TL16C452FNRG4

UARTs (Universal Asynchronous Receiver Transmitter) Overview

The TL16C452FNRG4 is a dual universal asynchronous receiver/transmitter (UART) integrated circuit manufactured by Texas Instruments. It features two independent UART channels and an integrated parallel port, operating without FIFO buffers. The device supports data rates up to 256 kbps and functions within a supply voltage range of 4.75 V to 5.25 V. It draws a maximum supply current of 10 mA and operates reliably across a commercial temperature range of 0°C to 70°C. The component is housed in a 68-pin Plastic Leadless Chip Carrier (PLCC) package with J-leads, designed for surface-mount applications.

UARTs (Universal Asynchronous Receiver Transmitter) Feature Summary

• Dual independent UART channels providing flexible serial communication capabilities
• Integrated parallel port functionality for direct peripheral interfacing
• Standard register compatibility with legacy UART architectures

UARTs (Universal Asynchronous Receiver Transmitter) Applications

• Industrial control systems requiring multiple serial interfaces
• Embedded computer systems with legacy I/O requirements
• Communication gateways utilizing parallel port expansion

UARTs (Universal Asynchronous Receiver Transmitter) Procurement Notes

Verify the G4 suffix indicates RoHS compliance and lead-free construction as per Texas Instruments standards. Confirm the PLCC-68 package dimensions match the target PCB footprint. Ensure the commercial temperature rating aligns with the operational environment. Validate that the absence of FIFO buffers meets the system's throughput requirements.

UARTs (Universal Asynchronous Receiver Transmitter) Selection Notes

Select this component when dual UART connectivity and parallel port access are required in a single package. Compare against the TL16C451FN if only a single UART channel is needed. Consider the TL16C752 series if hardware flow control via FIFO buffers is necessary for higher data integrity. Verify pinout compatibility during board redesign.

UARTs (Universal Asynchronous Receiver Transmitter) Part Context

This part belongs to the Texas Instruments TL16C45x family of Asynchronous Communication Elements. It serves as a multi-channel interface solution bridging microprocessors and serial/parallel peripherals. The FNR variant denotes the tape-and-reel packaging format, while the G4 suffix specifies environmental compliance modifications.

UARTs (Universal Asynchronous Receiver Transmitter) Replacement Considerations

The TL16C452FNR is the non-RoHS equivalent. For single-channel needs, the TL16C451FN is a related option. Systems requiring FIFO buffers should evaluate the TL16C752 series instead.