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PI3USB221EZUAEX
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PI3USB221EZUAEX

Product Overview

  • Category: USB Switch
  • Use: The PI3USB221EZUAEX is a high-speed USB 2.0 switch designed for applications requiring multiplexing between two USB sources.
  • Characteristics: This switch offers low on-resistance and low crosstalk, making it suitable for various USB switching applications. It supports data rates up to 480 Mbps and provides excellent signal integrity.
  • Package: The PI3USB221EZUAEX comes in a small 10-pin UQFN package, which allows for space-saving integration into compact electronic devices.
  • Essence: The essence of this product lies in its ability to enable seamless switching between two USB sources while maintaining high-speed data transmission.
  • Packaging/Quantity: The PI3USB221EZUAEX is typically packaged in reels, with 3000 units per reel.

Specifications

  • Supply Voltage: 1.65V to 5.5V
  • On-Resistance (RON): 4Ω (typical)
  • Crosstalk: -40dB (typical)
  • Data Rate: Up to 480 Mbps
  • Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The PI3USB221EZUAEX has the following pin configuration:

  1. VCC
  2. GND
  3. S1
  4. S2
  5. D-
  6. D+
  7. SEL
  8. OE#
  9. NC
  10. VBUS

Functional Features

  • High-Speed USB 2.0 Switching: Enables seamless switching between two USB sources without compromising data transfer speeds.
  • Low On-Resistance: Provides minimal signal loss during switching operations.
  • Low Crosstalk: Ensures reliable data transmission by minimizing interference between channels.
  • ESD Protection: Incorporates built-in electrostatic discharge protection to safeguard against damage from static electricity.

Advantages and Disadvantages

Advantages: - High-speed data transmission - Low signal loss during switching - Compact package for space-saving integration - Excellent signal integrity - ESD protection for enhanced reliability

Disadvantages: - Limited to USB 2.0 applications - Not suitable for high-power USB devices

Working Principles

The PI3USB221EZUAEX operates by selectively connecting either of the two USB sources to the output channel based on the control input. When S1 is selected, the D+ and D- lines are connected to the corresponding pins of the output channel. Similarly, when S2 is selected, the other USB source is connected to the output channel. The switch is controlled by the SEL pin, which determines the active USB source.

Detailed Application Field Plans

The PI3USB221EZUAEX finds applications in various scenarios where multiplexing between two USB sources is required. Some potential application fields include:

  1. Portable Electronic Devices: Enables seamless switching between different USB peripherals (e.g., charging ports, data transfer ports) in smartphones, tablets, and laptops.
  2. Docking Stations: Facilitates switching between multiple USB devices connected to a docking station, such as external hard drives, keyboards, and mice.
  3. Automotive Infotainment Systems: Allows for switching between different USB inputs in car multimedia systems, enabling connectivity with various devices like smartphones, USB drives, and media players.

Detailed and Complete Alternative Models

  1. PI3USB222EZUAEX: Similar to PI3USB221EZUAEX but with an additional USB channel for multiplexing between three USB sources.
  2. PI3USB23XZHEX: USB 3.0 switch with higher data rates and backward compatibility with USB 2.0.

These alternative models offer similar functionality to the PI3USB221EZUAEX but cater to different requirements and specifications.

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Lista 10 Vanliga frågor och svar relaterade till tillämpningen av PI3USB221EZUAEX i tekniska lösningar

Sure! Here are 10 common questions and answers related to the application of PI3USB221EZUAEX in technical solutions:

  1. Q: What is PI3USB221EZUAEX? A: PI3USB221EZUAEX is a USB switch IC (Integrated Circuit) that allows multiple USB devices to be connected to a single host device.

  2. Q: What are the key features of PI3USB221EZUAEX? A: Some key features of PI3USB221EZUAEX include low power consumption, high-speed data transfer, ESD protection, and compatibility with various USB standards.

  3. Q: How does PI3USB221EZUAEX work? A: PI3USB221EZUAEX works by selectively connecting or disconnecting USB devices from the host device using its internal switching mechanism.

  4. Q: What are the typical applications of PI3USB221EZUAEX? A: PI3USB221EZUAEX is commonly used in applications such as docking stations, USB hubs, USB peripherals, and mobile devices.

  5. Q: Can PI3USB221EZUAEX support USB 3.0 or higher speeds? A: Yes, PI3USB221EZUAEX supports USB 3.0 and can handle high-speed data transfer rates up to 5 Gbps.

  6. Q: Does PI3USB221EZUAEX require external power? A: No, PI3USB221EZUAEX is designed to operate using the power provided by the USB bus.

  7. Q: Is PI3USB221EZUAEX compatible with different operating systems? A: Yes, PI3USB221EZUAEX is compatible with various operating systems, including Windows, macOS, Linux, and Android.

  8. Q: Can PI3USB221EZUAEX handle hot-plugging of USB devices? A: Yes, PI3USB221EZUAEX supports hot-plugging, allowing USB devices to be connected or disconnected while the system is powered on.

  9. Q: Does PI3USB221EZUAEX provide any protection against electrostatic discharge (ESD)? A: Yes, PI3USB221EZUAEX offers built-in ESD protection to safeguard connected devices from potential damage caused by static electricity.

  10. Q: Are there any design considerations when using PI3USB221EZUAEX in a circuit? A: Some design considerations include proper PCB layout, ensuring sufficient power supply, and following the recommended operating conditions provided in the datasheet.

Please note that these answers are general and may vary depending on specific application requirements. It's always recommended to refer to the datasheet and consult with the manufacturer for detailed technical information.