TL16C552FNRG4

UARTs (Universal Asynchronous Receiver Transmitter) Overview

The TL16C552FNRG4 is a dual-channel Universal Asynchronous Receiver/Transmitter (UART) manufactured by Texas Instruments. It features two independent UART channels, each equipped with 16-byte transmit and receive FIFOs to enhance data throughput and reduce CPU overhead. The device supports baud rates up to 1 MBd and operates on a single 5V supply voltage ranging from 4.75V to 5.25V. Housed in a 68-pin PLCC package measuring 24.23mm x 24.23mm x 4.06mm, it functions within an industrial temperature range of -40°C to +85°C.

UARTs (Universal Asynchronous Receiver Transmitter) Feature Summary

• Dual independent UART channels with integrated 16-byte FIFOs for efficient data buffering
• Supports high-speed asynchronous communication with maximum data rates of 1 MBd
• Includes hardware modem control signals and false start bit detection capabilities

UARTs (Universal Asynchronous Receiver Transmitter) Applications

• Industrial serial communication systems requiring multiple UART interfaces
• Embedded controllers managing printer ports or legacy serial devices
• Data acquisition systems utilizing asynchronous protocols

UARTs (Universal Asynchronous Receiver Transmitter) Procurement Notes

Verify the complete part number including the 'RG4' suffix to confirm lead-free compliance and RoHS status. Confirm the specific package variant matches the 68-PLCC requirement. Ensure the operating voltage aligns with the 4.75V to 5.25V specification. Check for moisture sensitivity level requirements during storage and handling. Validate that the industrial temperature range meets the application's environmental constraints.

UARTs (Universal Asynchronous Receiver Transmitter) Selection Notes

Select this component when a dual-channel UART solution is required with moderate FIFO depth. Compare against single-channel variants if only one interface is needed. Consider the PLCC package constraints for PCB layout compared to QFP options. Verify compatibility with system clock frequencies supporting the desired baud rate generation.

UARTs (Universal Asynchronous Receiver Transmitter) Part Context

This component belongs to the TL16C55x family of UARTs, which are designed as drop-in replacements for standard 16550-compatible devices but offer enhanced performance through larger FIFOs. The TL16C552 specifically provides two channels, distinguishing it from the single-channel TL16C550 and the four-channel TL16C554.

UARTs (Universal Asynchronous Receiver Transmitter) Replacement Considerations

The TL16C552AIFN is a compatible alternative within the same family offering identical dual-channel functionality and pinout.