MC14043BFELG

Latches Overview

The MC14043BFELG is a CMOS MSI quad R-S latch manufactured by onsemi. It features four independent latches with Q outputs gated through three-state buffers controlled by a common enable input. The device operates within a supply voltage range of 3.0 Vdc to 18 Vdc and supports an ambient temperature range from -55°C to +125°C. It utilizes SOEIAJ-16 packaging (F suffix) and includes double diode input protection.

Latches Feature Summary

• Quad R-S latches with independent set and reset inputs
• Three-state outputs with a common enable control
• Double diode input protection for high static voltage safety

Latches Applications

• Data storage in digital logic circuits
• Signal buffering with bus isolation capabilities
• Interface between microprocessors and peripheral devices

Latches Procurement Notes

Verify the F suffix indicates the SOEIAJ-16 package configuration. Confirm RoHS compliance and Pb-Free status as specified in the ordering information. Ensure the application environment remains within the rated -55°C to +125°C operating temperature range. Unused inputs must be tied to appropriate logic levels to prevent undefined states.

Latches Selection Notes

Select this component when multiple independent latches with tri-state output control are required in a single package. The wide supply voltage range accommodates various logic families. Verify that the SOEIAJ-16 footprint matches the PCB layout requirements compared to standard SOIC packages.

Latches Part Context

This part belongs to the MC14043B/MC14044B family of CMOS MSI quadruple R-S latches. The MC14043B variant specifically provides three-state outputs, whereas the MC14044B offers non-inverting outputs without tri-state capability. Both share identical pinouts and electrical characteristics except for the output structure.

Latches Replacement Considerations

MC14043BDG: Identical function in SOIC-16 package. NLV14043BDG: Automotive qualified version in SOIC-16 package.