TUSB8040BRKMT-Texas Instruments-Price, Stock & Datasheet

The TUSB8040 is USB 3.0 compliant hub available in an 80-pin QFP package. The device is designed for operation over the commercial temperature range of 0°C to 70°C.

The TUSB8040 provides simultaneous SuperSpeed and high-speed/full-speed connections on the upstream port and provides SuperSpeed, 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 or full-speed/low-speed connections, SuperSpeed connectivity is disabled on the downstream ports. When the upstream port is connected to an electrical environment that only supports full-speed/lowspeed connections, SuperSpeed and high-speed connectivity are disabled on the downstream ports.

The TUSB8040 supports up to four downstream ports. It may be configured to report one to four downstream ports by pin selection or an attached EEPROM or SMBus controller. The configuration options provide the ability to scale the device by application.

USB 3.0 Compliant Four Port Hub, TID# 330000003
- Upstream Port Supports SuperSpeed, High-Speed
  and Full-Speed Connections
- Each of the Four Downstream Ports Support SuperSpeed,
  High-Speed, Full-Speed/Low-Speed Connections
USB 2.0 Hub Features
- Multi Transaction Translator (MTT) Hub:
  Four Transaction Translators, One Per Port
- Four (Over USB Required Minimum of Two) Asynchronous
  Endpoint Buffers Per Transaction Translator for
  Better Throughput
Supports Charging Downstream Port (CDP) Applications
- Battery Charging 1.2 Compliant
Supports Operation as a USB 3.0 or USB 2.0 Compound
Device
Supports Per Port or Ganged Power Switching and
Over-Current Protection
Provides the following status outputs:
- High-Speed Upstream Connection
- High-Speed Upstream Port Suspended
- SuperSpeed Upstream Connection
- SuperSpeed Upstream Port Suspended
Optional Serial EEPROM or SMBus Slave Interface
for Custom Configurations:
- VID/PID
- Manufacturer and Product Strings
- Serial Number
Using Pin Selection or the EEPROM/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
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