The AT90PWM3B-16MU from Microchip Technology is an AVR 90PWM lighting microcontroller Integrated Circuit with 8-bit architecture, 16 MHz clock and 8 KB (8K x 8) flash memory, in a 32-QFN (7x7) package.
The AT90PWM3B-16MUR from Atmel is an AVR 90PWM lighting microcontroller Integrated Circuit with an 8-bit core, a 16 MHz clock and 8 KB (8K x 8) flash memory, in a 32-QFN (5x5) package.
The AT90PWM3B-16SUR from Microchip Technology is an AVR 90PWM lighting 8-bit microcontroller Integrated Circuit with 16 MHz and 8 KB (8K x 8) flash memory, in a 32-SOIC package.
The AT90PWM3B-16SU from Microchip Technology is an AVR 90PWM lighting microcontroller Integrated Circuit with 8-bit architecture, 16 MHz clock and 8 KB (8K x 8) flash, in a 32-SOIC package.