ATMega chip full datasheet - UCSD Department of Physics

ATmega48A/PA/88A/PA/168A/PA/328/P35.8 Errata ATmega328PThe revision letter in this section refers to the revision of the ATmega328P device.35.8.1 Rev D• Analog MUX can be turned off when setting ACME bit1. Analog MUX can be turned off when setting ACME bitIf the ACME (Analog Comparator Multiplexer Enabled) bit in ADCSRB is set while MUX3 inADMUX is '1' (ADMUX[3:0]=1xxx), all MUX'es are turned off until the ACME bit is cleared.Problem Fix/WorkaroundClear the MUX3 bit before setting the ACME bit.35.8.2 Rev C35.8.3 Rev BNot sampled.• Analog MUX can be turned off when setting ACME bit• Unstable 32kHz Oscillator1. Analog MUX can be turned off when setting ACME bitIf the ACME (Analog Comparator Multiplexer Enabled) bit in ADCSRB is set while MUX3 inADMUX is '1' (ADMUX[3:0]=1xxx), all MUX'es are turned off until the ACME bit is cleared.Problem Fix/WorkaroundClear the MUX3 bit before setting the ACME bit.2. Unstable 32kHz OscillatorThe 32kHz oscillator does not work as system clock. The 32kHz oscillator used as asynchronoustimer is inaccurate.Problem Fix/ WorkaroundNone.35.8.4 Rev A• Unstable 32kHz Oscillator1. Unstable 32kHz OscillatorThe 32kHz oscillator does not work as system clock. The 32kHz oscillator used as asynchronoustimer is inaccurate.Problem Fix/ WorkaroundNone.8271D–AVR–05/11556