The ATTINY261A-SU 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 devices achieve 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 ATtiny261A provides 2kB of In-system programmable flash, 128byte EEPROM and 128byte SRAM.
Advanced RISC architecture
123 Powerful instructions most single clock cycle execution
32 x 8 General purpose working registers
Fully static operation
Up to 20MIPS throughput at 20MHz
On-chip analog comparator
Programmable watchdog timer with separate on-chip oscillator
Universal serial interface with start condition detector
Interrupt and wake-up on pin change
DebugWIRE on-chip debug system
Power-on reset and programmable brown-out detection
Internal calibrated oscillator
External and internal interrupt sources
Four sleep modes - Low power idle, ADC noise reduction, standby and power-down
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