ST16C554CQ64-F

UARTs (Universal Asynchronous Receiver Transmitter) Overview

The ST16C554CQ64-F is a quad universal asynchronous receiver/transmitter (UART) manufactured by MaxLinear, Inc. It operates within a supply voltage range of 2.97 V to 5.5 V and supports data rates up to 1.5 Mbps. The device integrates 16-byte transmit and receive FIFOs for each channel. It features an internal oscillator, automatic flow control, modem control signals, and false start bit detection. The component is housed in a 64-LQFP package with dimensions of 10x10 mm and is rated for commercial operating temperatures from 0°C to +70°C.

UARTs (Universal Asynchronous Receiver Transmitter) Feature Summary

• Quad UART architecture with independent 16-byte FIFO buffers per channel
• Supports Intel and Motorola bus interfaces for flexible system integration
• Includes automatic hardware flow control and modem control signal management

UARTs (Universal Asynchronous Receiver Transmitter) Applications

• Industrial communication systems requiring multi-channel serial connectivity
• Embedded controllers utilizing Intel or Motorola bus protocols
• Data acquisition modules needing buffered serial transmission

UARTs (Universal Asynchronous Receiver Transmitter) Procurement Notes

Verify the specific suffix 'C' indicates the commercial temperature grade (0°C to +70°C), distinct from the industrial grade 'I'. Confirm the package type is LQFP-64. Check current availability status as distribution channels may vary. Ensure compatibility with 3.3V and 5V logic levels before procurement.

UARTs (Universal Asynchronous Receiver Transmitter) Selection Notes

Select this model when four independent UART channels are required with moderate buffering needs. Compare against the XR16V554 series if lower voltage operation (2.25V-3.6V) or higher speed (4 Mbps) is necessary. Choose the 'I' suffix variant if the application environment requires extended temperature ranges below 0°C.

UARTs (Universal Asynchronous Receiver Transmitter) Part Context

This component belongs to the ST16C554D series of VLIO UARTs. It shares functional similarities with other members like the ST16C554DIQ64-F but differs in temperature rating and packaging. The series is designed for general-purpose serial communication interfacing in embedded applications.

UARTs (Universal Asynchronous Receiver Transmitter) Replacement Considerations

The ST16C554DIQ64-F serves as a direct pin-compatible alternative offering an extended industrial temperature range (-40°C to +85°C). Verify that the thermal requirements of the target application align with the commercial grade of the ST16C554CQ64-F before substitution.