Details

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Parameter	Description	Value
Device Name	VT82C42V	-
Type	USB 2.0 Hub Controller	-
Package	QFN-48	-
Operating Voltage	Supply Voltage (VCC)	3.3V 卤 5%
Operating Current	Active Mode Current (Typical)	120mA
Standby Current	Standby Mode Current (Typical)	100渭A
Temperature Range	Operating Temperature	-40掳C to +85掳C
Humidity Range	Operating Humidity	0% to 95% RH
USB Ports	Number of Downstream Ports	4
Data Rate	Maximum Data Transfer Rate	480 Mbps
Compliance	USB 2.0 Compliance	Yes
Power Management	Support for USB Power Management	Yes
Protection	ESD Protection	卤8kV HBM
Certifications	RoHS Compliant	Yes
Features	- Integrated Transceivers - Low Power Consumption - Plug-and-Play Support	-

Instructions

1. Power Supply Connection:

   • Connect the VCC pin to a 3.3V power supply.
   • Ensure the ground (GND) pins are connected to a common ground.

2. USB Connection:

   • Connect the USB upstream port to a host device.
   • Connect the downstream ports to peripheral devices.

3. Power Management:

   • The device supports USB power management features, including suspend and resume states.
   • Ensure the system firmware is configured to manage these states appropriately.

4. ESD Protection:

   • Handle the device with care to avoid electrostatic discharge (ESD).
   • Use ESD protection equipment when handling the device.

5. Layout Considerations:

   • Place decoupling capacitors close to the VCC and GND pins to minimize noise.
   • Use a ground plane to reduce electromagnetic interference (EMI).

6. Firmware Configuration:

   • Ensure the device is properly enumerated by the host system.
   • Configure the hub to support the desired number of downstream ports and data rates.

7. Environmental Conditions:

   • Operate the device within the specified temperature and humidity ranges to ensure reliable performance.

8. Testing:

   • Test the hub with various USB devices to ensure compatibility and functionality.
   • Verify that the hub meets USB 2.0 specifications for data transfer and power delivery.

(For reference only)