PCA9515ADGKR

Signal Buffers, Repeaters, Splitters Overview

The PCA9515ADGKR 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 and supports data rates up to 400 kHz. The device features two identical open-drain buffer circuits, enabling the extension of I2C systems without performance degradation. It accommodates standard mode and fast mode devices, supporting multiple masters, arbitration, and clock stretching. The component is housed in an 8-VSSOP package and functions reliably across an operating temperature range of -40°C to +85°C.

Signal Buffers, Repeaters, Splitters Feature Summary

• Dual-channel bidirectional buffering for I2C and SMBus protocols
• Supports mixed-mode signal operation with 5.5V tolerant inputs
• Lockup-free operation ensures system stability during bus errors

Signal Buffers, Repeaters, Splitters Applications

• Extending I2C bus distance in embedded systems
• Connecting multiple masters on a single I2C bus
• Isolating downstream devices from upstream bus noise

Signal Buffers, Repeaters, Splitters Procurement Notes

Verify the specific suffix 'DGKR' corresponds to the 8-VSSOP package and tape-and-reel packaging configuration. Confirm RoHS compliance status and lead-free designation as per the manufacturer's current documentation. Ensure the part number matches the exact pinout and electrical specifications required for the design.

Signal Buffers, Repeaters, Splitters Selection Notes

Select this component when dual-channel I2C/SMBus repeating is required within a 3.6 V maximum supply constraint. It is suitable for applications needing lockup-free protection and support for multiple masters. Verify that the 8-VSSOP package fits the PCB layout constraints and that the 400 kHz speed meets the system timing requirements.

Signal Buffers, Repeaters, Splitters Part Context

This part belongs to the PCA9515A series of interface ICs designed for I2C and SMBus systems. It provides bidirectional translation and buffering capabilities. The device is intended to extend bus length and isolate loads while maintaining signal integrity for standard and fast mode operations.

Signal Buffers, Repeaters, Splitters Replacement Considerations

PCA9515BDGKR is a direct substitute within the same family. Verify package compatibility and electrical parameter alignment before substitution.