XR16C2850IJ-F

UARTs (Universal Asynchronous Receiver Transmitter) Overview

The XR16C2850IJ-F is a dual-channel Universal Asynchronous Receiver/Transmitter (UART) serial I/O controller manufactured by MaxLinear. It features integrated 128-byte transmit and receive FIFOs to enhance data throughput and reduce CPU intervention. The device supports asynchronous communication protocols with a maximum data rate of 0.78125 MBps and operates with a maximum clock frequency of 24 MHz. It utilizes an 8-bit external data bus and a 3-bit address bus for interface control. The component is housed in a 44-pin Plastic Quad Flat Package (PLCC) with dimensions of approximately 16.59 mm x 16.59 mm. It includes low-power operational modes and complies with RoHS standards.

UARTs (Universal Asynchronous Receiver Transmitter) Feature Summary

• Dual-channel architecture providing independent serial communication paths within a single integrated circuit.
• Integrated 128-byte FIFO buffers for both transmission and reception to minimize processor overhead.
• Support for standard asynchronous serial communication protocols with flexible baud rate generation capabilities.

UARTs (Universal Asynchronous Receiver Transmitter) Applications

• Industrial automation systems requiring reliable serial data exchange between controllers and peripheral devices.
• Embedded computing platforms utilizing Intel or Motorola bus interfaces for system expansion.
• Telecommunications equipment needing high-speed serial I/O connectivity for modem or network interface modules.

UARTs (Universal Asynchronous Receiver Transmitter) Procurement Notes

Verify the specific manufacturer source, as this component has been associated with both Exar Corporation and MaxLinear due to corporate acquisitions. Confirm that the ordering suffix corresponds to the lead-free and RoHS-compliant version. Ensure the package type matches the 44-pin PLCC specification required for your PCB footprint design before finalizing procurement orders.

UARTs (Universal Asynchronous Receiver Transmitter) Selection Notes

Select this component when a dual-channel UART solution with substantial FIFO buffering is required for applications exceeding standard 16550 compatibility limits. Consider the 44-pin PLCC package constraints during layout planning. Evaluate the 0.78125 MBps maximum data rate against system throughput requirements to ensure adequate performance margins for high-speed serial transfers.

UARTs (Universal Asynchronous Receiver Transmitter) Part Context

This part belongs to the XR16C2850 family of enhanced UART controllers. It serves as a successor to legacy single-channel UARTs by integrating two complete UART channels with advanced FIFO management. The device is designed to replace older serial interface chips in systems demanding higher data integrity and reduced CPU load for serial port management tasks.

UARTs (Universal Asynchronous Receiver Transmitter) Replacement Considerations

Direct pin-compatible replacements may be limited due to the specific dual-channel configuration. Verify functional equivalence with other XR16C28xx variants if available. Cross-reference with quad-channel UARTs like the XR16C854 series only if additional channel count is acceptable and software drivers support the expanded register set.