Overview
The TUSB2046BVFG4 is a 3.3-V CMOS hub device manufactured by Texas Instruments. It is designed to comply with the Universal Serial Bus (USB) specification as a full-speed hub, providing one upstream port and four downstream ports. This device is implemented with a digital state machine, eliminating the need for firmware programming. Integrated USB transceivers ensure full compliance with USB standards for all ports.
The TUSB2046BVFG4 supports both bus-powered and self-powered modes, selected via the BUSPWR pin. It also features power switching and overcurrent reporting, which can be configured to operate either on a ganged or per-port basis. The device is highly versatile, supporting 6-MHz or 48-MHz clock operations and low EMI emission through a 6-MHz crystal input.
Key Specifications
| Parameter | Value |
|---|---|
| Package Type | 32-Pin LQFP or 32-Pin VQFN |
| Pin Pitch | 0.8-mm (LQFP), 0.5-mm (VQFN) |
| Operating Temperature Range | 0°C to 70°C |
| Logic Voltage | 3.3 V |
| Upstream Ports | 1 |
| Downstream Ports | 4 |
| Power Source Modes | Bus-Powered, Self-Powered |
| Clock Frequency | 6 MHz or 48 MHz |
| Junction Temperature Range | -40°C to 115°C |
Key Features
- Fully compliant with the USB specification as a full-speed hub.
- 32-Pin LQFP or 32-Pin VQFN package with 0.8-mm or 0.5-mm pin pitch respectively.
- Integrated USB transceivers for all upstream and downstream ports.
- No firmware programming required due to state machine implementation.
- Supports full-speed and low-speed operations on all downstream ports.
- Power switching and overcurrent reporting on a ganged or per-port basis.
- Supports suspend and resume operations.
- Programmable Vendor ID and Product ID with external serial EEPROM.
- Push-pull outputs for PWRON pins, eliminating the need for external pullup resistors.
- Noise filtering on OVRCUR pins for immunity to voltage spikes.
- Low EMI emission achieved through a 6-MHz crystal input.
- Enhanced system ESD performance and no special driver requirements.
Applications
- Computer systems.
- Docking stations.
- Printers, scanners, and other USB peripherals.
- USB hubs and multi-port devices.
- Embedded systems requiring USB connectivity.
Q & A
- What is the TUSB2046BVFG4?
The TUSB2046BVFG4 is a 3.3-V CMOS hub device that provides one upstream port and four downstream ports, compliant with the Universal Serial Bus (USB) specification as a full-speed hub.
- What are the package options for the TUSB2046BVFG4?
The device is available in 32-Pin LQFP and 32-Pin VQFN packages with 0.8-mm and 0.5-mm pin pitches respectively.
- Does the TUSB2046BVFG4 require firmware programming?
No, the device is implemented with a digital state machine, eliminating the need for firmware programming.
- What power source modes does the TUSB2046BVFG4 support?
The device supports both bus-powered and self-powered modes.
- How does the TUSB2046BVFG4 handle overcurrent conditions?
The device provides power switching and overcurrent reporting, which can be configured to operate either on a ganged or per-port basis.
- What clock frequencies does the TUSB2046BVFG4 support?
The device supports both 6-MHz and 48-MHz clock frequencies.
- Does the TUSB2046BVFG4 require special drivers?
No, the device works seamlessly with any operating system that has USB stack support, requiring no special drivers.
- How does the TUSB2046BVFG4 manage power to its downstream ports?
The device manages power to its downstream ports through external power-management devices, with options for ganged or individual-port management.
- What is the operating temperature range of the TUSB2046BVFG4?
The operating temperature range is from 0°C to 70°C.
- Does the TUSB2046BVFG4 support suspend and resume operations?
