XR16C2850CJTR-F

UARTs (Universal Asynchronous Receiver Transmitter) Overview

The XR16C2850CJTR-F is a dual universal asynchronous receiver and transmitter (DUART) integrated circuit manufactured by MaxLinear, Inc. It features two independent serial communication channels with 128-byte transmit and receive FIFOs for each channel. The device supports data rates up to 6.25 Mbps and operates on a single supply voltage ranging from 2.97 V to 5.5 V. It is housed in a 44-pin Plastic Quad Flat Package (PQFP) with a trailing lead configuration. The component includes an internal oscillator, IrDA encoder/decoder, and false start bit detection capabilities.

UARTs (Universal Asynchronous Receiver Transmitter) Feature Summary

• Dual UART architecture with independent 128-byte FIFO buffers per channel
• Integrated IrDA encoder and decoder for infrared communication support
• Internal oscillator eliminates the need for external clock components
• False start bit detection prevents erroneous data reception

UARTs (Universal Asynchronous Receiver Transmitter) Applications

• Industrial control systems requiring reliable serial communication
• Point-of-sale terminals and embedded computing devices
• Telecommunications equipment utilizing RS-232 or RS-485 interfaces
• Medical instrumentation with multiple serial peripheral connections

UARTs (Universal Asynchronous Receiver Transmitter) Procurement Notes

Verify the specific suffix 'CJTR' against official MaxLinear documentation to confirm package type and tape-and-reel orientation. Ensure compatibility with existing PCB footprints for the 44-pin PQFP variant. Confirm RoHS compliance status through current datasheets as manufacturing sources may vary.

UARTs (Universal Asynchronous Receiver Transmitter) Selection Notes

Select this component when dual high-speed serial ports are required within a compact footprint. The 128-byte FIFOs reduce CPU overhead compared to standard UARTs. Verify that the operating temperature range meets system requirements and that the 5V tolerant inputs align with the host logic levels.

UARTs (Universal Asynchronous Receiver Transmitter) Part Context

This part belongs to the XR16C2850 series of DUARTs, which are successors to earlier Exar designs acquired by MaxLinear. The series is characterized by high-performance FIFOs and comprehensive modem control signals. It serves as a bridge between parallel microprocessor buses and asynchronous serial peripherals.

UARTs (Universal Asynchronous Receiver Transmitter) Replacement Considerations

Direct pin-compatible replacements include the XR16C2850CJ and XR16C2850CM variants, depending on the required package style. Cross-reference with the XR16C2850CP for DIP packaging needs. Always verify electrical parameters against the latest datasheet before substitution.