The Microchip's ATtiny828 8-bit AVR® RISC-based microcontroller (MCU) with picoPower® technology features 8KB of in-system programmable (ISP) Flash, 256-byte ISP EEPROM, 512-byte internal SRAM, 8-bit timer/counter and 16-bit timer/counter with PWM, 10-bit ADC,USART, TWI, 2x SPI, 32KHz ultra low power oscillator, +-2% accurate 8MHz internal oscillator and debugWIRE for on-chip-debug. The ATtiny828 MCU has 28 GPIO pins and ADC channels available on all pins.
High Performance, Low Power Atmel® AVR® 8-bit Microcontroller Advanced RISC Architecture 123 Powerful Instructions – Most Single Clock Cycle Execution 32 x 8 General Purpose Working Registers Fully Static Operation