ATMEGA48A_11 ATMEL [ATMEL Corporation], ATMEGA48A_11 Datasheet - Page 31

no-image

ATMEGA48A_11

Manufacturer Part Number
ATMEGA48A_11
Description
8-bit Atmel Microcontroller with 4/8/16/32K Bytes In-System Programmable Flash
Manufacturer
ATMEL [ATMEL Corporation]
Datasheet
11.7
11.7.1
11.7.2
11.7.3
11.7.4
8271DS–AVR–05/11
Errata ATmega328
Rev D
Rev C
Rev B
Rev A
The revision letter in this section refers to the revision of the ATmega328 device.
1.
Not sampled.
1.
2. Unstable 32kHz Oscillator
1.
2. Unstable 32kHz Oscillator
Analog MUX can be turned off when setting ACME bit
Analog MUX can be turned off when setting ACME bit
Unstable 32kHz Oscillator
Analog MUX can be turned off when setting ACME bit
Unstable 32kHz Oscillator
Analog MUX can be turned off when setting ACME bit
If the ACME (Analog Comparator Multiplexer Enabled) bit in ADCSRB is set while MUX3 in
ADMUX is '1' (ADMUX[3:0]=1xxx), all MUX'es are turned off until the ACME bit is cleared.
Problem Fix/Workaround
Clear the MUX3 bit before setting the ACME bit.
Analog MUX can be turned off when setting ACME bit
If the ACME (Analog Comparator Multiplexer Enabled) bit in ADCSRB is set while MUX3 in
ADMUX is '1' (ADMUX[3:0]=1xxx), all MUX'es are turned off until the ACME bit is cleared.
Problem Fix/Workaround
Clear the MUX3 bit before setting the ACME bit.
The 32kHz oscillator does not work as system clock. The 32kHz oscillator used as asyn-
chronous timer is inaccurate.
Problem Fix/ Workaround
None.
Analog MUX can be turned off when setting ACME bit
If the ACME (Analog Comparator Multiplexer Enabled) bit in ADCSRB is set while MUX3 in
ADMUX is '1' (ADMUX[3:0]=1xxx), all MUX'es are turned off until the ACME bit is cleared.
Problem Fix/Workaround
Clear the MUX3 bit before setting the ACME bit.
The 32kHz oscillator does not work as system clock. The 32kHz oscillator used as asyn-
chronous timer is inaccurate.
Problem Fix/ Workaround
None.
ATmega48A/PA/88A/PA/168A/PA/328/P
31

Related parts for ATMEGA48A_11