PI7C9X760CZDE

Controllers Overview

The PI7C9X760CZDE is a single-channel full-duplex UART bridge controller manufactured by Diodes Incorporated. It converts I2C-bus or SPI protocols to RS-232/RS-485 serial data. The device features 64-byte transmitter and receiver FIFOs, supports baud rates up to 16 Mbit/s with a 4X sampling clock, and operates at supply voltages of 1.8V, 2.5V, or 3.3V. It utilizes a 24-pin TQFN package (4x4mm) and maintains backward compatibility with the 16C450 register set.

Controllers Feature Summary

• Supports I2C-bus fast speed slave mode and SPI mode 0 slave mode with speeds up to 33 Mbps.
• Includes programmable hardware flow control using RTS/CTS signals and software flow control with Xon/Xoff characters.
• Features automatic RS-485 driver direction control via the RTS signal and built-in IrDA encoder/decoder interface.
• Provides up to eight user-programmable general-purpose I/O pins and internal loopback mode.

Controllers Applications

• Industrial computing systems
• Factory process control automation
• Mobile computing devices
• Battery operated embedded applications

Controllers Procurement Notes

Verify the specific suffix 'CZDE' against the manufacturer's current datasheet to confirm package type and tape-and-reel specifications. Confirm RoHS compliance status and check for any product change notices regarding pinout or electrical characteristics before finalizing procurement orders.

Controllers Selection Notes

Select this component when a small footprint UART bridge is required for I2C or SPI to serial conversion. Ensure the host system supports the required interface modes and that the voltage levels match the 1.8V, 2.5V, or 3.3V operating range. Verify that the 24-pin TQFN package fits the PCB layout constraints.

Controllers Part Context

This part belongs to the PI7C9X760 family of UART bridge controllers from Diodes Incorporated. It shares functional similarities with other variants in the series but differs in packaging and specific ordering suffixes. The device is designed to replace legacy UARTs while offering modern interface capabilities and lower power consumption.

Controllers Replacement Considerations

The PI7C9X760BZDEX is listed as a discontinued direct substitute for similar configurations. Verify pin compatibility and register set alignment when considering alternative packages within the same product family.

Controllers FAQ

How is the I2C/SPI interface selected?

The interface is selected via the I2C/SPI pin. A HIGH logic level selects the I2C-bus interface, while a LOW logic level selects the SPI interface.

What is the maximum SPI clock speed supported?

The device supports SPI clock speeds up to 33 Mbps in slave mode only.

Does the device support IrDA communication?

Yes, it includes a built-in IrDA encoder and decoder interface supporting SIR speeds up to 115.2 kbit/s, with optional support for 1.152 Mbps.