Full-speed Usb Hub/function Microcontroller - Atmel Corporation

The Atmel AT43USB321 is a single-chip Microcontroller based USB hub with an embedded function and a 16K byte masked ROM. The USB hub has five downstream ports, one of which is permanently attached. Internally the AT43320 consists of a USB hub and function Interface a hub repeater, and a high-performance, efficient 8-bit RISC Microcontroller The hub and peripheral device controller function is imple- mented in the microcontollers firmware. To the USB host, the embedded function appears as an attached port of the hub with its own device address and endpoints. The AT43USB321 CAN also be configured as a USB function without the hub. The USB hardware block consists of a USB transceiver, SIE, hub repeater, endpoint controllers, and an Interface to the Microcontroller The USB hardware Interfaces to the USB host at the transaction level. The CPU of the Microcontroller is based on the Atmel AVR Microcontroller The AVR architecture was developed to be programmed in C efficiently and with maximum performance. By ATMEL Corporation
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AT43USB321 Pinout will be updated soon..., now you can download the pdf datasheet to check the pinouts !
AT43USB321 circuits will be updated soon..., now you can download the pdf datasheet to check the circuits!

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