PCA9600DP,118

Signal Buffers, Repeaters, Splitters Overview

The PCA9600DP,118 is a dual bidirectional bus buffer designed to isolate I2C-bus capacitance for point-to-point or multipoint applications up to 4000 pF. It operates at speeds of at least 1 MHz and supports Fast-mode Plus (Fm+) specifications. The device features temperature-stabilized logic voltage levels at the SX/SY interface, allowing compatibility with non-I2C buses like SMBus or PMBus. It separates bidirectional signals into unidirectional TX/RX paths for balanced transmission or galvanic isolation. Supply voltage ranges from 2.5 V to 15 V, with an operating temperature range of -40 °C to +85 °C.

Signal Buffers, Repeaters, Splitters Feature Summary

• Isolates high capacitance loads on buffered buses while maintaining standard I2C logic levels on the controller side
• Splits bidirectional I2C signals into separate transmit and receive paths for differential or isolated transmission
• Provides strong sink current capability on buffered outputs to drive low-impedance or long-distance cables

Signal Buffers, Repeaters, Splitters Applications

• Interface between I2C-buses operating at different logic levels such as 5 V, 3 V, or 15 V
• Long-distance point-to-point or multipoint I2C architectures using twisted pair cables
• Galvanic isolation of I2C nodes via opto-couplers or magnetic couplers
• Conversion of I2C signals to multi-drop differential bus hardware

Signal Buffers, Repeaters, Splitters Procurement Notes

Verify the specific package type TSSOP8 against the design footprint requirements. Confirm that the ordering suffix ,118 corresponds to the reel packing method required for the assembly line. Ensure the component meets the RoHS directive specifications before final integration.

Signal Buffers, Repeaters, Splitters Selection Notes

Select this component when driving I2C buses with capacitance exceeding standard limits or requiring operation over long cable distances. It serves as a higher-speed alternative to the P82B96, offering improved propagation delays and Fm+ compatibility. Ensure the application does not require interconnecting multiple SX/SY pins directly.

Signal Buffers, Repeaters, Splitters Part Context

This part belongs to the PCA9600 series of dual bidirectional bus buffers manufactured by NXP Semiconductors. It is functionally similar to the PCA9600D but utilizes a TSSOP8 plastic thin shrink small outline package instead of the SO8 variant. Both packages share identical electrical characteristics and pin configurations.

Signal Buffers, Repeaters, Splitters Replacement Considerations

PCA9600DPZ is a drop-in alternate for PCA9600DP,118. Verify that the static shielding bag packaging requirement of the alternate part aligns with storage and handling protocols.