ST16C2552CJ44TR-F

UARTs (Universal Asynchronous Receiver Transmitter) Overview

The ST16C2552CJ44TR-F is a dual universal asynchronous receiver and transmitter (UART) manufactured by MaxLinear. It features two independent UART channels with 16-byte transmit and receive FIFOs to reduce CPU bandwidth requirements. 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 surface-mount package and includes a full modem control interface, programmable baud rate generators, and internal loop-back capabilities for diagnostics.

UARTs (Universal Asynchronous Receiver Transmitter) Feature Summary

• Dual UART channels with 16-byte FIFOs for reduced CPU load
• Full modem control interface supporting standard handshake signals
• Programmable baud rate generators with crystal or external clock input options
• Internal loop-back capability for onboard diagnostic testing

UARTs (Universal Asynchronous Receiver Transmitter) Applications

• Industrial communication systems requiring reliable serial data transfer
• Embedded systems needing multiple asynchronous serial ports
• Modem control interfaces in telecommunications equipment
• Data acquisition systems utilizing DMA operation

UARTs (Universal Asynchronous Receiver Transmitter) Procurement Notes

Verify the specific suffix TR-F indicates tape-and-reel packaging when sourcing. Confirm the manufacturer designation as MaxLinear, noting historical lineage from Exar Corporation. Ensure the component meets RoHS compliance standards required for your assembly process. Cross-reference the datasheet revision to confirm feature availability such as 5-volt tolerant inputs.

UARTs (Universal Asynchronous Receiver Transmitter) Selection Notes

Select this component when dual independent UART channels are required with moderate FIFO depth. It serves as a pin-compatible replacement for National Semiconductor PC16552 devices. Consider the 44-pin PLCC package constraints for PCB layout. Verify that the 4 Mbps maximum data rate aligns with system timing requirements.

UARTs (Universal Asynchronous Receiver Transmitter) Part Context

This part belongs to the ST16C2552 series of dual UARTs. It is functionally compatible with legacy PC16552 designs while offering enhanced FIFO performance. The device integrates standard 16C550 register compatibility alongside advanced modem control features. It represents a bridge between legacy serial interfaces and modern embedded processing needs.

UARTs (Universal Asynchronous Receiver Transmitter) Replacement Considerations

The ST16C2552 is pin-to-pin compatible with the National Semiconductor PC16552. It also shares functional compatibility with Exar XR16L2752 and XR16C2852 devices. Designers migrating from these legacy parts should verify register configuration settings remain consistent across the transition.