PCA9601DPZ

Signal Buffers, Repeaters, Splitters Overview

The PCA9601DPZ is a dual bidirectional bus buffer designed to isolate I2C-bus capacitance, supporting up to 4000 pF on the buffered side. It operates with a supply voltage range of 2.5 V to 15 V and supports speeds up to 1 MHz. The device features a 15 mA sink capability at SX/SY for Fast-mode Plus buses with 470 pF loads. It isolates logic levels independent of VCC, allowing interfacing with SMBus or TTL systems. Operating temperature ranges from -40 °C to +85 °C. The TSSOP-8 package provides pin-compatible isolation between standard I2C nodes and high-capacitance remote buses.

Signal Buffers, Repeaters, Splitters Feature Summary

• Splits I2C-bus signals into unidirectional TX/RX pairs for galvanic isolation
• Temperature-stabilized logic thresholds at SX/SY interface
• High drive capability for long-distance communication
• ESD protection exceeding 3500 V HBM

Signal Buffers, Repeaters, Splitters Applications

• Interface between I2C-buses operating at different logic levels
• Long distance point-to-point or multipoint architectures
• Interfaces with opto-couplers for opto-isolation
• Conversion of I2C-bus signals to differential bus hardware

Signal Buffers, Repeaters, Splitters Procurement Notes

Verify the component matches the specific NXP datasheet revision 3.1 specifications. Confirm the TSSOP-8 package marking corresponds to the '9601' identifier. Ensure the ordering suffix aligns with the Static Shielding Bag packing method. Cross-reference the manufacturer part number against official distributor catalogs to validate authenticity before integration.

Signal Buffers, Repeaters, Splitters Selection Notes

Select this component when isolating I2C buses with high capacitance loads exceeding standard limits. It is suitable for applications requiring operation up to 1 MHz over extended cable lengths. Use this buffer to bridge voltage domains, such as connecting 3.3 V masters to 5 V or 15 V slave devices. Ensure the design accommodates the split TX/RX signal paths if utilizing external isolation components.

Signal Buffers, Repeaters, Splitters Part Context

This component belongs to the PCA9601 series of dual bidirectional bus buffers. It serves as a higher-speed and higher-drive alternative to the P82B96 and PCA9600 models. The device is specifically engineered to support Fast-mode Plus (Fm+) specifications while maintaining compatibility with standard I2C logic levels across a wide supply voltage range.

Signal Buffers, Repeaters, Splitters Replacement Considerations

PCA9601DP,118 is a confirmed drop-in alternate.