USB AVR

The USB AVR devices are designed to address the varied requirements of embedded applications needing USB connectivity in all USB modes and OTG.

USB AVR controller with 64 Pins

There are four different devices in 64-pin package with USB interface available.

The USBxxx6 parts are USB devices only and have 128 Kbytes or 64 Kbytes flash memory.

All USBxxx7 devices comply with the USB On-The-Go (OTG) standard for use as Dual Role Devices (DRD) in applications operating as either host or function on the USB.

USB OTG allows devices to communicate without PC intervention.

Features

• USB 2.0 Full Speed / Low Speed
• Seven USB Endpoints
• Device Firmware update 120K / USB < 5 sec. typical
• JTAG, USART,SPI,TWI

The evaluation tool to demonstrate the capabilities of the 64-pin USB AVRs is the AT90USBKEY.

USB AVR controller with 44 Pins

There are two AVR devices in 44-pin package with USB interface available.

The part names are ATmega16U4/32U4 and they have a.USB2.0 full speed / low speed module on-board.

With his 12-channel 10-bit ADC, on-chip PLL for USB and High Speed Timer and on-chip 3.3 volt regulator (50mA) this controller is a unique combination of USB, Battery Charging and Analog Features.

Features

• USB 2.0 Device Full Speed / Low Speed
• Six USB Endpoints
• 12-channel 10-bit ADC
• JTAG, USART,SPI,TWI
• 26 I/Os
• TQFP-44 , QFN-44 package

USB AVR controller with 32 Pins

These controllers have USB 2.0 Full-Speed Device interface on-chip. They are able to handle 4 programmable endpoints. Additionally there is a PS/2 compliant pad. The On-Chip-Debug is a debugWIRE interface.