PI7C9X762CZHE

Controllers Overview

The PI7C9X762CZHE is a dual-channel full-duplex UART bridge controller manufactured by Diodes Incorporated. It converts I²C-bus or SPI protocols to RS-232/RS-485/RS-422 serial interfaces. The device supports up to 33Mbps SPI clock speeds and baud rates up to 16Mbit/s with a 4X sampling clock rate. It features 64-byte TX/RX FIFOs, programmable character formatting (5-8 bits, parity, stop bits), and automatic hardware/software flow control. Operating voltages are 1.8V, 2.5V, or 3.3V, with an industrial temperature range of -40°C to 85°C. It includes up to eight programmable GPIO pins and is housed in a 32-pin TQFN package.

Controllers Feature Summary

• Dual-channel full-duplex UART with 64-byte transmitter and receiver FIFOs
• Backward compatible with the industrial standard 16C450 register set
• Supports I²C-bus fast speed slave mode and SPI mode 0 with up to 33Mbps clock
• Integrated IrDA encoder/decoder supporting SIR speeds up to 1.152Mbit/s

Controllers Applications

• Industrial Computing
• Automation and Factory Process Control
• Mobile Computing and Embedded Applications
• Battery Operated Devices
• Networking

Controllers Procurement Notes

Verify the specific suffix 'CZHE' against the manufacturer's official documentation to confirm pinout and interface configuration. Confirm RoHS compliance and lead-free status requirements for your assembly process. Ensure the selected package matches the PCB footprint specifications provided in the datasheet.

Controllers Selection Notes

Select this component when bidirectional protocol conversion between I²C/SPI and UART is required. It is suitable for applications needing low standby current and support for fractional baud rates. Consider the 32-pin TQFN package size for cost-efficient, handheld designs requiring multiple UART channels.

Controllers Part Context

This part belongs to the PI7C9X762 product line from Diodes Incorporated. It serves as a high-performance bridge controller designed to replace legacy UARTs while adding modern bus interface capabilities. The device is intended for systems requiring robust serial communication with minimal software overhead.

Controllers Replacement Considerations

The internal register set is backward-compatible with the 16C450 UART. Designers migrating from standard 16C450 components can utilize existing software drivers with minimal modifications due to this compatibility.