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ATMEGA48PA-CCU 参数 Datasheet PDF下载

ATMEGA48PA-CCU图片预览
型号: ATMEGA48PA-CCU
PDF下载: 下载PDF文件 查看货源
内容描述: [RISC Microcontroller, 8-Bit, FLASH, AVR RISC CPU, 20MHz, CMOS, PBGA32, 4 X 4 MM, 0.60 MM HEIGHT, 0.50 MM PITCH, GREEN, PLASTIC, UFBGA-32]
分类和应用: 闪存微控制器
文件页数/大小: 349 页 / 2752 K
品牌: ATMEL [ ATMEL ]
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ATmega48/88/168  
Figure 109. ADC Power Connections  
PC1 (ADC1)  
PC0 (ADC0)  
ADC7  
GND  
AREF  
ADC6  
AVCC  
PB5  
ADC Accuracy Definitions  
An n-bit single-ended ADC converts a voltage linearly between GND and VREF in 2n  
steps (LSBs). The lowest code is read as 0, and the highest code is read as 2n-1.  
Several parameters describe the deviation from the ideal behavior:  
Offset: The deviation of the first transition (0x000 to 0x001) compared to the ideal  
transition (at 0.5 LSB). Ideal value: 0 LSB.  
Figure 110. Offset Error  
Output Code  
Ideal ADC  
Actual ADC  
Offset  
Error  
VREF  
Input Voltage  
239  
2545D–AVR–07/04  
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