TCA9543ADR

Signal Switches, Multiplexers, Decoders Overview

The TCA9543ADR is a bidirectional translating switch manufactured by Texas Instruments, designed for I2C bus applications. It features two independent switches housed in a 14-pin SOIC package. The device operates within a supply voltage range of 2.3 V to 5.5 V and supports an operating temperature range from -40°C to +85°C. Key electrical specifications include a maximum on-resistance of 50 Ohms and a maximum power dissipation of 400 mW. The component draws a maximum supply current of 50 uA.

Signal Switches, Multiplexers, Decoders Feature Summary

• Provides bidirectional signal translation between different voltage domains
• Enables flexible I2C bus topology expansion through independent channel switching
• Supports interrupt logic and reset functionality for system management

Signal Switches, Multiplexers, Decoders Applications

• I2C bus topology expansion
• Voltage domain translation
• System control interfaces

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify the specific suffix 'ADR' corresponds to the SOIC-14 package and industrial temperature grade (-40°C to +85°C). Confirm RoHS compliance status via the official datasheet before integration. Ensure the ordering part number matches the required tape-and-reel quantity specified by the manufacturer for production runs.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this component when designing systems requiring isolation between multiple I2C devices or voltage levels. The 2-channel configuration suits applications needing limited bus separation. Verify that the 50 Ohm on-resistance meets the signal integrity requirements of the target communication speed and load capacitance.

Signal Switches, Multiplexers, Decoders Part Context

This part belongs to the TCA9543A series of bidirectional translating switches. It serves as a solution for managing complex I2C networks where address conflicts or voltage mismatches occur. The ADR suffix specifically denotes the SOIC-14 surface-mount package variant suitable for automated assembly processes.

Signal Switches, Multiplexers, Decoders Replacement Considerations

The PCA9543ADR is a verified substitute offering identical functional specifications and pinout compatibility within the same package.