ST16C654CQ100TR-F

UARTs (Universal Asynchronous Receiver Transmitter) Overview

The ST16C654CQ100TR-F is a quad Universal Asynchronous Receiver and Transmitter (UART) manufactured by MaxLinear. It features 64-byte transmit and receive FIFOs, supporting data rates up to 1.5 Mbps with a 24 MHz clock. The device operates within a supply voltage range of 2.97 V to 5.5 V and includes automatic hardware/software flow control. It is housed in a 100-pin QFP package.

UARTs (Universal Asynchronous Receiver Transmitter) Feature Summary

• Integrated 64-byte FIFOs for both transmit and receive paths
• Automatic hardware and software flow control capabilities
• Internal loopback functionality for onboard diagnostics

UARTs (Universal Asynchronous Receiver Transmitter) Applications

• Industrial communication systems requiring high throughput
• Embedded controllers needing multiple serial interfaces
• Modem interface applications

UARTs (Universal Asynchronous Receiver Transmitter) Procurement Notes

Verify the specific manufacturer designation on the component marking, as Exar Corporation was the original developer before acquisition. Confirm the 100-pin QFP package type matches the design footprint. Ensure the operating temperature range requirements align with the commercial or industrial grade specifications available for this part number.

UARTs (Universal Asynchronous Receiver Transmitter) Selection Notes

Select this component when four independent UART channels are required with deep buffering to handle burst data traffic. Compare against the ST16C554 if smaller 16-byte FIFOs are sufficient for the application. Verify that the 100-pin QFP package size fits the PCB layout constraints compared to alternative pin counts.

UARTs (Universal Asynchronous Receiver Transmitter) Part Context

This part belongs to the ST16C654 family of enhanced quad UARTs. It serves as an upgrade to the ST16C554 series by providing larger 64-byte FIFOs instead of 16-byte buffers. The device maintains compatibility with industry-standard register maps while offering improved performance through increased buffer depth and flexible flow control options.

UARTs (Universal Asynchronous Receiver Transmitter) Replacement Considerations

The ST16C554CQ100-F is a compatible alternative from the same lineage but utilizes 16-byte FIFOs. Other quad UARTs may require level shifting or logic adaptation due to differing register configurations.