ST16C2550CQ48TR-F

UARTs (Universal Asynchronous Receiver Transmitter) Overview

The ST16C2550CQ48TR-F is a dual Universal Asynchronous Receiver/Transmitter (UART) integrated circuit manufactured by MaxLinear. It features two independent UART channels, each equipped with 16-byte transmit and receive FIFOs to enhance data throughput and reduce CPU overhead. The device supports high-speed serial communication with a maximum data rate of 4 Mbps. It operates within a supply voltage range of 2.97 V to 5.5 V, ensuring compatibility with both 3.3 V and 5 V logic systems. The component is housed in a 48-pin TQFP surface-mount package, suitable for space-constrained designs. It is rated for an industrial operating temperature range from -40°C to +85°C.

UARTs (Universal Asynchronous Receiver Transmitter) Feature Summary

• Dual-channel architecture with dedicated 16-byte FIFOs for efficient data buffering
• Supports high-speed asynchronous serial communication up to 4 Mbps
• Wide supply voltage operation compatible with 3.3 V and 5 V logic levels

UARTs (Universal Asynchronous Receiver Transmitter) Applications

• Industrial automation control systems requiring reliable serial communication
• Embedded systems with multiple serial peripheral interfaces
• Telecommunications equipment utilizing RS-232 or RS-485 protocols

UARTs (Universal Asynchronous Receiver Transmitter) Procurement Notes

Verify the specific suffix 'TR-F' indicates tape-and-reel packaging when sourcing components. Confirm the manufacturer designation as MaxLinear, Inc., noting historical lineage from National Semiconductor. Ensure the procurement channel provides valid RoHS compliance documentation. Cross-reference the full part number against current distributor catalogs to confirm availability status, as legacy interface ICs may have limited stock or end-of-life implications.

UARTs (Universal Asynchronous Receiver Transmitter) Selection Notes

Select this component when a design requires two independent UART interfaces with hardware flow control support. The 16-byte FIFO depth is sufficient for moderate data rates up to 4 Mbps, reducing processor interrupt frequency. Verify that the 48-pin TQFP footprint matches the PCB layout constraints. Ensure the system power supply remains stable between 2.97 V and 5.5 V to maintain signal integrity across the specified industrial temperature range.

UARTs (Universal Asynchronous Receiver Transmitter) Part Context

This part belongs to the ST16C2550 series of dual UART controllers. It is functionally similar to other industry-standard 16C2550 devices but packaged in a 48-pin TQFP format. The series is designed for applications needing multiple serial ports without external FIFO chips. Other variants in the family include DIP and PLCC packages with different temperature grades.

UARTs (Universal Asynchronous Receiver Transmitter) Replacement Considerations

Direct pin-to-pin replacements may include ST16C2550IP40 or ST16C2550CJ44-F, though these utilize PDIP-40 and PLCC-44 packages respectively, requiring adapter solutions or board redesign. Verify electrical compatibility regarding FIFO depth and maximum baud rates before substituting.