TCA9543APWR

Signal Switches, Multiplexers, Decoders Overview

The TCA9543APWR is a bidirectional translating switch manufactured by Texas Instruments, designed for I2C bus applications. It features two independent switches within a single package, enabling flexible routing of signals between different voltage domains. The device operates with a supply voltage range of 2.3 V to 5.5 V and supports an operating temperature range from -40°C to +85°C. Packaged in a 14-pin Thin Shrink Small Outline Package (TSSOP), it offers low power consumption and high reliability for embedded systems requiring multiple I2C devices.

Signal Switches, Multiplexers, Decoders Feature Summary

• Provides two independent bidirectional translating switches for flexible I2C bus configuration
• Supports voltage translation between different logic levels across the specified supply range
• Integrates interrupt logic and reset functionality for enhanced system control

Signal Switches, Multiplexers, Decoders Applications

• I2C bus expansion in multi-device embedded systems
• Voltage domain bridging in mixed-signal circuits
• System management interfaces requiring isolated bus segments

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify the specific suffix 'PWR' corresponds to the TSSOP-14 package and tape-and-reel orientation before ordering. Confirm that the interrupt logic and reset features align with your system requirements, as these are key differentiators from standard switches. Ensure compatibility with the 2.3 V to 5.5 V supply range for your target application environment.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this component when dual-channel I2C switching with voltage translation is required. The integrated interrupt and reset capabilities make it suitable for complex bus topologies where signal integrity and control are critical. Compare against the PCA9543A variant if interrupt logic is not needed, noting potential functional differences despite similar pinouts.

Signal Switches, Multiplexers, Decoders Part Context

This part belongs to the TCA9543A series of bidirectional translating switches. It shares architectural similarities with the PCA9543A but includes additional interrupt logic and reset features. The TSSOP-14 package provides a compact solution for space-constrained designs while maintaining robust electrical performance across industrial temperature ranges.

Signal Switches, Multiplexers, Decoders Replacement Considerations

The PCA9543APWRG4 is a documented alternative within the same family. Verify if the absence of interrupt logic in the PCA9543A variant meets your design needs. Both parts share the TSSOP-14 package and similar electrical characteristics, facilitating potential drop-in replacements after functional validation.