NS16C2552TVA/NOPB

Overview

The NS16C2552TVA/NOPB is a dual universal asynchronous receiver/transmitter (UART) interface integrated circuit manufactured by Texas Instruments. It operates within a supply voltage range of 1.8 V to 5.5 V and supports data transfer rates up to 1.5 Mbps. The device integrates two independent UART channels, each equipped with a 16-byte transmit and receive FIFO buffer to enhance throughput and reduce CPU overhead. It functions reliably across an industrial temperature range from -40°C to +85°C. The component is housed in a 48-pin Thin Quad Flatpack (TQFP) package suitable for surface-mount assembly.

Feature Summary

• Dual-channel architecture providing independent serial communication paths
• Integrated 16-byte FIFO buffers for both transmission and reception
• Wide supply voltage compatibility supporting 1.8 V, 2.5 V, 3.3 V, and 5 V systems
• Industrial-grade operational capability across extended temperature ranges

Applications

• Industrial automation control systems requiring robust serial communication
• Embedded computing platforms utilizing multiple asynchronous interfaces
• Telecommunications equipment needing high-speed data transfer capabilities
• Point-of-sale terminals and payment processing hardware

Procurement Notes

Verify the specific suffix 'TVA' against official Texas Instruments documentation to confirm pinout and electrical characteristics, as variations exist within the NS16C2552 family. Ensure the NOPB designation confirms lead-free and RoHS compliance status prior to integration into final assemblies.

Selection Notes

Select this component when dual independent UART channels are required within a single footprint. The 16-byte FIFO depth is critical for applications experiencing burst data traffic or variable processor latency. Confirm that the TQFP-48 package dimensions align with the target PCB layout constraints and thermal management requirements.

Part Context

This part belongs to the NS16C2552 series of dual UARTs. It serves as a modern replacement for legacy 16550-compatible devices while offering enhanced FIFO depths and lower power consumption. The device maintains software compatibility with standard UART registers while providing improved performance metrics for embedded applications.

Replacement Considerations

Direct replacements include the TL16C2552FNR for PLCC packages and other NS16C2552 variants with compatible pinouts. Verify package type differences between TQFP and PLCC options before substitution.