ST16C554DIQ64-F

UARTs (Universal Asynchronous Receiver Transmitter) Overview

The ST16C554DIQ64-F is a quad Universal Asynchronous Receiver and Transmitter (UART) manufactured by MaxLinear. It integrates 16 bytes of transmit and receive FIFOs per channel, supporting data rates up to 1.5 Mbps. The device operates within a supply voltage range of 2.97 V to 5.5 V and functions at temperatures from -40°C to +85°C. Packaged in a 64-pin LQFP, it features selectable receive FIFO trigger levels, internal loopback for diagnostics, and compatibility with Intel and Motorola bus protocols.

UARTs (Universal Asynchronous Receiver Transmitter) Feature Summary

• Quad UART architecture with independent 16-byte transmit and receive FIFOs for each channel
• Supports high-speed asynchronous serial communication with data rates up to 1.5 Mbps
• Includes internal loopback capability for onboard diagnostic testing
• Compatible with standard Intel and Motorola bus interfaces

UARTs (Universal Asynchronous Receiver Transmitter) Applications

• Industrial control systems requiring multiple serial communication ports
• Embedded computing platforms utilizing Intel or Motorola bus architectures
• Telecommunications equipment needing reliable asynchronous data transfer
• Automotive electronics operating in extended temperature environments

UARTs (Universal Asynchronous Receiver Transmitter) Procurement Notes

Verify the specific suffix 'DIQ64' confirms the industrial temperature range (-40°C to +85°C) and LQFP-64 package type against the official MaxLinear datasheet. Ensure the component source is authorized to guarantee authenticity, as counterfeit interface ICs may exhibit timing deviations or voltage tolerance issues that compromise system reliability.

UARTs (Universal Asynchronous Receiver Transmitter) Selection Notes

Select this component when four independent UART channels are required with moderate buffering capabilities. It is suitable for designs needing wide voltage flexibility between 3.3V and 5V logic levels. Consider alternative models if higher data rates exceeding 1.5 Mbps or larger FIFO depths are necessary for high-throughput applications.

UARTs (Universal Asynchronous Receiver Transmitter) Part Context

This part belongs to the ST16C554D series of quad UARTs from MaxLinear. It serves as a bridge between parallel microprocessor buses and serial asynchronous lines. The device is designed to replace legacy UART components while offering improved performance through integrated FIFOs and broader voltage compatibility.

UARTs (Universal Asynchronous Receiver Transmitter) Replacement Considerations

The ST16C554DCQ64-F is a verified pin-compatible substitute within the same family, differing primarily in the commercial temperature range (0°C to 70°C). Verify thermal requirements before substitution.