FSA644BUCX

Specialized Overview

The FSA644BUCX is a single 2:1 multiplexer switch integrated circuit manufactured by ON Semiconductor, formerly Fairchild Semiconductor. It features a MIPI D-PHY compatible structure designed for high-speed data transmission at rates up to 1.5Gbps. The device utilizes a WLCSP (Wafer Level Chip Scale Package) with 36 pins and measures 2.36 x 2.36 x 0.292mm. It operates within a temperature range of -40°C to +85°C and supports surface mount installation.

Specialized Feature Summary

• Supports MIPI D-PHY standard for high-speed serial data switching
• Compact WLCSP package design for space-constrained mobile applications
• Low insertion loss characteristics suitable for video data lanes

Specialized Applications

• Mobile phone camera module signal routing
• MIPI interface data lane switching in portable devices
• High-speed video signal multiplexing in consumer electronics

Specialized Procurement Notes

Verify the manufacturer designation as ON Semiconductor due to the acquisition of Fairchild Semiconductor. Confirm the specific suffix UCX corresponds to the WLCSP packaging and pin configuration. Ensure compliance with RoHS standards and check for any updated ordering information on the official manufacturer website.

Specialized Selection Notes

Select this component for applications requiring low-profile switching of MIPI D-PHY signals. The WLCSP package is ideal for modern mobile devices with strict height restrictions. Verify that the 1.5Gbps data rate meets the system requirements for the specific video or data application.

Specialized Part Context

This part belongs to the FSA644 series of MIPI switches originally developed by Fairchild Semiconductor. Following the merger, these products are managed under ON Semiconductor's portfolio. The FSA644BUCX specifically addresses the need for compact, high-performance switching solutions in mobile photography and display interfaces.

Specialized Replacement Considerations

Check for direct equivalents such as the FSA644UCX from ON Semiconductor. Verify pin compatibility and electrical specifications before substitution. Consider alternative MIPI switches from other manufacturers if supply constraints exist.