The ATTINY461-20PU 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 ATtiny461 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 ATtiny461 4kB of in-system programmable flash, 256byte EEPROM and 256byte SRAM. The device achieves a throughput of 20MIPS at 20MHz.
● Advanced RISC architecture
● 123 Powerful instructions most single clock cycle execution
● 32 x 8 General purpose working registers
● Fully static operation
● On-chip analog comparator
● Programmable watchdog timer with separate on-chip oscillator
● Universal serial interface with start condition detector
● DebugWIRE on-chip debug system
● In-system programmable via SPI port
● External and internal interrupt sources
● 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
● 16 Programmable I/O lines
