XR16M654IQ100-F

UARTs (Universal Asynchronous Receiver Transmitter) Overview

The XR16M654IQ100-F is a quad Universal Asynchronous Receiver and Transmitter (UART) integrated circuit manufactured by MaxLinear. It features four independent channels, each equipped with 64-byte transmit and receive FIFOs. The device supports data rates up to 16 Mbps at a 4X sampling rate and operates within a supply voltage range of 1.62V to 3.63V. It includes automatic hardware and software flow control, IrDA encoder/decoder capabilities, and an internal loopback function. The component is housed in a 100-pin QFP package and is compatible with Intel and Motorola bus interfaces.

UARTs (Universal Asynchronous Receiver Transmitter) Feature Summary

• Four independent UART channels with 64-byte transmit and receive FIFOs
• Support for Intel and Motorola data bus interface modes
• Automatic hardware (RTS/CTS) and software (Xon/Xoff) flow control
• Wireless Infrared (IrDA 1.0) encoder and decoder integration

UARTs (Universal Asynchronous Receiver Transmitter) Applications

• Telecommunication network routers
• Ethernet network routers
• Cellular data devices
• Factory automation and process controls

UARTs (Universal Asynchronous Receiver Transmitter) Procurement Notes

Verify the specific suffix 'F' against the manufacturer's official documentation to confirm packaging details such as tray or reel configuration. Ensure the 100-pin QFP package variant matches the target PCB footprint requirements. Confirm RoHS compliance status through the latest datasheet revision before finalizing procurement specifications.

UARTs (Universal Asynchronous Receiver Transmitter) Selection Notes

Select this component when a quad UART solution with high-speed data rates up to 16 Mbps is required. The 100-pin QFP package provides additional FIFO status outputs and separate infrared transmit pins not available in smaller packages. Ensure the design supports the 1.62V to 3.63V operating voltage range and utilizes the appropriate Intel or Motorola bus interface mode via the 16/68# pin.

UARTs (Universal Asynchronous Receiver Transmitter) Part Context

The XR16M654 series is part of MaxLinear's VLIO UART product line, designed to replace legacy industry standard UARTs like the ST16C554. The IQ100 variant specifically refers to the 100-lead QFP package option within the XR16M654 family, offering enhanced features such as channel C external clock input and individual FIFO ready signals for all four channels.

UARTs (Universal Asynchronous Receiver Transmitter) Replacement Considerations

The XR16M654 is pin-to-pin compatible with the ST16C654B and SC16C654B. Verify that the replacement device supports the same 100-pin QFP package and retains the necessary FIFO trigger level programming and interrupt output configurations for the existing system design.