on voltage and temperature. It provides a low-level output current of 5.2 mA and a high-level output current of -5.2 mA, ensuring compatibility with CMOS, NMOS, and TTL loads.

Multivibrators Feature Summary

• Retriggerable operation allows pulse extension when triggered during the timing cycle
• Conditioned trigger inputs eliminate restrictions on input rise and fall times
• Active-low reset function forces outputs to defined states regardless of timing status
• Outputs directly interface with standard CMOS, NMOS, and LSTTL logic families

Multivibrators Applications

• Pulse width generation and shaping
• Timing delay circuits
• Debouncing switches or contacts
• Frequency division

Multivibrators Procurement Notes

Verify the specific ordering suffix 'N' corresponds to the PDIP-16 package configuration required for your design. Confirm that the 'G' suffix indicates a lead-free compliant package as specified in the manufacturer's documentation. Ensure the component meets the environmental requirements for your intended application before procurement.

Multivibrators Selection Notes

Select this component when precise pulse width control is required over wide temperature and voltage variations. The HC series offers speed comparable to low-power Schottky TTL while maintaining CMOS noise immunity. Consider the PDIP-16 package if through-hole mounting is necessary for your PCB layout constraints.

Multivibrators Part Context

This device belongs to the MC74HC4538A family of dual monostable multivibrators. It shares pinout compatibility with the MC14538B but utilizes advanced silicon-gate CMOS technology. The family is designed for applications requiring reliable one-shot pulse generation with minimal external component sensitivity.

Multivibrators Replacement Considerations

The MM74HC4538SJX is a documented alternative variant within the same logical family, though it utilizes a different SOP-16 package and may have distinct thermal characteristics.