|Package | PIN:||HTQFP (PHP) | 48|
|Temp:||I (-40 to 85)|
- Two-Port USB 3.0 Compliant Hub, USBIF TID#330000057
- USB 2.0 Hub Features
- Multi-Transaction Translator (MTT) Hub: Two Transaction Translators
- Four Asynchronous Endpoint Buffers Per Transaction Translator
- Supports Battery Charging
- CDP Mode (Upstream Port Connected)
- DCP Mode (Upstream Port Unconnected)
- DCP Mode Complies With Chinese Telecommunications Industry Standard YD/T1591-2009
- Support D+/D– Divider Mode
- Supports Operation as a USB 3.0 or USB 2.0 Compound Device
- Per Port or Ganged Power Switching and Overcurrent Notification Inputs
- OTP ROM, Serial EEPRO,M or I2C/SMBus Slave Interface for Custom Configurations:
- VID and PID
- Port Customizations
- Manufacturer and Product Strings (notby OTP ROM)
- Serial Number (not by OTP ROM)
- Application Feature Selection Using Terminal Selection or EEPROM/ or I2C/SMBus Slave Interface
- Provides 128-Bit Universally Unique Identifier (UUID)
- Supports On-Board and In-System OTP/EEPROM Programming Through the USB 2.0 Upstream Port
- Single Clock Input, 24-MHz Crystal or Oscillator
- No Special Driver Requirements; Works Seamlessly on any Operating System With USB Stack Support
- 48-Pin HTQFP Package (PHP)
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Texas Instruments TUSB8020BIPHP
The TUSB8020B isa two-port USB 3.0 compliant hub. It provides simultaneous SuperSpeed USB and high-speed/full-speedconnections on the upstream port and provides SuperSpeed USB, high-speed, full-speed, or low-speedconnections on the downstream ports. When the upstream port is connected to an electricalenvironment that only supports high-speed or full-speed/low-speed connections, SuperSpeed USBconnectivity is disabled on the downstream ports. When the upstream port is connected to anelectrical environment that only supports full-speed/low-speed connections, SuperSpeed USB andhigh-speed connectivity are disabled on the downstream ports.
The TUSB8020B supports per port or ganged power switching and overcurrent protection.
An individually port power controlled hub switches power on or off to each downstreamport as requested by the USB host. Also when an individually port power controlled hub senses anovercurrent event, only power to the affected downstream port will be switched off.
A ganged hub switches on power to all its downstream ports when power is required to beon for any port. The power to the downstream ports is not switched off unless all ports are in astate that allows power to be removed. Also when a ganged hub senses an overcurrent event, power toall downstream ports will be switched off.
The TUSB8020B downstream ports provide support for batterycharging applications by providing battery charging connected downstream port (CDP) handshakingsupport. It also supports a dedicated charging port (DCP) mode when the upstream port is notconnected. The DCP mode supports USB devices which support the USB Battery Charging and the ChineseTelecommunications Industry Standard YD/T 1591-2009. In addition, an automatic mode providestransparent support for BC devices and devices supporting Divider Mode charging solutions when theupstream port is unconnected.
The TUSB8020B provides terminal strap configuration for some features including battery charging support, andalso provides customization though OTP ROM, I2C EEPROM or through anI2C/SMBus slave interface for PID, VID, and custom port and phyconfigurations. Custom string support is also available when using anI2C EEPROM or the I2C/SMBus slaveinterface.
The device is available in a 48-pin HTQFP package and is offered in acommercial version (TUSB8020B) for operation over the temperature range of 0°C to 70°C and in anindustrial version (TUSB8020BI) for operation over the temperature range of –40°C to 85°C.