ST16C2550IQ48-F

UARTs (Universal Asynchronous Receiver Transmitter) Overview

The ST16C2550IQ48-F is a dual-channel Universal Asynchronous Receiver/Transmitter (UART) manufactured by MaxLinear. It operates within a supply voltage range of 2.97V to 5.5V and supports data rates up to 4 Mbps. The device features 16-byte transmit and receive FIFOs for each channel, enhancing throughput efficiency. It is housed in a 48-pin TQFP surface-mount package with dimensions of 9.2mm length and 1.2mm height. The component functions reliably across an operating temperature range of -40°C to +85°C.

UARTs (Universal Asynchronous Receiver Transmitter) Feature Summary

• Dual UART channels supporting RS485 and RS232 standards
• Integrated 16-byte transmit and receive FIFOs per channel
• High-speed operation up to 4 Mbps
• Wide supply voltage compatibility from 2.97V to 5.5V

UARTs (Universal Asynchronous Receiver Transmitter) Applications

• Industrial communication systems requiring multi-port serial connectivity
• Embedded controllers needing high-speed asynchronous data transfer
• Equipment utilizing RS485 or RS232 interface protocols

UARTs (Universal Asynchronous Receiver Transmitter) Procurement Notes

Verify the manufacturer designation as MaxLinear, noting previous branding under Exar. Confirm the specific suffix IQ48 corresponds to the 48-pin TQFP package variant. Ensure the order matches the exact part number ST16C2550IQ48-F to guarantee correct pinout and electrical specifications. Cross-reference datasheets for any recent revisions affecting functionality.

UARTs (Universal Asynchronous Receiver Transmitter) Selection Notes

Select this component when two independent UART interfaces are required in a compact surface-mount form factor. It is suitable for designs needing support for both RS485 and RS232 protocols without external transceivers if integrated. Consider the 4 Mbps speed limit and 16-byte FIFO depth against system throughput requirements. Verify that the 48-pin TQFP footprint fits the PCB layout constraints.

UARTs (Universal Asynchronous Receiver Transmitter) Part Context

This part belongs to the ST16C255x series of UART controllers. It shares architectural similarities with single-channel variants like the ST16C1550 but provides doubled I/O capacity. The device continues the legacy of Exar UART products now managed by MaxLinear, maintaining pin and register compatibility with industry-standard predecessors.

UARTs (Universal Asynchronous Receiver Transmitter) Replacement Considerations

Check for direct equivalents such as the ST16C2550 from other manufacturers offering identical pinouts. Verify functional compatibility with existing firmware drivers designed for standard UART registers. Ensure thermal and voltage specifications match the original design parameters before substitution.