PCA9515ADRGR

Signal Buffers, Repeaters, Splitters Overview

The PCA9515ADRGR is a dual bidirectional I2C bus and SMBus repeater manufactured by Texas Instruments. It features two identical open-drain buffer circuits designed to extend I2C and similar bus systems without degrading performance. The device operates within a supply voltage range of 2.3V to 3.6V and supports data rates up to 400kHz. It accommodates standard mode and fast mode I2C devices, including multiple masters, while supporting arbitration and clock stretching across the repeater. The component is housed in an 8-pin VSSOP package and functions reliably within an operating temperature range of -40°C to +85°C.

Signal Buffers, Repeaters, Splitters Feature Summary

• Dual-channel bidirectional buffering for I2C and SMBus compatibility
• Supports mixed-mode signal operation with 5.5V tolerant inputs
• Lockup-free operation ensures stable system performance
• Powered-off high-impedance state prevents interference

Signal Buffers, Repeaters, Splitters Applications

• Extending I2C bus distance in embedded systems
• Connecting multiple masters on a single I2C bus
• Buffering SMBus signals in industrial control applications

Signal Buffers, Repeaters, Splitters Procurement Notes

Verify the specific suffix 'RGR' against the manufacturer's official datasheet to confirm tape-and-reel packaging details and RoHS compliance status. Ensure the ordering part number matches the exact package variant required for your PCB layout. Cross-reference with authorized distributors to confirm current availability and lead times for this specific reel quantity.

Signal Buffers, Repeaters, Splitters Selection Notes

Select this component when extending I2C or SMBus networks requires buffering without signal degradation. It is suitable for designs needing support for multiple masters and clock stretching. Verify that the 2.3V to 3.6V supply voltage range aligns with the system power rails. Consider the 8-VSSOP package dimensions for space-constrained layouts.

Signal Buffers, Repeaters, Splitters Part Context

The PCA9515A series includes variants such as PCA9515ADGKR and PCA9515BDGKR. These devices share the core functionality of dual bidirectional repeaters. Differences often lie in the package type, such as VSSOP versus SOIC, or specific electrical characteristics like propagation delay. The 'ADRGR' suffix typically denotes a specific tape-and-reel packaging option for automated assembly.

Signal Buffers, Repeaters, Splitters Replacement Considerations

PCA9515ADGKR is a direct pin-to-pin replacement with identical functionality but may differ in packaging format. PCA9515BDGKR offers similar buffering capabilities but may have different electrical specifications. Verify compatibility with existing I2C/SMBus protocols before substitution.