The AT90USB1287-AUR from Microchip Technology is an AVR 90USB 8-bit microcontroller Integrated Circuit running at 16 MHz with 128 KB (128K x 8) flash memory, in a 64-TQFP (14x14) package.
The AT90USB1287-16AUR from Microchip Technology is an AVR 90USB microcontroller with an 8-bit core, 16 MHz clock and 128 KB (128K x 8) flash, in a 64-TQFP (14x14) package.
The AT90USB1287-AU from Microchip Technology is an AVR 90USB microcontroller Integrated Circuit with 8-bit architecture, 16 MHz, 128KB (128K x 8) flash and a 64-TQFP (14x14) package.
The AT90USB1287-MUR from Microchip Technology is an 8-bit AVR 90USB MCU with a 16 MHz clock and 128KB (128K x 8) flash memory, in a 64-QFN (9x9) package.
The AT90USB1287-16AU from Atmel is an AVR RISC 8-bit microcontroller Integrated Circuit with a 16 MHz clock and 128 KB (128K x 8) flash memory, in a 64-TQFP (14x14) package.
The AT90USB1287-MU from Microchip Technology is an AVR 90USB 8-bit microcontroller Integrated Circuit running at 16 MHz with 128KB (128K x 8) flash memory in a 64-QFN (9x9) package.