Tusb2046birhbr USB interface IC has the lowest price
describe
Tusb2046x is a 3.3-vcmos hub device that provides one upstream port and four downstream ports as a full speed hub according to the universal serial bus (USB) specification. Because this device is implemented by digital state machine rather than microcontroller, there is no firmware
Programming is required. Compatible USB transceivers are integrated into all upstream and downstream ports of the ASIC. The downstream port supports full speed and low speed devices by automatically setting the rotation rate according to the speed of the device connected to the port. The configuration of buspwr pin can select bus power supply mode or self power supply mode.
Configure the serial input to determine the power switching and overcurrent detection mode of the downstream port. If the connection is high, all pwron outputs are switched together. If any ovrcur is activated, all ports are switched to the power-off state. If the ganglion value is low, the pwron output and ovrcur input operate on each port.
features
• USB compliant as a whole
Full speed hub: TID 3020231
• 32 pin LQFP (1) package with 0.8mm terminals
Pitch or QFN package with 0.5mm pin pitch
• 3.3-V low power ASIC logic
• integrated USB transceiver
• state machine implementation does not require
firmware programming
• one upstream port and four downstream ports
• all downstream ports support full speed and
Low speed operation
• two power modes
– self powered mode
– bus power supply mode
• power switching and overcurrent reports are not available
Provide combination or each port
• support pause and resume operations
• support programmable supplier IDs and products
ID with external Serial EEPROM
• 3 State EEPROM interface allows EEPROM
share
• the push-pull output of pwron eliminates the need for
For external pull-up resistor
• noise filtering on ovrcur provides anti-interference capability
voltage spike
• package pins allow 2 layers of PCB
• low EMI emission via 6-MHz crystals
input
• migrate from a proven tusb2040 hub
• lower cost * than tusb2040 hub
• enhance system ESD performance
• no special driver requirements; works
Seamless connection with any operating system with USB
Stack support
• 6-MHz operation supported by crystal
Input or 48 MHz input clock
application
• computer system
• docking station
Tusb2046x is a 3.3-vcmos hub device that provides one upstream port and four downstream ports as a full speed hub according to the universal serial bus (USB) specification. Because this device is implemented by digital state machine rather than microcontroller, there is no firmware
Programming is required. Compatible USB transceivers are integrated into all upstream and downstream ports of the ASIC. The downstream port supports full speed and low speed devices by automatically setting the rotation rate according to the speed of the device connected to the port. The configuration of buspwr pin can select bus power supply mode or self power supply mode.
Configure the serial input to determine the power switching and overcurrent detection mode of the downstream port. If the connection is high, all pwron outputs are switched together. If any ovrcur is activated, all ports are switched to the power-off state. If the ganglion value is low, the pwron output and ovrcur input operate on each port.
features
• USB compliant as a whole
Full speed hub: TID 3020231
• 32 pin LQFP (1) package with 0.8mm terminals
Pitch or QFN package with 0.5mm pin pitch
• 3.3-V low power ASIC logic
• integrated USB transceiver
• state machine implementation does not require
firmware programming
• one upstream port and four downstream ports
• all downstream ports support full speed and
Low speed operation
• two power modes
– self powered mode
– bus power supply mode
• power switching and overcurrent reports are not available
Provide combination or each port
• support pause and resume operations
• support programmable supplier IDs and products
ID with external Serial EEPROM
• 3 State EEPROM interface allows EEPROM
share
• the push-pull output of pwron eliminates the need for
For external pull-up resistor
• noise filtering on ovrcur provides anti-interference capability
voltage spike
• package pins allow 2 layers of PCB
• low EMI emission via 6-MHz crystals
input
• migrate from a proven tusb2040 hub
• lower cost * than tusb2040 hub
• enhance system ESD performance
• no special driver requirements; works
Seamless connection with any operating system with USB
Stack support
• 6-MHz operation supported by crystal
Input or 48 MHz input clock
application
• computer system
• docking station