ST16C2550CJ44TR-F

UARTs (Universal Asynchronous Receiver Transmitter) Overview

The ST16C2550CJ44TR-F is a dual universal asynchronous receiver and transmitter (UART) manufactured by MaxLinear. It features two independent UART channels, each equipped with 16-byte transmit and receive FIFOs to reduce CPU bandwidth requirements. The device supports data rates up to 4 Mbps using an external clock or up to 1.5 Mbps with a 24 MHz crystal. It operates on a single power supply ranging from 2.97 V to 5.5 V and includes programmable baud rate generators, modem control signals, and internal loopback capabilities for diagnostics. The component is housed in a 44-pin PLCC package.

UARTs (Universal Asynchronous Receiver Transmitter) Feature Summary

• Dual independent UART channels with 16-byte FIFOs
• Supports data rates up to 4 Mbps
• Integrated programmable baud rate generator
• Modem control interface with status registers

UARTs (Universal Asynchronous Receiver Transmitter) Applications

• Portable appliances
• Telecommunication network routers
• Ethernet network routers
• Cellular data devices
• Factory automation and process controls

UARTs (Universal Asynchronous Receiver Transmitter) Procurement Notes

Verify the specific ordering suffix against official documentation to confirm package type and temperature range. Confirm current availability status as distribution channels may vary. Ensure compatibility with existing system voltage levels and interface requirements before procurement.

UARTs (Universal Asynchronous Receiver Transmitter) Selection Notes

Select this component when a dual-channel serial interface with moderate FIFO depth is required. Verify that the 44-pin PLCC package fits the PCB layout constraints. Ensure the host processor supports the necessary address decoding and interrupt handling for the Intel-compatible bus interface.

UARTs (Universal Asynchronous Receiver Transmitter) Part Context

This part belongs to the ST16C2550 series of DUARTs. It serves as an enhanced version of legacy UARTs like the PC16550, offering integrated FIFOs and higher operating speeds. It is pin-to-pin compatible with other Exar/MaxLinear parts such as the ST16C2450 and XR16L2550.

UARTs (Universal Asynchronous Receiver Transmitter) Replacement Considerations

Pin-to-pin compatible replacements include the ST16C2450 and XR16L2550. For designs requiring different packages, the ST16C2550CQ48 (48-TQFP) is available.