ST16C654IQ64-F

UARTs (Universal Asynchronous Receiver Transmitter) Overview

The ST16C654IQ64-F is a quad universal asynchronous receiver/transmitter (UART) interface integrated circuit manufactured by MaxLinear. It features 64-byte transmit and receive FIFOs for each channel, supporting data rates up to 1.5 Mb/s. The device operates within a supply voltage range of 2.97 V to 5.5 V, compatible with both 3.3 V and 5 V logic systems. It supports Intel and Motorola bus protocols and is housed in a 64-lead LQFP package. The component is rated for an industrial temperature range from -45°C to +85°C.

UARTs (Universal Asynchronous Receiver Transmitter) Feature Summary

• Quad UART architecture with dedicated 64-byte FIFO buffers per channel
• Support for Intel and Motorola bus protocol compatibility
• Wide operating voltage range accommodating 3.3 V and 5 V systems

UARTs (Universal Asynchronous Receiver Transmitter) Applications

• Industrial communication gateways requiring multiple serial interfaces
• Embedded systems utilizing Intel or Motorola bus architectures
• Data acquisition modules needing buffered serial transmission

UARTs (Universal Asynchronous Receiver Transmitter) Procurement Notes

Verify the specific suffix IQ64 to confirm the LQFP-64 package and industrial temperature rating (-45°C to +85°C). Confirm RoHS compliance status through official documentation as requirements may vary by production batch. Check current lifecycle status as this part may be subject to discontinuation notices.

UARTs (Universal Asynchronous Receiver Transmitter) Selection Notes

Select this component when four independent UART channels are required with substantial buffering to handle high-throughput serial data. Ensure the design environment supports the specified voltage range and that the LQFP-64 footprint fits the PCB layout constraints compared to alternative packages like PLCC or SOIC.

UARTs (Universal Asynchronous Receiver Transmitter) Part Context

This part belongs to the ST16C654 series of VLIO UARTs. It shares functional similarities with other variants such as the ST16C654DCQ64-F but differs in package type and temperature grade. The IQ64 designation specifically indicates the leaded quad flat package variant designed for broader industrial applications.

UARTs (Universal Asynchronous Receiver Transmitter) Replacement Considerations

Direct pin-compatible alternatives include the ST16C654DCQ64-F for commercial temperature ranges or XR16V654IL-F for lower voltage operations. Verify FIFO depth and bus protocol support when substituting with other quad UART devices.