Usb 2.0 4-port Hub Controller

GL850 is a 4-port standard Universal Serial Bus (USB) hub controller complies with Universal Serial Bus Specification Revision 2.0. GL850 CAN be connected to an USB1.1 host/hub or an USB2.0 host/hub. When GL850 is connected to an USB1.1 host/hub, it works just like an USB1.1 hub; the upstream port will operate in full-speed (FS) and the downstream port CAN operate in full-speed or low-speed (LS). When GL850 is connected to an USB2.0 host/hub, it works as an USB2.0 hub; the upstream port will operate in high-speed (HS) and the downstream port CAN operate in high-speed, full-speed, or low-speed. The bandwidths of high speed, full speed, and low speed are 480 Mbps, 12 Mbps, and 1.5 Mbps respectively. GL850 embeds an 8-bit RISC processor to manipulate the control/status Registers and responds to the requests from USB host. Firmware of GL850 will control its general purpose I/O (GPIO) to access the external EEPROM and then respond to the host the customized PID and VID configured in the external EEPROM GL850 responds to the host the default settings in the internal ROM if there exists no external EEPROM GL850 is designed for customers with much flexibility. Customers CAN easily design GL850 as 4-port self/bus powered, individual/ganged mode, by setting the I/O pins of GL850 (Ref. to Chapter 5). The more complicated settings such as PID, VID, and number of downstream ports settings are easily achieved by programming the external EEPROM By Unkown
GL850 's PackagesGL850 's pdf datasheet

GL850 Pinout, Pinouts
GL850 pinout,Pin out
This is one package pinout of GL850,If you need more pinouts please download GL850's pdf datasheet.

GL850 circuits will be updated soon..., now you can download the pdf datasheet to check the circuits!

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