PI7C9X1170BCLEX

Controllers Overview

The PI7C9X1170BCLEX 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/RS-422 serial data. The device features 64-byte transmitter and receiver FIFOs, supports baud rates up to 16Mbit/s with 4X sampling, and handles SPI clock speeds up to 33Mbit/s. It operates on a wide voltage range of 1.62V to 3.6V (1.8V, 2.5V, or 3.3V) and includes up to eight programmable GPIO pins. The internal register set is backward-compatible with the industrial standard 16C450 UART.

Controllers Feature Summary

• Supports I2C-bus or SPI interface for protocol conversion
• Includes 64-byte TX/RX FIFOs with programmable trigger levels
• Provides hardware and software flow control capabilities
• Features automatic RS-485 driver direction control via RTS signal

Controllers Applications

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

Controllers Procurement Notes

Verify the specific suffix 'BCLEX' against official Diodes Incorporated documentation to confirm package type and temperature rating. Ensure the ordering information matches the exact datasheet revision DS40307 Rev 8-2. Confirm availability through authorized distributors as lead times may vary.

Controllers Selection Notes

Select this component when a small footprint solution is required for converting I2C or SPI signals to UART. It is suitable for battery-operated devices due to low standby current. Verify that the host system supports the required I2C or SPI modes and that the voltage levels align with the 1.62V to 3.6V operating range.

Controllers Part Context

This part belongs to the PI7C9X1170 product line from Diodes Incorporated, which specializes in interface ICs. The series is designed for cost-efficient applications requiring high-performance UART bridging in compact packages like TQFN.

Controllers Replacement Considerations

Check for direct substitutes within the PI7C9X1170 family, such as variants with different packaging or temperature ranges. Ensure any replacement maintains compatibility with the 16C450 register set and supports the necessary I2C/SPI interfaces.