AT91SAM7S-ARM-Thumb-Based-Microcontrollers-Atmel-AT91SAM7S64C-AU-32-bit-ARM-thumb-based-microcontroller-AT91SAM7S-family-1-8V-to-3-3V-supply-voltage-64KB-flash-memory-16KB-SRAM-data-memory-32-I-O-pins-8ch-x-10 Bit-ADC-channels-1-timers-4-PWM-channels-30 M Hz-clock-speed-USART-SPI-TWI-interfaces-64-LQFP-case-Atmel-s-AT91SAM7S-is-a-range-of-general-purpose-flash-microcontrollers-that-are-based-on-the-32-bit-ARM-RISC-processor-these-devices-are-an-ideal-migration-path-for-8-bit-users