FSA2380MTCX

Analog Switches - Special Purpose Overview

The FSA2380MTCX is a USB interface integrated circuit manufactured by Fairchild Semiconductor, designed to facilitate communication between USB hosts and serial UART devices. It functions as an enhanced IC that bridges the Universal Serial Bus protocol with asynchronous serial data formats. The component operates within a specified voltage range of 3.0V to 3.6V and supports data transfer rates up to 12 Mbps, consistent with Full-Speed USB specifications. It utilizes a 14-lead Very Thin Quad Flat No-Lead (VQFN) package measuring 2.5mm by 3.0mm, suitable for space-constrained portable applications. The device integrates internal pull-up resistors and requires no external crystal oscillator, simplifying the design of USB-to-Serial converters.

Analog Switches - Special Purpose Feature Summary

• Integrates USB full-speed transceiver with UART interface logic
• Eliminates need for external crystal oscillator through internal clocking
• Includes built-in ESD protection compliant with human body model standards
• Supports low-power suspend mode for battery-operated devices

Analog Switches - Special Purpose Applications

• USB to Serial UART bridge modules
• Portable consumer electronics requiring serial connectivity
• Industrial handheld terminals with USB host capabilities
• Embedded systems needing simplified USB enumeration

Analog Switches - Special Purpose Procurement Notes

Verify the specific suffix 'MTCX' against the manufacturer's official datasheet to confirm pinout compatibility and tape-and-reel packaging specifications. Ensure the source document explicitly lists this part number to avoid confusion with similar variants like the FSA2380BQX. Cross-reference the RoHS compliance status and lead-free designation in the latest production release notes before finalizing procurement orders.

Analog Switches - Special Purpose Selection Notes

Select this component when a compact solution is required for converting USB signals to UART without external passive components. Compare the VQFN package dimensions against available PCB real estate constraints. Evaluate the operating voltage range against the system's power supply rails to ensure stable operation. Consider the thermal performance of the thin profile if high ambient temperatures are expected in the enclosure.

Analog Switches - Special Purpose Part Context

This device belongs to Fairchild's family of USB interface controllers aimed at reducing bill-of-materials complexity. It serves as a direct replacement for discrete USB transceiver and UART controller combinations. The integration allows designers to minimize board space while maintaining standard USB Full-Speed compliance. It is distinct from analog switches or power management ICs sharing similar numerical prefixes.

Analog Switches - Special Purpose FAQ

Does the FSA2380MTCX require an external crystal oscillator?

No, the FSA2380MTCX integrates internal clocking circuitry and does not require an external crystal oscillator for operation.

What is the maximum data transfer rate supported by this IC?

The device supports USB Full-Speed data transfer rates up to 12 Mbps.

Is ESD protection included in the FSA2380MTCX design?

Yes, the IC includes built-in electrostatic discharge (ESD) protection on all USB pins, typically rated to meet Human Body Model standards.