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Data Sheet
TUSB8042A Four-Port USB 3.2 x1 Gen1 Hub
1 Features
- Four port USB 3.2 x1 Gen1 (5Gbps) hub
- USB 2.0 hub features
- Multiple transaction translator (MTT) hub: four
transaction translators
- Two asynchronous endpoint buffers per transaction translator
- Supports battery charging:
- Supports D+/D– divider charging port (ACP1, ACP2,
and ACP3) when the upstream port is unconnected or not configured
- Supports automatic mode for transition between DCP or ACP modes when the upstream port is unconnected
- Supports galaxy charging
- CDP mode (upstream port connected)
- DCP mode (upstream port unconnected)
- DCP mode complies with Chinese telecommunications
industry standard YD/T 1591-2009
- Supports operation as a USB 3.2 x1 Gen1 or USB
2.0 compound device
- Per port or ganged power switching and
overcurrent notification inputs
- Supports four external downstream ports
- Supports vendor requests to read and write
I2C and EEPROM read at 100k
- I2C controller supports clock
stretching
- OTP ROM, Serial EEPROM or I2C/SMBus
target interface for custom configurations:
- VID and PID
- Port customizations
- Manufacturer and product
strings (not by OTP ROM)
- Serial number (not by OTP
ROM)
- Application Feature selection
using pin selection or EEPROM or I2C/SMBus target interface
- Provides 128-bit Universally Unique Identifier
(UUID)
- Single clock input, 24MHz crystal or
oscillator
- Downstream ports configurable to USB 2.0
only
- 64-pin QFN package (RGC)
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