PCA9515ADR

Signal Buffers, Repeaters, Splitters Overview

The PCA9515ADR is a dual bidirectional I2C bus and SMBus repeater manufactured by Texas Instruments. It operates within a supply voltage range of 2.3 V to 3.6 V, supporting maximum clock frequencies up to 400 kHz. The device features a propagation delay of 45 ns and an output current capability of 6 mA. It functions effectively across an industrial temperature range from -40°C to +85°C. Packaged in an SOIC-8 surface-mount format, the component includes an input capacitance of 7 pF and draws a typical operating supply current of 1 mA.

Signal Buffers, Repeaters, Splitters Feature Summary

• Provides signal buffering and re-driving for I2C and SMBus protocols to extend bus distance and increase fan-out capacity.

Signal Buffers, Repeaters, Splitters Applications

• Extending I2C bus length in embedded systems
• Increasing node count on SMBus networks
• Signal integrity improvement in high-capacitance bus environments

Signal Buffers, Repeaters, Splitters Procurement Notes

Verify the specific ordering suffix to confirm package type and tape/reel specifications. Confirm RoHS compliance status through official documentation. Check lifecycle status as components may be marked as Not Recommended for New Designs (NRND). Ensure compatibility with system voltage levels before integration.

Signal Buffers, Repeaters, Splitters Selection Notes

Select this component when dual-channel isolation or signal regeneration is required for I2C/SMBus buses. Verify that the 3.6 V maximum supply voltage aligns with the target system power rails. Consider the SOIC-8 footprint constraints during PCB layout planning. Evaluate thermal requirements against the specified -40°C to +85°C operating range.

Signal Buffers, Repeaters, Splitters Part Context

This part belongs to the PCA9515A series of interface ICs designed for bus extension. It serves as a solution for overcoming capacitance limits in standard I2C and SMBus architectures. The device complements other Texas Instruments interface solutions by providing dedicated repeater functionality without requiring complex protocol handling logic.

Signal Buffers, Repeaters, Splitters Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided data. Alternative designs should verify pinout compatibility and electrical parameter alignment with the original specification sheet.