PCA9614DPZ

Signal Buffers, Repeaters, Splitters Overview

The PCA9614DPZ is a two-channel multipoint Fast-mode Plus differential I2C-bus buffer manufactured by NXP USA Inc. It extends standard single-ended SMBus/I2C-bus connections through electrically noisy environments using a differential dI2C physical layer. The device operates with supply voltages VDD(A) ranging from 2.3 V to 5.5 V and VDD(B) ranging from 3.0 V to 5.5 V. It supports bus speeds up to 1 MHz, provides 30 mA drive capability, and features ESD protection exceeding 2000 V HBM. The component is housed in a TSSOP10 package.

Signal Buffers, Repeaters, Splitters Feature Summary

• Converts between single-ended I2C/SMBus signals and differential dI2C transmission lines for noise immunity
• Supports bidirectional signal flow without external direction control logic
• Includes an active HIGH enable pin with internal pull-up resistor for system isolation

Signal Buffers, Repeaters, Splitters Applications

• Monitoring remote temperature or leak detectors in harsh industrial environments
• Controlling power supplies within high-noise electrical settings
• Transmitting I2C-bus data between separate equipment cabinets
• Commercial lighting and industrial heating or cooling control systems

Signal Buffers, Repeaters, Splitters Procurement Notes

Verify the specific ordering suffix 'Z' indicates the Static Shielding Bag (SSB) packing method as documented in the product data sheet. Confirm that the component meets the required RoHS compliance standards and lead-free specifications before finalizing procurement orders.

Signal Buffers, Repeaters, Splitters Selection Notes

Select this component when extending I2C bus distances beyond one meter in electrically noisy environments. Ensure the application requires differential signaling to reject ground offsets up to half the supply voltage. Verify that the target devices are compatible with Fast-mode Plus speeds up to 1 MHz.

Signal Buffers, Repeaters, Splitters Part Context

This part belongs to the PCA9614 family of differential I2C-bus buffers designed by NXP Semiconductors. It serves as a bridge between conventional single-ended wired-OR buses and four-wire differential transmission lines, enabling robust communication over twisted-pair cables.

Signal Buffers, Repeaters, Splitters Replacement Considerations

The datasheet identifies the PCA9614DP as a drop-in replacement for the PCA9614DPZ according to PCN 202104008A. Verify packaging differences if transitioning between these variants.