TL16C2552FNR

UARTs (Universal Asynchronous Receiver Transmitter) Overview

The TL16C2552FNR is a dual universal asynchronous receiver-transmitter (UART) manufactured by Texas Instruments. It operates within a supply voltage range of 1.8 V to 5.5 V and supports data rates up to 1.5 MB/s. The device integrates two independent UART channels, each equipped with a 16-byte transmit and receive FIFO buffer. It utilizes an 8-bit external data bus and a 3-bit address bus for interfacing. The component is housed in a 44-pin PLCC package and is designed for operation across temperature ranges including commercial (0°C to 70°C) and industrial (-40°C to 85°C) grades.

UARTs (Universal Asynchronous Receiver Transmitter) Feature Summary

• Dual-channel architecture providing independent serial communication paths
• Integrated 16-byte FIFOs for both transmit and receive operations to enhance throughput
• Wide supply voltage compatibility supporting 1.8V, 2.5V, 3.3V, and 5V systems
• Asynchronous bit-level communication protocol support

UARTs (Universal Asynchronous Receiver Transmitter) Applications

• Serial port expansion for embedded processors and microcontrollers
• Industrial control systems requiring robust asynchronous communication
• Data acquisition systems utilizing DSP or CPU interfaces

UARTs (Universal Asynchronous Receiver Transmitter) Procurement Notes

Verify the specific suffix variant against the required operating temperature range, as the base model designation may correspond to different thermal grades. Confirm RoHS compliance status and lead-free certification details directly from the manufacturer's current documentation before finalizing procurement specifications.

UARTs (Universal Asynchronous Receiver Transmitter) Selection Notes

Select this component when a dual UART interface with moderate data rates is required for 1.8V to 5V logic systems. Ensure the application environment matches the specified temperature grade, either commercial or industrial. Verify that the 44-PLCC package footprint aligns with the target PCB layout constraints and that the 8-bit parallel interface timing meets system requirements.

UARTs (Universal Asynchronous Receiver Transmitter) Part Context

This part belongs to the TL16C255x family of UARTs, which are widely used for adding serial communication capabilities to digital systems. It serves as a direct replacement for older NS16C2552 designs while offering improved voltage flexibility and integrated buffering compared to standard 16550-compatible devices.

UARTs (Universal Asynchronous Receiver Transmitter) Replacement Considerations

The TL16C2552IFNR is a verified alternative within the same family, typically distinguished by its extended industrial temperature rating. Other compatible variants include the G4 suffix versions indicating lead-free manufacturing updates.