PCA9600D,118

Signal Buffers, Repeaters, Splitters Overview

The PCA9600D,118 is a dual bidirectional bus buffer designed to isolate I2C-bus capacitance for long-distance point-to-point or multipoint applications. It supports up to 4000 pF on the buffered side and operates at speeds of at least 1 MHz. The device features a supply voltage range of 2.5 V to 15 V with logic levels independent of VCC. Key electrical parameters include a typical supply current of 5.2 mA at 5 V, an input capacitance of less than 10 pF, and a maximum propagation delay of 100 ns. It provides 60 mA sink capability on TX/TY outputs and includes ESD protection exceeding 3500 V HBM.

Signal Buffers, Repeaters, Splitters Feature Summary

• Splits bidirectional I2C signals into unidirectional paths for galvanic isolation via opto-couplers
• Temperature-stabilized logic thresholds ensure compatibility with SMBus and TTL-level systems
• High drive strength allows operation over long cables with high capacitive loads

Signal Buffers, Repeaters, Splitters Applications

• Interface between I2C buses operating at different logic levels (e.g., 5 V, 3 V, 15 V)
• Long-distance point-to-point or multipoint I2C architectures
• Galvanic isolation of I2C nodes using opto-couplers

Signal Buffers, Repeaters, Splitters Procurement Notes

Verify component authenticity through authorized NXP channels. Confirm package marking matches SO8 specifications. Check RoHS compliance documentation. Ensure storage conditions meet moisture sensitivity level requirements before reflow soldering.

Signal Buffers, Repeaters, Splitters Selection Notes

Select this part when isolating I2C capacitance is required for extended bus lengths. Suitable for interfacing non-I2C compliant buses like SMBus. Verify that the buffered side load does not exceed the 60 mA sink capability. Consider thermal resistance if operating near temperature limits.

Signal Buffers, Repeaters, Splitters Part Context

This component belongs to the PCA9600 series of dual bidirectional bus buffers. It serves as a higher-speed upgrade to the P82B96, offering improved performance at Fast-mode Plus speeds. The series is designed for robust I2C signal transmission across varying voltage domains.

Signal Buffers, Repeaters, Splitters Replacement Considerations

PCA9600DPZ is a drop-in alternate for PCA9600DP,118. Verify pinout compatibility and packaging differences before substitution.