PCA9517DRG4

Signal Buffers, Repeaters, Splitters Overview

The PCA9517DRG4 is a dual bidirectional voltage-level translator manufactured by Texas Instruments. It facilitates communication between I2C and SMBus buses operating at different voltage levels, supporting frequencies up to 400 kHz. The device operates with a supply voltage range of 0.9 V to 5.5 V and features a propagation delay of 67 ns. Designed for surface-mount applications, it is housed in an SOIC-8 package. The component functions as a signal buffer and repeater, ensuring reliable data transmission across mixed-voltage interfaces within the specified temperature range.

Signal Buffers, Repeaters, Splitters Feature Summary

• Dual bidirectional voltage-level translation capability for I2C and SMBus protocols
• Supports bus frequencies up to 400 kHz with low propagation delay
• Wide operating supply voltage range from 0.9 V to 5.5 V

Signal Buffers, Repeaters, Splitters Applications

• Interfacing I2C/SMBus devices with different supply voltages
• Signal buffering and repeating on I2C/SMBus lines
• Voltage level shifting in mixed-signal systems

Signal Buffers, Repeaters, Splitters Procurement Notes

Verify the specific ordering suffix DRG4 to confirm the tape-and-reel packaging configuration and RoHS compliance status. Confirm the manufacturer's lifecycle status, as documentation indicates this part may be marked as Not Recommended for New Designs (NRND). Ensure compatibility with existing PCB footprints and design constraints before procurement.

Signal Buffers, Repeaters, Splitters Selection Notes

Select this component when dual-channel voltage translation is required for I2C or SMBus interfaces. Verify that the system voltage requirements fall within the 0.9 V to 5.5 V operating range. Consider the SOIC-8 package size for space-constrained designs. Evaluate the 400 kHz speed limit against application timing requirements.

Signal Buffers, Repeaters, Splitters Part Context

The PCA9517 belongs to Texas Instruments' family of interface ICs designed for I2C and SMBus applications. It serves as a successor or alternative to similar voltage translators, providing dual-channel functionality in a compact package. This series addresses the need for seamless integration between legacy and modern low-voltage digital systems.

Signal Buffers, Repeaters, Splitters Replacement Considerations

Check for direct pin-to-pin replacements within the same family. Verify if newer generations offer improved performance or extended lifecycle status. Consult official substitution guides for compatible alternatives if the NRND status impacts long-term availability.