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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 ]
 浏览型号ATMEGA48PA-CCU的Datasheet PDF文件第120页浏览型号ATMEGA48PA-CCU的Datasheet PDF文件第121页浏览型号ATMEGA48PA-CCU的Datasheet PDF文件第122页浏览型号ATMEGA48PA-CCU的Datasheet PDF文件第123页浏览型号ATMEGA48PA-CCU的Datasheet PDF文件第125页浏览型号ATMEGA48PA-CCU的Datasheet PDF文件第126页浏览型号ATMEGA48PA-CCU的Datasheet PDF文件第127页浏览型号ATMEGA48PA-CCU的Datasheet PDF文件第128页  
BOTTOM+1 and so on. The same renaming applies for modes that set the TOV1 Flag  
at BOTTOM.  
Figure 52. Timer/Counter Timing Diagram, no Prescaling  
clkI/O  
clkTn  
(clkI/O/1)  
TCNTn  
TOP - 1  
TOP - 1  
TOP  
TOP  
BOTTOM  
TOP - 1  
BOTTOM + 1  
TOP - 2  
(CTC and FPWM)  
TCNTn  
(PC and PFC PWM)  
TOVn (FPWM)  
and ICFn (if used  
as TOP)  
OCRnx  
(Update at TOP)  
New OCRnx Value  
Old OCRnx Value  
Figure 53 shows the same timing data, but with the prescaler enabled.  
Figure 53. Timer/Counter Timing Diagram, with Prescaler (fclk_I/O/8)  
clk  
I/O  
clk  
(clkT/n8)  
I/O  
TCNTn  
TOP - 1  
TOP - 1  
TOP  
TOP  
BOTTOM  
TOP - 1  
BOTTOM + 1  
TOP - 2  
(CTC and FPWM)  
TCNTn  
(PC and PFC PWM)  
TOVn(FPWM)  
and ICFn(if used  
as TOP)  
OCRnx  
(Update at TOP)  
Old OCRnx Value  
New OCRnx Value  
124  
ATmega48/88/168  
2545D–AVR–07/04  
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