PI3USB9281GEEX

Product Overview

• Category: USB Switch
• Use: The PI3USB9281GEEX is a high-speed USB 3.2 Gen 1 (5Gbps) switch designed for applications requiring multiple USB ports.
• Characteristics: This switch offers low insertion loss, high bandwidth, and excellent signal integrity. It supports both upstream and downstream connections, making it suitable for various USB-enabled devices.
• Package: The PI3USB9281GEEX comes in a compact package, allowing for easy integration into electronic designs.
• Essence: The essence of this product lies in its ability to provide reliable and efficient USB switching functionality.
• Packaging/Quantity: The PI3USB9281GEEX is typically sold in reels or trays, with a quantity of 2500 units per reel.

Specifications

• Switch Type: Single-Pole Double-Throw (SPDT)
• Operating Voltage: 3.3V
• Operating Temperature Range: -40°C to +85°C
• Bandwidth: Up to 5Gbps
• Insertion Loss: <0.5dB at 5GHz
• On-Resistance: <6Ω
• Off-Isolation: >20dB at 5GHz
• Package Type: 24-pin QFN

Detailed Pin Configuration

The PI3USB9281GEEX features a 24-pin QFN package with the following pin configuration:

1. VBUS
2. D-
3. D+
4. GND
5. SDA
6. SCL
7. EN
8. OE
9. SEL0
10. SEL1
11. SEL2
12. SEL3
13. NC
14. NC
15. NC
16. NC
17. NC
18. NC
19. NC
20. NC
21. NC
22. NC
23. NC
24. VCC

Functional Features

• Supports USB 3.2 Gen 1 (5Gbps) data rates
• Provides low insertion loss and high bandwidth for optimal signal integrity
• Allows for both upstream and downstream connections
• Supports hot-plugging and overcurrent protection
• Offers automatic switching between USB ports

Advantages and Disadvantages

Advantages: - High-speed data transfer capabilities - Compact package for easy integration - Reliable signal integrity - Hot-plug support for convenience - Overcurrent protection for device safety

Disadvantages: - Limited to USB 3.2 Gen 1 speeds (5Gbps) - Requires external control signals for switching

Working Principles

The PI3USB9281GEEX operates by selectively connecting the USB data lines (D+ and D-) of different ports. It utilizes internal switches controlled by external signals to establish the desired connection. When a specific port is selected, the switch connects its D+ and D- lines to the corresponding upstream or downstream lines, enabling data transfer.

Detailed Application Field Plans

The PI3USB9281GEEX finds applications in various scenarios, including:

1. Laptop docking stations
2. USB hubs
3. Multi-port USB adapters
4. USB-enabled peripherals
5. Industrial automation systems

Its ability to switch between multiple USB ports makes it suitable for devices that require flexible connectivity options.

Detailed and Complete Alternative Models

1. PI3USB9281BEEX: Similar to PI3USB9281GEEX but with extended temperature range (-40°C to +105°C).
2. PI3USB9281CEEX: Similar to PI3USB9281GEEX but with additional ESD protection features.
3. PI3USB9281DEEX: Similar to PI3USB9281GEEX but with a smaller package size (16-pin QFN).

These alternative models offer similar functionality with slight variations to cater to specific application requirements.

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