Attiny 8 bit avr microcontrollers atmel attiny13 20pu low power avr 8 bit microcontroller attiny family 27v to 55v supply voltage 1kb flash memory 64bytes eeprom memory 64bytes sram data memory 6 io pins 4ch x 10bit adc channels 1 timers 2 pwm channels 20mhz clock speed 8 dip case high performance low power avr 8 bit microcontroller advanced risc architecture high endurance non volatile memory segments debugwire on chip debug system in system programmable via spi port ext