PCA9515ATP,147

Signal Buffers, Repeaters, Splitters Overview

The PCA9515ATP,147 is a CMOS integrated circuit designed for I2C-bus and SMBus systems. It functions as a two-channel bidirectional buffer that extends bus length by buffering SDA and SCL lines, supporting up to 400 pF per bus. The device operates within a supply voltage range of 2.3 V to 3.6 V and features 5.5 V tolerant inputs. It accommodates Standard-mode (100 kHz) and Fast-mode (400 kHz) devices, supports arbitration and clock stretching, and includes an active HIGH enable input with an internal pull-up.

Signal Buffers, Repeaters, Splitters Feature Summary

• Two-channel bidirectional buffering for I2C and SMBus extension
• Lock-up free operation with static offset design
• Supports mixed voltage buses and multiple masters
• Active HIGH repeater enable input

Signal Buffers, Repeaters, Splitters Applications

• Extending I2C bus capacitance limits in embedded systems
• Isolating high-speed master buses from slower slave peripherals
• Level shifting between different voltage domains on the same bus

Signal Buffers, Repeaters, Splitters Procurement Notes

Verify the ordering suffix '147' corresponds to the HWSON8 package variant. Confirm the manufacturer is NXP Semiconductors. Ensure the component meets RoHS compliance standards required for your assembly process. Check for moisture sensitivity level ratings before soldering.

Signal Buffers, Repeaters, Splitters Selection Notes

Select this part when system design requires extending I2C bus capacitance beyond standard limits or isolating voltage domains. Ensure the operating voltage falls within the 2.3 V to 3.6 V range. Verify that the HWSON8 package dimensions fit the PCB footprint constraints.

Signal Buffers, Repeaters, Splitters Part Context

This component belongs to the PCA9515A family of I2C repeaters manufactured by NXP Semiconductors. The specific model PCA9515ATP,147 denotes the HWSON8 package version. Other variants include SO8 and TSSOP8 packages, sharing identical electrical characteristics but differing in physical form factor.

Signal Buffers, Repeaters, Splitters Replacement Considerations

Direct substitutes include other PCA9515A variants such as PCA9515AD (SO8) or PCA9515ADP (TSSOP8). Cross-manufacturer equivalents may exist but require verification of pinout compatibility and electrical specifications.