aIVR3K21 cpu equivalent, 8-bit cpu.
Embedded OTP memory and 8-bit MCU Built-in oscillator and Power On Reset circuits to reduce external components. 2.2V
– 3.6V single power supply and < 5uA.
Fully integrated system oscillator, power-on reset, 8bit current mode D/A output and PWM direct speaker driving output .
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