The Microchip Technology USB2244-AEZG-06 is a highly integrated USB hub controller designed to provide a cost-effective solution for expanding USB connectivity in various applications. This device is particularly useful in consumer electronics, computer peripherals, and industrial applications where multiple USB devices need to be connected to a single USB host.

## Key Features

1. USB Hub Functionality: The USB2244 is a USB 2.0 compliant hub controller that supports up to four downstream ports. It allows multiple USB devices to connect to a single USB host, effectively expanding the number of available USB connections.

2. Data Rate: The device supports data rates of up to 480 Mbps (High-Speed), 12 Mbps (Full-Speed), and 1.5 Mbps (Low-Speed), making it versatile for various USB devices.

3. Power Management: The USB2244 includes advanced power management features, such as individual port power control and support for USB power-saving modes. This helps in reducing power consumption when devices are not in use.

4. Integrated Transceivers: The hub controller integrates USB transceivers, which simplifies the design and reduces the number of external components required.

5. Flexible Configuration: The USB2244 can be configured in various ways to meet specific application requirements. It supports both bus-powered and self-powered configurations.

6. Overcurrent Protection: Each downstream port is equipped with overcurrent protection, ensuring that the hub and connected devices are safeguarded against excessive current draw.

7. Operating Voltage: The device operates within a voltage range of 4.5V to 5.5V, making it compatible with standard USB power supplies.

8. Temperature Range: The USB2244 is rated for operation in a temperature range of -40°C to +85°C, making it suitable for industrial applications.

## Specifications

- Part Number: USB2244-AEZG-06
- Type: USB 2.0 Hub Controller
- Number of Downstream Ports: 4
- Data Rate:
- High-Speed: 480 Mbps
- Full-Speed: 12 Mbps
- Low-Speed: 1.5 Mbps
- Power Supply Voltage: 4.5V to 5.5V
- Power Consumption: Typically low, with power-saving features
- Operating Temperature: -40°C to +85°C
- Package Type: QFN (Quad Flat No-lead) or TQFP (Thin Quad Flat Package)
- Pin Count: 32 pins (for QFN package)
- Compliance: USB 2.0 specification compliant

## Applications

The USB2244-AEZG-06 is suitable for a wide range of applications, including:

- Consumer Electronics: Such as TVs, set-top boxes, and gaming consoles that require multiple USB ports for peripherals.
- Computer Peripherals: Including keyboards, mice, and external storage devices.
- Industrial Equipment: Where multiple USB devices need to be connected for data acquisition or control.
- Automotive Applications: For connecting USB devices in vehicles, such as infotainment systems.

## Conclusion

The Microchip Technology USB2244-AEZG-06 is a robust and versatile USB hub controller that meets the demands of modern connectivity solutions. With its high-speed data transfer capabilities, power management features, and wide operating temperature range, it is an ideal choice for designers looking to implement USB connectivity in their products. Whether in consumer electronics, industrial applications, or automotive systems, the USB2244 provides a reliable and efficient solution for expanding USB connectivity.