The ATTINY841-MU is a 8-bit high-performance picoPower AVR RISC-based Microcontroller combines 4kB ISP flash memory, 512B EEPROM, 128B SRAM, 12 general purpose I/O lines, 32 general purpose working registers, an 8-bit timer/counter with two PWM channels, two 16-bit timer/counters with two PWM channels, internal and external interrupts, an 12-channel 10-bit A/D converter, 2 On-chip analogue comparators, 2 full duplex USARTs with Start Frame wake up from power down, master/slave SPI serial interface, slave I²C serial interface, programmable gain stage (1x, 20x and 100x) for 12 differential ADC channel pairs, programmable watchdog timer with internal oscillator, internal calibrated oscillator and four software selectable power saving modes. The device operates between 1.7 to 5.5V. By executing powerful instructions in a single clock cycle, the device achieves throughputs approaching 1 MIPS per MHz, balancing power consumption and processing speed.
● Advanced RISC architecture - 120 powerful instructions, most single clock cycle execution
● Non-volatile program and data memories
● Peripheral features - Programmable ultra low power watchdog timer
● Low power idle, ADC noise reduction, standby and power-down modes
● Enhanced power-on reset circuit
● Programmable brown-out detection circuit with supply voltage sampling
● External and internal interrupt sources
● Pin change interrupt on 12 pins
● Calibrated 8MHz oscillator with temperature calibration option
● Calibrated 32kHz ultra low power oscillator
● High-current drive capability on 2 I/O pins
● Low power consumption
