Usb2514b-aezc qfn-36 interface IC sold at a low price
Microchip usb251xb / Xbi hub is a series of low-power, configurable MTT (multi transaction converter) hub controller IC products for embedded USB solutions. X in the part number indicates the number of downstream ports, and B indicates battery charging support. Microchip hubs support low-speed, full speed, and high-speed downstream devices (if operating as an organizational hub) on all enabled downstream ports.
Hub with high performance, low power consumption and small floor area
Controller IC with 2, 3 or 4 downstream ports
Fully compliant with USB 2.0 specification [1]
Enhanced OEM configuration options available
Via a single serial I2C EEPROM, or
SMBus slave port
MultiTRAKTM
-High performance multi transaction converter, one transaction converter per port
Port diagram
-Flexible port mapping and disable order
Port switching
-Programmable USB differential pair pin position simplifies PCB design by directly aligning the USB signal line with the connector
PHYBoost
-Programmable USB signal driving strength
Restore signal integrity using 4-stage drive intensity resolution
features
Usb251xb / Xbi products are fully compatible with direct use usb251x / Xi / XA / Xai products
Temporary substitutes
-Cost savings include using the same PCB
Usb-if compatible component and its application
be similar
Single or combined full power management
Power control of each downstream port
Fully integrated USB terminal and pull-up / pull-down resistor
Support single external 3.3 V power supply;
The internal regulator provides an internal core voltage of 1.2 v
On board 24 MHz crystal driver or external
24 MHz clock input
Customizable supplier ID, product ID and equipment
4KV HBM jesd22-a114f ESD protection (powered and unpowered)
Support self powered or bus powered operation
Support USB battery charging specification
1.1 for charging the downstream port (CDP)
Usb251xb / Xbi provides the following software packages:
-36 pin sqfn (6x6mm)
-36 pin QFN (6x6mm) (old style)
Usb251xbi products support the industrial temperature range from - 40 ℃ to + 85 ℃
Usb251xb products support an extended commercial temperature range from 0oC to + 85oc
application
LCD and TV
Multifunctional USB peripheral
PC motherboard
Set top box, DVD player, DVR / PVR
Printers and scanners
PC media drive bay
Portable hub box
Mobile PC docking
Hub with high performance, low power consumption and small floor area
Controller IC with 2, 3 or 4 downstream ports
Fully compliant with USB 2.0 specification [1]
Enhanced OEM configuration options available
Via a single serial I2C EEPROM, or
SMBus slave port
MultiTRAKTM
-High performance multi transaction converter, one transaction converter per port
Port diagram
-Flexible port mapping and disable order
Port switching
-Programmable USB differential pair pin position simplifies PCB design by directly aligning the USB signal line with the connector
PHYBoost
-Programmable USB signal driving strength
Restore signal integrity using 4-stage drive intensity resolution
features
Usb251xb / Xbi products are fully compatible with direct use usb251x / Xi / XA / Xai products
Temporary substitutes
-Cost savings include using the same PCB
Usb-if compatible component and its application
be similar
Single or combined full power management
Power control of each downstream port
Fully integrated USB terminal and pull-up / pull-down resistor
Support single external 3.3 V power supply;
The internal regulator provides an internal core voltage of 1.2 v
On board 24 MHz crystal driver or external
24 MHz clock input
Customizable supplier ID, product ID and equipment
4KV HBM jesd22-a114f ESD protection (powered and unpowered)
Support self powered or bus powered operation
Support USB battery charging specification
1.1 for charging the downstream port (CDP)
Usb251xb / Xbi provides the following software packages:
-36 pin sqfn (6x6mm)
-36 pin QFN (6x6mm) (old style)
Usb251xbi products support the industrial temperature range from - 40 ℃ to + 85 ℃
Usb251xb products support an extended commercial temperature range from 0oC to + 85oc
application
LCD and TV
Multifunctional USB peripheral
PC motherboard
Set top box, DVD player, DVR / PVR
Printers and scanners
PC media drive bay
Portable hub box
Mobile PC docking
Embedded system
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