CD4043BNSR

Latches Overview

The CD4043BNSR is a CMOS Quad NOR R/S Latch featuring three-state outputs, manufactured by Texas Instruments. It operates within a supply voltage range of 3 V to 18 V and supports surface-mount installation in a 16-SOIC package. The device provides four independent latch circuits with set and reset capabilities, designed for reliable data storage in digital logic applications.

Latches Feature Summary

• Quad configuration providing four independent NOR-based R/S latches
• Three-state output capability allowing bus-driven interfacing
• CMOS technology ensuring low static power consumption

Latches Applications

• Digital data storage systems
• Bus interface circuits requiring tri-state control
• General-purpose logic memory elements

Latches Procurement Notes

Verify the specific suffix 'NSR' against the manufacturer's official datasheet to confirm package dimensions and tape-and-reel specifications. Ensure compatibility with the target PCB footprint and reflow soldering profile. Confirm RoHS compliance status through current regulatory documentation before finalizing procurement orders.

Latches Selection Notes

Select this component when a quad latch with tri-state outputs is required for NOR logic implementation. Verify that the 3 V to 18 V operating range matches the system power supply. Consider the SOIC-16 package constraints for board space and thermal management requirements during the design phase.

Latches Part Context

This part belongs to the CD4000B series of CMOS logic devices, widely used in industrial and consumer electronics. The CD4043 variant specifically implements NOR-based latching, distinguishing it from NAND-based counterparts like the CD4044. It serves as a fundamental building block for sequential logic circuits in mixed-signal systems.

Latches Replacement Considerations

CD4044BNSR offers equivalent functionality using NAND-based latching instead of NOR logic. Verify logical inversion requirements between inputs and outputs when substituting. Other compatible parts include CD4043BDW or CD4043BDR depending on packaging preferences.