Overview
The TUSB2046BIVFR is a 4-port USB 2.0 full-speed hub device manufactured by Texas Instruments. This device is part of the TUSB2046x series and is designed to comply with the Universal Serial Bus (USB) specification. It features a 3.3-V CMOS hub with one upstream port and four downstream ports, all of which support full-speed and low-speed operations. The device 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 self-powered and bus-powered modes.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | LQFP (VF) | - |
| Pins | 32 | - |
| Operating Temperature Range | 0 to 70 | °C |
| Supply Voltage (VCC) | 3 to 3.6 | V |
| Input Voltage Range | -0.5 to VCC + 0.5 | V |
| Output Voltage Range | -0.5 to VCC + 0.5 | V |
| Input Clamp Current | ±20 | mA |
| Output Clamp Current | ±20 | mA |
| ESD Ratings (HBM) | ±4000 | V |
| ESD Ratings (CDM) | ±1500 | V |
| Operating Free-Air Temperature | 0 to 70 | °C |
| Storage Temperature Range | -65 to 150 | °C |
Key Features
- Fully compliant with the USB specification as a full-speed hub.
- One upstream port and four downstream ports, all supporting full-speed and low-speed operations.
- Integrated USB transceivers for all ports.
- No firmware programming required due to digital state machine implementation.
- 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.
- Package pinout allows 2-layer PCB.
- Low EMI emission achieved by a 6-MHz crystal input.
- Migrated from the proven TUSB2040 hub with lower cost and enhanced system ESD performance.
- No special driver requirements; works seamlessly with any operating system with USB stack support.
- Supports 6-MHz operation through a crystal input or a 48-MHz input clock.
Applications
- Computer systems.
- Docking stations.
- Any system requiring multiple USB ports with full-speed and low-speed device support.
Q & A
- What is the TUSB2046BIVFR? The TUSB2046BIVFR is a 4-port USB 2.0 full-speed hub device manufactured by Texas Instruments.
- How many ports does the TUSB2046BIVFR have? It has one upstream port and four downstream ports.
- What are the power source modes supported by the TUSB2046BIVFR? It supports both self-powered and bus-powered modes.
- Does the TUSB2046BIVFR require firmware programming? No, it does not require firmware programming due to its digital state machine implementation.
- What are the operating temperature ranges for the TUSB2046BIVFR? The operating temperature range is from 0 to 70°C.
- Can the TUSB2046BIVFR support both full-speed and low-speed devices? Yes, all downstream ports support both full-speed and low-speed operations.
- How does the TUSB2046BIVFR manage power switching and overcurrent detection? Power switching and overcurrent detection can be managed either ganged or per port.
- Does the TUSB2046BIVFR support suspend and resume operations? Yes, it supports suspend and resume operations.
- Can the vendor ID and product ID be programmed on the TUSB2046BIVFR? Yes, they can be programmed with an external serial EEPROM.
- What is the benefit of using a 6-MHz crystal input on the TUSB2046BIVFR? It achieves low EMI emission.
- Does the TUSB2046BIVFR require special drivers to operate? No, it works seamlessly with any operating system that has USB stack support.
