Overview
The TUSB8040A1RKMR from Texas Instruments is a four-port USB 3.0 compliant hub controller designed to support a wide range of USB connectivity needs. This device is part of the TUSB8040A1 family and is packaged in a 100-pin WQFN (Wafer Quad Flat No-Lead) package. It operates over the commercial temperature range of 0°C to 70°C, making it suitable for various applications. The hub supports SuperSpeed USB, high-speed, full-speed, and low-speed connections on both the upstream and downstream ports, ensuring compatibility with a broad spectrum of USB devices.
Key Specifications
| Parameter | Description | Value |
|---|---|---|
| Package Type | 100-pin WQFN | 9 mm × 9 mm |
| Operating Temperature Range | Commercial temperature range | 0°C to 70°C |
| Upstream Port Support | SuperSpeed USB, high-speed, full-speed | - |
| Downstream Ports | Number of ports | Four |
| Downstream Port Support | SuperSpeed USB, high-speed, full-speed, low-speed | - |
| Supply Voltage (VDD33) | Steady-state supply voltage | -0.3 V to 3.8 V |
| Supply Voltage (VDD11) | Steady-state supply voltage | -0.3 V to 1.4 V |
| Clock Input | Single clock input | 24-MHz crystal or oscillator |
| Thermal Resistance (θJA) | Junction-to-ambient thermal resistance | 25.6 °C/W |
Key Features
- USB 3.0 Compliance: Supports SuperSpeed USB, high-speed, full-speed, and low-speed connections on both upstream and downstream ports.
- Multiple Transaction Translators: Four transaction translators, one per port, with four asynchronous endpoint buffers per transaction translator for enhanced throughput.
- Battery Charging Support: Supports Battery Charging 1.2 (CDP) and Chinese Telecommunications Industry Standard YD/T 1591-2009 (DCP) for battery charging applications.
- Power Management: Per port or ganged power switching and overcurrent notification inputs. Supports full power management and SMBus address configuration.
- Status Outputs: Provides status outputs for high-speed and SuperSpeed USB connections, including suspended states.
- Custom Configurations: Optional serial EEPROM or SMBus target interface for custom configurations such as VID, PID, manufacturer and product strings, and serial number.
- Port Configuration: Each downstream port can be independently enabled or disabled, marked as removable or permanently attached, and have battery charging enabled or disabled.
- UUID and LEDs: Provides a 128-bit universally unique identifier (UUID) and optionally supports USB 2.0 compliant port indicator LEDs.
- SMBus Support: Configurable SMBus address to support multiple devices on the same SMBus segment. Supports onboard and in-system EEPROM programming through the USB 2.0 upstream port.
- No Special Driver Requirements: Works seamlessly with any operating system that has USB stack support.
Applications
- Computer Systems: Ideal for integrating multiple USB ports into desktop and laptop systems.
- Docking Stations: Enhances the functionality of docking stations by providing multiple high-speed USB ports.
- Monitors: Can be used in USB-enabled monitors to expand connectivity options.
- Set-top Boxes: Suitable for set-top boxes and other consumer electronics requiring multiple USB ports.
Q & A
- What is the TUSB8040A1RKMR?
The TUSB8040A1RKMR is a four-port USB 3.0 compliant hub controller from Texas Instruments.
- What types of USB connections does the TUSB8040A1RKMR support?
The device supports SuperSpeed USB, high-speed, full-speed, and low-speed connections on both the upstream and downstream ports.
- How many downstream ports does the TUSB8040A1RKMR have?
The device supports up to four downstream ports.
- Does the TUSB8040A1RKMR support battery charging?
Yes, it supports Battery Charging 1.2 (CDP) and Chinese Telecommunications Industry Standard YD/T 1591-2009 (DCP) for battery charging applications.
- What is the operating temperature range of the TUSB8040A1RKMR?
The device operates over the commercial temperature range of 0°C to 70°C.
- Does the TUSB8040A1RKMR require special drivers?
No, it works seamlessly with any operating system that has USB stack support.
- What is the package type of the TUSB8040A1RKMR?
The device is packaged in a 100-pin WQFN (Wafer Quad Flat No-Lead) package.
- Can the TUSB8040A1RKMR be configured for custom applications?
Yes, it supports optional serial EEPROM or SMBus target interface for custom configurations.
- What are some common applications of the TUSB8040A1RKMR?
Common applications include computer systems, docking stations, monitors, and set-top boxes.
- How does the TUSB8040A1RKMR manage power to the downstream ports?
The device supports per port or ganged power switching and overcurrent notification inputs.
