PCA9517DR

Signal Buffers, Repeaters, Splitters Overview

The PCA9517DR is a dual bidirectional voltage-level translator manufactured by Texas Instruments, designed for I2C and SMBus applications. It operates within a supply voltage range of 900 mV to 5.5 V and supports data rates up to 400 kHz. The device features a propagation delay of 67 ns and draws 1.5 mA of operating current. Packaged in an SOIC-8 surface-mount format, it functions across an industrial temperature range from -40°C to +85°C.

Signal Buffers, Repeaters, Splitters Feature Summary

• Dual bidirectional voltage translation capability for interfacing different logic levels
• Supports standard I2C and SMBus communication protocols
• Integrated ESD protection mechanisms for signal integrity

Signal Buffers, Repeaters, Splitters Applications

• Interfacing low-voltage microcontrollers with higher voltage peripherals
• I2C bus extension in mixed-voltage systems
• SMBus level shifting in industrial control environments

Signal Buffers, Repeaters, Splitters Procurement Notes

Verify the NRND (Not Recommended for New Designs) status before procurement. Confirm RoHS compliance details via official datasheets. Ensure the SOIC-8 package matches PCB footprint requirements. Validate that the 900 mV minimum supply voltage aligns with system power rails. Check for alternative components if long-term availability is critical.

Signal Buffers, Repeaters, Splitters Selection Notes

Select this component when dual-channel voltage translation is required for I2C/SMBus buses. Ensure the operating voltage range covers both source and destination logic levels. Consider the 67 ns propagation delay for timing-sensitive applications. Verify thermal performance within the -40°C to +85°C range. Compare against single-channel alternatives if only one bus line requires translation.

Signal Buffers, Repeaters, Splitters Part Context

The PCA9517 belongs to the PCA9517 series of voltage translators. It serves as a bridge between different voltage domains in digital systems. The DR suffix indicates the SOIC-8 tape-and-reel packaging variant. This part facilitates seamless communication between devices operating at distinct voltage levels.

Signal Buffers, Repeaters, Splitters Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Consult manufacturer resources for direct replacements or pin-compatible alternatives.