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A000003 PDF预览

A000003

更新时间: 2024-10-28 11:44:47
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

A000003 数据手册

 浏览型号A000003的Datasheet PDF文件第28页浏览型号A000003的Datasheet PDF文件第29页浏览型号A000003的Datasheet PDF文件第30页浏览型号A000003的Datasheet PDF文件第32页浏览型号A000003的Datasheet PDF文件第33页浏览型号A000003的Datasheet PDF文件第34页 
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.  
31  
8271DS–AVR–05/11  

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