PCA9515BDGKR

Signal Buffers, Repeaters, Splitters Overview

The PCA9515BDGKR is a dual bidirectional I2C and SMBus repeater manufactured by Texas Instruments. It extends bus systems without degrading performance, supporting Standard Mode (100 kHz) and Fast Mode (400 kHz). The device operates with a supply voltage range of 2.3 V to 3.6 V and features an absolute propagation delay of 45 ns. It accommodates multiple masters, supports arbitration, and handles clock stretching across the repeater. The component is housed in an 8-pin VSSOP package and operates within a temperature range of -40°C to +85°C.

Signal Buffers, Repeaters, Splitters Feature Summary

• Dual bidirectional buffer circuits enable extension of I2C and SMBus systems while maintaining signal integrity.
• Supports mixed-mode signal operation with 5.5V tolerant I/O pins for compatibility with various logic levels.
• Ensures lockup-free operation and powered-off high-impedance state to prevent bus contention.

Signal Buffers, Repeaters, Splitters Applications

• Extending I2C bus distance in embedded systems
• Connecting multiple masters on a single I2C bus
• SMBus system expansion and signal conditioning

Signal Buffers, Repeaters, Splitters Procurement Notes

Verify the specific suffix DGKR corresponds to the VSSOP-8 tape and reel packaging configuration. Confirm RoHS compliance status and check for any recent Product Change Notifications regarding pinout or electrical characteristics before finalizing procurement specifications.

Signal Buffers, Repeaters, Splitters Selection Notes

Select this component when dual-channel bidirectional buffering is required for I2C or SMBus networks. Ensure the operating voltage aligns with the 2.3 V to 3.6 V range. Consider the 45 ns propagation delay for timing-critical applications requiring fast mode support up to 400 kHz.

Signal Buffers, Repeaters, Splitters Part Context

This part belongs to the Texas Instruments PCA9515 family of I2C and SMBus interface devices. It serves as a signal buffer and repeater designed to overcome capacitance limitations and extend the reach of standard two-wire bus protocols in complex electronic designs.

Signal Buffers, Repeaters, Splitters Replacement Considerations

The PCA9515ADGKR is a documented direct substitute within the same family. Verify that the alternative variant meets the specific voltage and package requirements for the target application.