Packaging information
| Package | Pins WQFN-MR (RKM) | 100 |
| Operating temperature range (°C) 0 to 70 |
| Package qty | Carrier 3,000 | LARGE T&R |
Features for the TUSB8040A
- USB 3.0 Compliant Hub, TID# 330000037
- Upstream Port Supports SuperSpeed USB,
High-Speed and Full-Speed Connections - Supports Four Downstream Ports
- Each of the Four Downstream Ports Support
SuperSpeed USB, High-Speed, Full-Speed or
Low-Speed Connections
- Upstream Port Supports SuperSpeed USB,
- USB 2.0 Hub Features
- Multi Transaction Translator (MTT) Hub:
Four Transaction Translators, One Per Port - Four Asynchronous Endpoint Buffers Per
Transaction Translator (TT) for Better
Throughput Than the USB Required Minimum
of Two Buffers Per TT
- Multi Transaction Translator (MTT) Hub:
- Supports Battery Charging Applications
- Battery Charging 1.2 Compliant Charging
Downstream Port (CDP) when Upstream Port is
Connected - Battery Charging 1.2 and Chinese Telecommunications
Industry Standard YD/T 1591-2009 Compliant Dedicated
Charging Port (DCP) when Upstream Port is Disconnected
- Battery Charging 1.2 Compliant Charging
- Supports Operation as a USB 3.0 or USB 2.0
Compound Device - Supports Per Port or Ganged Power Switching and
Over-Current Notification Inputs - Provides the following status outputs:
- High-Speed Upstream Connection
- High-Speed Upstream Port Suspended
- SuperSpeed USB Upstream Connection
- SuperSpeed USB Upstream Port Suspended
- Optional Serial EEPROM or SMBus Slave
Interface for Custom Configurations:- VID or PID
- Manufacturer and Product Strings
- Serial Number
- Using Pin Selection or EEPROM and SMBus Slave Interface,
Each Downstream Port Can Be Independently:- Enabled or Disabled
- Marked as Removable or Permanently Attached
(for Compound Applications) - Have Battery Charging Enabled or Disabled
- Provides 128-Bit Universally Unique Identifier (UUID)
- Optionally Supports USB 2.0 Compliant Port Indicator LEDs
- Configurable SMBus Address to Support Multiple Devices
on the Same SMBus Segment - Supports On-Board and In-System EEPROM Programming
Via the USB 2.0 Upstream Port - Single Clock Input, 24-MHz Crystal or Oscillator
- No Special Driver Requirements; Works Seamlessly
With Any Operating System With USB Stack Support
Description for the TUSB8040A
The TUSB8040A is a four-port USB 3.0 compliant hub and is available in a 100-pin QFN package. The device is designed for operation over the commercial temperature range of 0°C to 70°C.
The TUSB8040A provides simultaneous SuperSpeed USB and high-speed or full-speed connections on the upstream port and provides SuperSpeed USB, high-speed, full-speed, or low-speed connections on the downstream ports. When the upstream port is connected to an electrical environment that only supports high-speed, full-speed or low-speed connections, SuperSpeed USB connectivity is disabled on the downstream ports. When the upstream port is connected to an electrical environment that only supports full-speed or low-speed connections, SuperSpeed USB and high-speed connectivity are disabled on the downstream ports.
The TUSB8040A supports up to four downstream ports. It may be configured to report one to four downstream ports by pin selection or by an attached EEPROM or SMBus controller. The configuration options provide the ability to scale the device by application.