Overview
The TUSB2046IBVFR is a 4-port USB hub controller produced by Texas Instruments. It is a 3.3-V CMOS hub device that complies with the Universal Serial Bus (USB) specification as a full-speed hub. This device features one upstream port and four downstream ports, supporting both full-speed and low-speed operations. The TUSB2046IBVFR is implemented with a digital state machine, eliminating the need for firmware programming. It integrates fully compliant USB transceivers for all upstream and downstream ports and supports suspend and resume operations, making it suitable for various USB-based applications.
Key Specifications
| Parameter | Min | Nom | Max | Unit |
|---|---|---|---|---|
| VCC Supply Voltage | 3 | 3.3 | 3.6 | V |
| Operating Free-Air Temperature (TUSB2046B) | 0 | 70 | °C | |
| Operating Free-Air Temperature (TUSB2046BI, TUSB2046I) | -40 | 85 | °C | |
| Storage Temperature Range | -65 | 150 | °C | |
| Number of Ports | 4 | |||
| Operating Speed | Full-Speed (12 Mbps), Low-Speed (1.5 Mbps) | |||
| Package Type | LQFP-32 (7x7 mm) |
Key Features
- One upstream port and four downstream ports supporting full-speed and low-speed operations.
- Integrated USB transceivers for all ports.
- No firmware programming required due to digital state machine implementation.
- Supports bus-powered and self-powered modes.
- Power switching and overcurrent reporting available in ganged or per-port modes.
- Supports suspend and resume operations.
- Programmable Vendor ID and Product ID with external serial EEPROM.
- Push-pull outputs for PWRON eliminate the need for external pullup resistors.
- Noise filtering on OVRCUR provides immunity to voltage spikes.
- Low EMI emission achieved with a 6-MHz crystal input.
- Enhanced system ESD performance.
- No special driver requirements; works seamlessly with any operating system with USB stack support.
Applications
- Computer Systems
- Docking Stations
- Other USB-based peripherals and hubs.
Q & A
- What is the TUSB2046IBVFR?
The TUSB2046IBVFR is a 4-port USB hub controller produced by Texas Instruments, complying with the Universal Serial Bus (USB) specification as a full-speed hub.
- How many ports does the TUSB2046IBVFR support?
The device supports one upstream port and four downstream ports.
- What are the supported operating speeds of the TUSB2046IBVFR?
The device supports both full-speed (12 Mbps) and low-speed (1.5 Mbps) operations.
- Does the TUSB2046IBVFR require firmware programming?
No, the device is implemented with a digital state machine, eliminating the need for firmware programming.
- What power modes does the TUSB2046IBVFR support?
The device supports both bus-powered and self-powered modes.
- How does the TUSB2046IBVFR handle power switching and overcurrent reporting?
The device provides power switching and overcurrent reporting in either ganged or per-port modes.
- Does the TUSB2046IBVFR support suspend and resume operations?
Yes, the device supports suspend and resume operations.
- Can the Vendor ID and Product ID be programmed on the TUSB2046IBVFR?
Yes, the Vendor ID and Product ID can be programmed using an external serial EEPROM.
- What is the package type of the TUSB2046IBVFR?
The device is available in an LQFP-32 (7x7 mm) package.
- Does the TUSB2046IBVFR require special drivers to operate?
No, the device works seamlessly with any operating system that has USB stack support, without requiring special drivers.
