TL16C552AFNG4

UARTs (Universal Asynchronous Receiver Transmitter) Overview

The TL16C552AFNG4 is a dual Universal Asynchronous Receiver/Transmitter (UART) integrated circuit manufactured by Texas Instruments. It operates within a supply voltage range of 3.0 V to 5.5 V and supports data transfer rates up to 1.5 Mbps. The device features two independent UART channels, each equipped with a 16-byte FIFO buffer for both transmit and receive operations. It utilizes an 8-bit external data bus and a 3-bit address bus for interfacing. The component is housed in a 44-pin TSSOP package and is rated for operation across an industrial temperature range of -40°C to +85°C.

UARTs (Universal Asynchronous Receiver Transmitter) Feature Summary

• Dual-channel architecture providing independent asynchronous serial communication paths
• Integrated 16-byte FIFO buffers on both transmit and receive sides to enhance throughput
• Supports standard baud rate generators compatible with common clock frequencies
• Includes full modem control handshaking signals for flow management

UARTs (Universal Asynchronous Receiver Transmitter) Applications

• Industrial automation systems requiring reliable serial data exchange
• Embedded computing platforms needing multiple UART interfaces
• Telecommunications equipment utilizing asynchronous protocols
• Point-of-sale terminals and barcode scanners

UARTs (Universal Asynchronous Receiver Transmitter) Procurement Notes

Verify the specific suffix 'FNG4' against the manufacturer's official datasheet to confirm the package type and lead-free status. Ensure the operating environment remains within the specified -40°C to +85°C range. Cross-reference the pinout diagram with the target PCB layout to prevent interface mismatches during integration.

UARTs (Universal Asynchronous Receiver Transmitter) Selection Notes

Select this component when dual UART channels are required in a compact surface-mount package. Compare the 16-byte FIFO depth against simpler 1-byte FIFO alternatives if high-throughput applications are anticipated. Confirm that the 3.0 V to 5.5 V supply range aligns with the system power rails before finalizing the design.

UARTs (Universal Asynchronous Receiver Transmitter) Part Context

This part belongs to the TL16C552A family of UART controllers, which are industry-standard replacements for older 16C550 designs. The family is widely used in embedded systems where robust asynchronous communication is essential. The 'FNG4' designation specifically indicates the TSSOP-44 package configuration and compliance with RoHS directives.

UARTs (Universal Asynchronous Receiver Transmitter) Replacement Considerations

The TL16C552AIN is a direct functional equivalent with a different package. The ST16C552 from STMicroelectronics offers pin-compatible alternatives. Verify register compatibility when substituting with generic 16C552 clones to ensure software portability.