PI3USB221AZWEX

Analog Switches - Special Purpose Overview

The PI3USB221AZWEX is a high-bandwidth USB switch IC designed for multiplexing high-speed USB 2.0 signals in mobile and consumer electronics. It operates at VDD supply voltages of 2.5 V and 3.3 V, with I/O pins accepting signals up to 5.5 V. The device features a maximum on-resistance (rON) of 6Ω, typical bandwidth of 1.6 GHz, and low power consumption of 50 µA maximum. It includes over-voltage protection for D+/D- pins and offers ESD performance of 12 kV HBM on I/O pins. Packaged in a 10-pin UDFN (ZW) format.

Analog Switches - Special Purpose Feature Summary

• Supports routing of USB 1.0, 1.1, and 2.0 signals as well as MIPI signal routing.
• Provides bidirectional switching with minimal attenuation and low bit-to-bit skew.
• Includes over-voltage protection allowing signal transmission even when D+/D- pins are shorted to VBus.
• Features low-power mode with 2 µA current draw when output enable is disabled.

Analog Switches - Special Purpose Applications

• Cell phones
• Digital cameras
• Notebooks with hubs or controllers with limited USB I/Os

Analog Switches - Special Purpose Procurement Notes

Verify the package code ZW corresponds to the 10-pin UDFN configuration. Confirm RoHS compliance and lead-free status through official manufacturer documentation. Ensure control inputs are held at VDD or GND to prevent undefined states during operation.

Analog Switches - Special Purpose Selection Notes

Select this component for applications requiring high bandwidth and low insertion loss for USB 2.0 High-Speed data paths. Consider the 1.6 GHz bandwidth and 6Ω rON for signal integrity requirements. Verify voltage compatibility with the system's 2.5 V or 3.3 V logic levels.

Analog Switches - Special Purpose Part Context

The PI3USB221AZWEX belongs to the PI3USB221A family of high-speed USB switches. It is specifically the version packaged in a 10-pin UDFN (ZW) footprint. Other variants in the family include the ZUA package option.

Analog Switches - Special Purpose Replacement Considerations

The PI3USB221AZUAEX is a direct pin-compatible alternative using the ZUA package. Cross-referencing with other Diodes Incorporated USB switches may require verification of pinout and electrical specifications.

Analog Switches - Special Purpose FAQ

What is the maximum operating voltage for the I/O pins?

The VI/O range supports signals up to 5.5 V.

How does the device handle over-voltage conditions on data lines?

It provides over-voltage protection where a less than 3.8 V (typical) signal transmits through the outputs even if D+/D- pins are shorted to VBus.

What is the typical bandwidth of the switch?

The typical bandwidth is 1.6 GHz.