PCA9515APWR

Signal Buffers, Repeaters, Splitters Overview

The PCA9515APWR 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 I2C devices, supporting multiple masters, arbitration, and clock stretching. The component functions reliably across an operating temperature range of -40°C to +85°C and is housed in an 8-TSSOP package.

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 ensuring stable system performance

Signal Buffers, Repeaters, Splitters Applications

• Extending I2C bus distance in embedded systems
• Isolating I2C peripherals from main bus noise
• Supporting multiple masters on a single I2C network

Signal Buffers, Repeaters, Splitters Procurement Notes

Verify the specific suffix 'PWR' corresponds to the TSSOP-8 package variant when sourcing. Confirm RoHS compliance status through official manufacturer documentation or authorized distributor datasheets prior to procurement. Ensure design compatibility with the specified 2.3 V to 3.6 V supply voltage range.

Signal Buffers, Repeaters, Splitters Selection Notes

Select this component for applications requiring signal regeneration on I2C buses where standard drivers may fail due to capacitance or distance limitations. The dual-channel architecture allows simultaneous expansion of two independent bus segments. Verify that the target system voltage aligns with the 2.3 V to 3.6 V operational range to ensure proper functionality.

Signal Buffers, Repeaters, Splitters Part Context

The PCA9515A belongs to the Texas Instruments PCA95xx family of interface ICs, which includes repeaters, switches, and expanders. This specific model focuses on bidirectional buffering to maintain signal integrity across extended I2C networks. It complements other family members like the PCA9545A switch by providing physical layer signal restoration rather than logical channel selection.

Signal Buffers, Repeaters, Splitters Replacement Considerations

The PCA9515BDGKR is listed as a direct replacement alternative by Texas Instruments. Verify pinout compatibility and electrical specifications before substitution. Other variants within the PCA9515A series may offer different package options but should be evaluated for functional equivalence.