CD40257BPWR

Signal Switches, Multiplexers, Decoders Overview

The CD40257BPWR is a CMOS quad 2-line-to-1-line data selector/multiplexer 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 features four independent multiplexers, each selecting one of two data inputs based on a common select line. It utilizes a 16-pin TSSOP surface-mount package with a width of 4.4 mm. The component provides balanced propagation delays for both high-to-low and low-to-high transitions, ensuring reliable signal routing in digital logic applications.

Signal Switches, Multiplexers, Decoders Feature Summary

• Integrates four independent 2-input multiplexers controlled by a single select line
• Operates across a wide DC supply voltage range suitable for various logic families
• Supports extended industrial temperature ranges for harsh environment reliability
• Utilizes standard CMOS technology for low power consumption

Signal Switches, Multiplexers, Decoders Applications

• Data routing in digital communication systems
• Signal selection in microcontroller peripheral interfaces
• Multiplexing analog or digital signals for monitoring circuits

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify the specific suffix 'PWR' corresponds to the TSSOP-16 package and RoHS compliance status as defined in the official Texas Instruments datasheet. Confirm that the manufacturing date code aligns with current production availability, as older revisions may differ in packaging or material composition. Ensure compatibility with your assembly process regarding moisture sensitivity levels and reflow soldering profiles specified for this package type.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this component when a compact solution for routing multiple data lines is required without external control logic. The quad configuration reduces board space compared to discrete gates. Verify that the input voltage levels match the system's logic thresholds at the minimum operating voltage. Consider the thermal performance of the TSSOP package if the application involves high ambient temperatures or limited airflow.

Signal Switches, Multiplexers, Decoders Part Context

This part belongs to the CD4000B series of CMOS logic devices, which are widely used in general-purpose digital applications. The CD40257 variant specifically addresses the need for multi-channel data selection. It serves as a fundamental building block in complex digital systems where signal path flexibility is critical. The device complements other logic gates and switches within the same family to create integrated control architectures.

Signal Switches, Multiplexers, Decoders Replacement Considerations

Check for direct pin-compatible alternatives such as the CD4052B or CD4067B depending on channel count requirements. Verify functional equivalence regarding propagation delay and output drive capability before substitution. Ensure that any replacement maintains the same supply voltage range and package dimensions to fit existing footprints.