TL16C554AFNG4

UARTs (Universal Asynchronous Receiver Transmitter) Overview

The TL16C554AFNG4 is a quad asynchronous communication element manufactured by Texas Instruments. It integrates four independent UART channels within an 80-pin PLCC package, providing robust serial data handling for embedded systems. Each channel features a 16-byte FIFO buffer to minimize CPU intervention during high-speed data transfers. The device supports data rates up to 1 Mbps and operates on a single power supply ranging from 3V to 5.25V. Key functional attributes include automatic flow control, modem control signals, and false start bit detection capabilities.

UARTs (Universal Asynchronous Receiver Transmitter) Feature Summary

• Integrates four independent UART channels with dedicated 16-byte FIFOs for efficient data buffering
• Supports automatic hardware flow control and standard modem control signal interfacing
• Includes logic for detecting false start bits to ensure data integrity in noisy environments

UARTs (Universal Asynchronous Receiver Transmitter) Applications

• Industrial automation controllers requiring multiple serial ports
• Embedded communication gateways and protocol converters
• Point-of-sale terminals and barcode scanner interfaces

UARTs (Universal Asynchronous Receiver Transmitter) Procurement Notes

Verify the specific suffix 'G4' indicates lead-free compliance and RoHS status when sourcing. Confirm the package type matches the design requirements, as this component is available in various form factors including LQFP and PLCC. Cross-reference the manufacturer datasheet for the latest environmental declarations and moisture sensitivity levels before finalizing procurement orders.

UARTs (Universal Asynchronous Receiver Transmitter) Selection Notes

Select this component when a design requires four distinct serial interfaces in a compact footprint. Ensure the system voltage aligns with the 3V to 5.25V operating range. Consider the 80-pin PLCC package constraints if replacing older through-hole designs, or opt for alternative packages like LQFP if surface area is limited. Verify that the 1 Mbps maximum baud rate meets the application's throughput needs.

UARTs (Universal Asynchronous Receiver Transmitter) Part Context

This part belongs to the TL16C554A family of asynchronous communication elements. It serves as a CMOS upgrade to legacy TTL-based UARTs, offering lower power consumption and higher integration. The family includes variants with different pin counts and package styles, such as the dual-channel TL16C552A and the single-channel TL16C550, allowing designers to scale serial interface density based on project requirements.

UARTs (Universal Asynchronous Receiver Transmitter) Replacement Considerations

The TL16C554AFN is a parameter-equivalent non-lead-free variant. Designers must verify pin compatibility and electrical specifications when substituting between leaded and lead-free versions. Other family members like the TL16C552A offer fewer channels but may fit smaller footprints.