Overview
The TUSB2046BVF is a 3.3-V CMOS hub device produced by Texas Instruments, designed to comply with the Universal Serial Bus (USB) specification as a full-speed hub. This device features one upstream port and four downstream ports, making it suitable for various USB-based applications. The TUSB2046BVF is implemented with a digital state machine, eliminating the need for firmware programming. It integrates fully compliant USB transceivers for all ports and supports both full-speed and low-speed operations.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | LQFP (VF) | - |
| Pins | 32 | - |
| Operating Temperature Range | 0 to 70 | °C |
| Supply Voltage | 3.0 to 3.6 | V |
| Input Voltage Range | -0.5 to VCC + 0.5 | V |
| Output Voltage Range | -0.5 to VCC + 0.5 | V |
| Operating Free-Air Temperature | 0 to 70 | °C |
| Storage Temperature Range | -65 to 150 | °C |
| ESD Rating (HBM) | ±4000 | V |
| ESD Rating (CDM) | ±1500 | V |
| Clock Frequency | 6 MHz or 48 MHz | - |
Key Features
- Fully compliant with the USB specification as a full-speed hub
- 32-pin LQFP package with 0.8-mm terminal pitch
- 3.3-V low-power ASIC logic
- Integrated USB transceivers for all upstream and downstream ports
- No firmware programming required due to state machine implementation
- One upstream port and four downstream ports supporting full-speed and low-speed operations
- Two power source modes: self-powered and bus-powered
- Power switching and overcurrent reporting provided ganged or per port
- Supports suspend and resume operations
- Programmable vendor ID and product ID with external serial EEPROM
- 3-state EEPROM interface allows EEPROM sharing
- 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 by 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
- USB hubs and peripherals
- Embedded systems requiring USB connectivity
Q & A
- What is the TUSB2046BVF?
The TUSB2046BVF is a 3.3-V CMOS hub device that provides one upstream port and four downstream ports in compliance with the Universal Serial Bus (USB) specification as a full-speed hub.
- What package types are available for the TUSB2046BVF?
The TUSB2046BVF is available in a 32-pin LQFP (VF) package and also in a QFN package with a 0.5-mm pin pitch.
- What are the operating temperature ranges for the TUSB2046BVF?
The operating temperature range for the TUSB2046BVF is 0 to 70°C, and the storage temperature range is -65 to 150°C.
- Does the TUSB2046BVF require firmware programming?
No, the TUSB2046BVF does not require firmware programming due to its state machine implementation.
- What power source modes does the TUSB2046BVF support?
The TUSB2046BVF supports both self-powered and bus-powered modes.
- How does the TUSB2046BVF handle power switching and overcurrent detection?
The TUSB2046BVF provides power switching and overcurrent reporting, which can be configured to operate either ganged or per port.
- Does the TUSB2046BVF support suspend and resume operations?
- Can the vendor ID and product ID be programmed on the TUSB2046BVF?
- What is the significance of the 6-MHz crystal input in the TUSB2046BVF?
The 6-MHz crystal input helps achieve low EMI emission by generating a 48-MHz clock through an internal PLL.
- Are special drivers required for the TUSB2046BVF to work with operating systems?
- What are some common applications of the TUSB2046BVF?
