CD4043BDW

Latches Overview

The CD4043BDW 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 an operating temperature range from -55 °C to +125 °C. The device utilizes a 16-pin SOIC surface-mount package with dimensions of 10.5 mm in length, 7.6 mm in width, and 2.35 mm in height. It belongs to the 4000 logic series and provides non-inverting polarity with transparent latching modes.

Latches Feature Summary

• Integrates four independent NOR-based R/S latches within a single integrated circuit
• Provides three-state output capability for bus-oriented applications
• Supports wide power supply voltage operation suitable for diverse system requirements
• Features industrial-grade temperature rating for reliable performance in harsh environments

Latches Applications

• Data storage circuits requiring parallel input and controlled output states
• Bus interface systems utilizing tri-state buffering capabilities
• Industrial control logic operating under extreme temperature conditions
• Memory address latching in embedded systems

Latches Procurement Notes

Verify that the specific part number suffix corresponds exactly to the SOIC-16 package configuration. Confirm compliance with RoHS directives if environmental regulations apply to your assembly process. Ensure that the supplier documentation explicitly identifies the component as the Texas Instruments CD4043BDW to avoid confusion with similar variants or alternative manufacturers offering comparable logic functions.

Latches Selection Notes

Select this component when a quad latch with tri-state outputs is required for data retention in digital systems. The wide voltage range allows compatibility with various logic families. Consider the SOIC package size for PCB layout constraints. Verify thermal management requirements given the extended temperature range specifications provided in the datasheet.

Latches Part Context

This component is part of the standard 4000 series CMOS logic family, known for high noise immunity and broad operating voltage ranges. The CD4043 variant specifically addresses applications needing multiple latched outputs with bus drive capabilities. It serves as a fundamental building block for sequential logic designs in consumer and industrial electronics.

Latches Replacement Considerations

The CD4043BDWE4 is a verified lead-free replacement variant offered by Texas Instruments. Other manufacturers may produce pin-compatible equivalents, but electrical characteristics should be cross-referenced carefully.