ST16C550CQ48TR-F

UARTs (Universal Asynchronous Receiver Transmitter) Overview

The ST16C550CQ48TR-F is a single-channel Universal Asynchronous Receiver/Transmitter (UART) integrated circuit manufactured by MaxLinear. It features a 16-byte transmit and receive FIFO buffer to enhance data throughput and reduce CPU overhead. The device supports data rates up to 1.5 Mbps and operates within a supply voltage range of 2.97 V to 5.5 V. It is housed in a 48-pin Thin Quad Flat Package (TQFP) with dimensions of 7 mm x 7 mm. Key functional capabilities include automatic hardware flow control, modem control signals, and compatibility with Intel and Motorola bus protocols.

UARTs (Universal Asynchronous Receiver Transmitter) Feature Summary

• Integrates 16-byte transmit and receive FIFOs for efficient serial data handling
• Supports baud rates up to 1.5 Mbps with internal oscillator options
• Provides automatic hardware flow control and full modem control signal interfacing
• Compatible with standard RS-232 communication protocols

UARTs (Universal Asynchronous Receiver Transmitter) Applications

• Industrial automation systems requiring reliable serial communication
• Embedded controllers needing high-throughput UART interfaces
• Telecommunications equipment utilizing RS-232 standards
• Point-of-sale terminals and barcode scanners

UARTs (Universal Asynchronous Receiver Transmitter) Procurement Notes

Verify the manufacturer designation on the component marking, as Exar Corporation was acquired by MaxLinear. Confirm that the specific suffix matches the required package type and temperature grade. Ensure compliance with current RoHS directives before integration into final assemblies.

UARTs (Universal Asynchronous Receiver Transmitter) Selection Notes

Select this component when a single UART channel with moderate FIFO depth is sufficient. Compare against the ST16C552 or ST16C554 if multiple channels are required. Verify that the 48-pin TQFP footprint aligns with the PCB layout constraints and that the operating voltage range meets the system power supply specifications.

UARTs (Universal Asynchronous Receiver Transmitter) Part Context

This part belongs to the ST16C55x family of UART interface ICs, which are widely used in embedded applications. The series includes variants with one, two, and four channels, sharing common electrical characteristics and pinout structures where applicable. The ST16C550 specifically addresses single-channel needs within this portfolio.

UARTs (Universal Asynchronous Receiver Transmitter) Replacement Considerations

The SC16C550 from NXP is a pin-compatible alternative. Verify register compatibility and timing parameters before substitution. Other Exar/MaxLinear parts in the same family may offer different channel counts but share similar operational principles.