PCA9515APWRG4

Signal Buffers, Repeaters, Splitters Overview

The PCA9515APWRG4 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 that extend bus capacitance limits without degrading performance. It accommodates standard-mode and fast-mode I2C devices, supporting arbitration and clock stretching across the repeater. The component is housed in an 8-TSSOP package with dimensions of 3.00 mm width and operates over a temperature range of -40 °C to +85 °C.

Signal Buffers, Repeaters, Splitters Feature Summary

• Dual-channel bidirectional buffering for I2C and SMBus systems
• Supports mixed-mode signal operation with 5.5 V tolerant inputs
• Lock-up-free operation ensures reliable bus communication

Signal Buffers, Repeaters, Splitters Applications

• Extending I2C bus length beyond standard capacitance limits
• Isolating high-speed buses from low-speed or noisy segments
• Enabling multiple masters on a single bus topology

Signal Buffers, Repeaters, Splitters Procurement Notes

Verify the specific suffix 'PWRG4' against the manufacturer's current datasheet to confirm the TSSOP-8 package and lead-free RoHS compliance status. Ensure the operating environment remains within the specified -40 °C to +85 °C temperature range and that the supply voltage does not exceed 3.6 V during normal operation.

Signal Buffers, Repeaters, Splitters Selection Notes

Select this component when system design requires extending I2C bus capacitance beyond 400 pF or isolating distinct bus segments. It is suitable for applications needing bidirectional translation between different voltage domains, such as 3.3 V and 5 V systems, provided the input pins are rated for 5.5 V tolerance.

Signal Buffers, Repeaters, Splitters Part Context

This part belongs to the PCA9515A family of interface ICs designed for I2C and SMBus systems. It functions as a biCMOS integrated circuit intended to buffer both data (SDA) and clock (SCL) lines. The device allows system designers to isolate two halves of a bus, thereby accommodating more devices or longer cable lengths than standard limits permit.

Signal Buffers, Repeaters, Splitters Replacement Considerations

The PCA9515ADGKR is a direct functional substitute offering identical electrical characteristics but utilizes an 8-VSSOP package instead of the TSSOP-8 form factor. Verify pin-to-pin compatibility and thermal requirements before substituting.