The ATTINY44-20SSU is a low-power 8-bit CMOS Microcontroller based on the AVR enhanced RISC architecture. By executing powerful instructions in a single clock cycle, the ATtiny44 achieves throughputs approaching 1MIPS per MHz allowing the system designer to optimize power consumption versus processing speed. The AVR core combines a rich instruction set with 32 general purpose working registers. All 32 registers are directly connected to the arithmetic logic unit (ALU), allowing two independent registers to be accessed in one single instruction executed in one clock cycle. The resulting architecture is more code efficient while achieving throughputs up to ten times faster than conventional CISC microcontrollers. The ATtiny44 provides 4kB of in-system programmable flash, 256byte EEPROM and 256byte SRAM. The device supports a throughput of 20MIPS at 20MHz.
● Advanced RISC architecture
● 120 Powerful instructions most single clock cycle execution
● 32 x 8 General purpose working registers
● Fully static operation
● One 8-bit and one 16-bit timer/counter with two PWM channels, each
● Programmable watchdog timer with separate on-chip oscillator
● On-chip analog comparator
● Universal serial interface
● DebugWIRE on-chip debug system
● In-system programmable via SPI port
● Internal and external interrupt sources - Pin change interrupt on 12 pins
● Low power idle, ADC noise reduction, standby and power-down modes
● Enhanced power-on reset circuit
● Programmable brown-out detection circuit
● Internal calibrated oscillator
● On-chip temperature sensor
● Twelve Programmable I/O lines
● 300µA at 1.8V (1MHz System Clock) Active mode power consumption
