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1+US $0.60600US $0.61
10+US $0.40400US $4.04
30+US $0.30300US $9.09
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The PCA9515AD is an I2C bus and SMBus voltage-level translator manufactured by Texas Instruments. It is designed to provide bidirectional voltage-level translation between two I2C or SMBus devices operating at different voltage levels, enabling communication compatibility in mixed-voltage level systems.

Key Features:

  • Bidirectional Voltage-Level Translation: Facilitates bidirectional voltage-level translation between two I2C or SMBus devices operating at different voltage levels, ensuring compatibility and communication integrity.

  • Supports I2C and SMBus Standards: Compliant with I2C and SMBus communication standards, allowing seamless integration into systems utilizing these protocols.

  • Dual Supply Voltage Support: Supports operation with dual supply voltages, allowing translation between two voltage domains with different voltage levels.

  • Automatic Direction Detection: Automatically detects the direction of data flow and adjusts the translation direction accordingly, simplifying system design and operation.

  • Low Standby Current Consumption: Features low standby current consumption, minimizing power consumption when the device is idle or not actively transferring data.

  • Open-Drain I/O Compatibility: Compatible with open-drain I/O configurations commonly used in I2C and SMBus communication interfaces, ensuring flexibility and interoperability with various devices.

  • Latch-Up Performance: Exhibits robust latch-up performance, ensuring reliable operation in high-stress conditions and preventing latch-up-induced failures.

  • Wide Temperature Range: Operates over a wide temperature range, making it suitable for use in industrial, automotive, and consumer electronic applications with varying environmental conditions.


  • Mixed-Voltage I2C/SMBus Systems: Used in systems where I2C or SMBus devices operate at different voltage levels, enabling communication between devices with incompatible voltage levels.

  • Battery Management Systems: Integrated into battery management systems (BMS) for voltage-level translation between battery monitoring ICs and microcontrollers operating at different voltage levels.

  • Embedded Systems: Deployed in embedded systems, microcontroller-based platforms, and IoT (Internet of Things) devices for voltage-level translation between sensors, peripherals, and communication interfaces.

  • Automotive Electronics: Utilized in automotive electronic systems such as infotainment systems, body control modules, and ADAS (Advanced Driver-Assistance Systems) for voltage translation in mixed-voltage communication networks.

  • Industrial Automation: Integrated into industrial automation systems, PLCs (Programmable Logic Controllers), and control panels for voltage-level translation between sensors, actuators, and control units operating at different voltage levels.

  • Consumer Electronics: Used in consumer electronic devices such as smartphones, tablets, and wearables for voltage-level translation between system-on-chip (SoC) components and peripheral devices.

  • Data Acquisition Systems: Deployed in data acquisition systems, data loggers, and measurement instruments for voltage-level translation between analog-to-digital converters (ADCs), digital-to-analog converters (DACs), and microcontrollers.

  • Networking Equipment: Integrated into networking equipment such as routers, switches, and network appliances for voltage-level translation between interface ICs, PHYs (Physical Layer Transceivers), and system controllers.


Functional Equivalent (FE) materials, including Fused Filament Fabrication (FFF) form, assembly, and functionally compatible substitute materials.


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