TL16C452FN

UARTs (Universal Asynchronous Receiver Transmitter) Overview

The TL16C452FN 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 kb/s per channel and functions within a supply voltage range of 4.75 V to 5.25 V. It 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 installation.

UARTs (Universal Asynchronous Receiver Transmitter) Feature Summary

• Dual UART architecture providing two independent asynchronous communication channels
• Integrated parallel port functionality for direct peripheral interfacing
• Standard UART control registers compatible with legacy system designs

UARTs (Universal Asynchronous Receiver Transmitter) Applications

• Industrial control systems requiring multiple serial communication links
• Embedded computer systems needing parallel I/O expansion
• Legacy hardware maintenance and replacement scenarios

UARTs (Universal Asynchronous Receiver Transmitter) Procurement Notes

Verify the specific ordering suffix to confirm package type and temperature grade. Confirm RoHS compliance status if required by current manufacturing standards. Check for end-of-life notifications or discontinuance notices from the manufacturer before finalizing procurement plans.

UARTs (Universal Asynchronous Receiver Transmitter) Selection Notes

Select this component when dual UART connectivity combined with parallel port access is required in a single package. Ensure the design accommodates the 68-PLCC footprint and 5V logic levels. Verify that the absence of FIFO buffers meets the timing requirements of the target application.

UARTs (Universal Asynchronous Receiver Transmitter) Part Context

This part belongs to the TL16C45x family of asynchronous communication elements. It serves as a functional equivalent to earlier industry-standard UARTs while adding parallel port capabilities. The device is often used in systems requiring robust serial and parallel interface integration.

UARTs (Universal Asynchronous Receiver Transmitter) Replacement Considerations

The TL16C452FNRG4 is a verified lead-free variant of this component. Other members of the TL16C45x family may offer similar functionality but differ in channel count or package options.