Datasheet > A000003

A000003

更新时间： 2022-09-27 10:27:29

品牌	Logo	应用领域
爱特美尔 - ATMEL		闪存微控制器
页数	文件大小	规格书
35页	489K
描述
8-bit Atmel Microcontroller with 4/8/16/32K Bytes In-System Programmable Flash

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A000003 数据手册

ATmega48A/PA/88A/PA/168A/PA/328/P

11.7 Errata ATmega328

The revision letter in this section refers to the revision of the ATmega328 device.

11.7.1

Rev D

• Analog MUX can be turned off when setting ACME bit

1. 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.

11.7.2

11.7.3

Rev C

Rev B

Not sampled.

• Analog MUX can be turned off when setting ACME bit

• Unstable 32kHz Oscillator

1. 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.

2. Unstable 32kHz Oscillator

The 32kHz oscillator does not work as system clock. The 32kHz oscillator used as asyn-

chronous timer is inaccurate.

Problem Fix/ Workaround

None.

11.7.4

Rev A

• Analog MUX can be turned off when setting ACME bit

• Unstable 32kHz Oscillator

1. 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.

2. Unstable 32kHz Oscillator

The 32kHz oscillator does not work as system clock. The 32kHz oscillator used as asyn-

chronous timer is inaccurate.

Problem Fix/ Workaround

None.

8271DS–AVR–05/11

1...28 29 303132 33 34 35

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