ST16C2550IJ44-F

UARTs (Universal Asynchronous Receiver Transmitter) Overview

The MaxLinear ST16C2550IJ44-F is a dual Universal Asynchronous Receiver/Transmitter (UART) interface integrated circuit designed for serial communication applications. It features two independent UART channels, each equipped with a 16-byte transmit and receive FIFO buffer to enhance data throughput and reduce CPU overhead. The device supports data rates up to 4 Mbps and operates within a supply voltage range of 2.97V to 5.5V. It is housed in a 44-pin PLCC package and is rated for an industrial temperature range of -40°C to +85°C. The component supports standard RS-232 and RS-485 protocols, making it suitable for robust serial communication in demanding environments.

UARTs (Universal Asynchronous Receiver Transmitter) Feature Summary

• Dual-channel architecture with independent 16-byte FIFO buffers for efficient data handling
• High-speed serial communication capability supporting data rates up to 4 Mbps
• Wide operating voltage range compatible with both 3.3V and 5V logic systems
• Industrial-grade temperature rating ensuring reliable performance in harsh conditions

UARTs (Universal Asynchronous Receiver Transmitter) Applications

• Industrial automation control systems requiring robust serial connectivity
• Telecommunications equipment utilizing RS-232 or RS-485 interfaces
• Embedded systems needing multiple asynchronous serial ports
• Medical instrumentation with strict environmental operating requirements

UARTs (Universal Asynchronous Receiver Transmitter) Procurement Notes

Verify the specific suffix 'IJ44' against official MaxLinear documentation to confirm the exact package type and temperature grade. Ensure compatibility with existing PCB footprints for the 44-pin PLCC configuration. Cross-reference the datasheet for any recent product change notices that may affect pinout or electrical characteristics before finalizing procurement plans.

UARTs (Universal Asynchronous Receiver Transmitter) Selection Notes

Select this component when dual UART functionality with FIFO buffering is required in space-constrained designs. The 44-pin PLCC package offers a compact solution compared to larger QFP options. Consider the 2.97V to 5.5V operating range if the system utilizes mixed voltage domains. Verify that the 4 Mbps maximum data rate meets the application's bandwidth requirements without excessive latency.

UARTs (Universal Asynchronous Receiver Transmitter) Part Context

The ST16C2550 series belongs to MaxLinear's VLIO UART family, providing versatile interface solutions for legacy and modern serial communication needs. This specific model integrates high-performance FIFOs to minimize processor intervention during data transfer. The series is widely used in industrial and commercial applications where reliable asynchronous serial communication is critical for system operation and data integrity.

UARTs (Universal Asynchronous Receiver Transmitter) Replacement Considerations

Check for direct pin-to-pin replacements within the ST16C2550 family, such as variants with different suffixes indicating package or temperature changes. Verify functional equivalence with other dual UART ICs featuring similar FIFO depths and voltage ranges. Ensure any substitute component maintains compatibility with the existing firmware and hardware design constraints.