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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 16. Reset Logic  
DATA BUS  
MCU Status  
Register (MCUSR)  
Power-on Reset  
Circuit  
Brown-out  
Reset Circuit  
BODLEVEL [2..0]  
Pull-up Resistor  
SPIKE  
FILTER  
RSTDISBL  
Watchdog  
Oscillator  
Delay Counters  
Clock  
CK  
Generator  
TIMEOUT  
CKSEL[3:0]  
SUT[1:0]  
Table 20. Reset Characteristics(1)  
Symbol Parameter  
Condition  
Min  
Typ  
Max Units  
Power-on Reset Threshold  
Voltage (rising)  
TBD TBD TBD  
TBD TBD TBD  
V
VPOT  
Power-on Reset Threshold  
V
V
Voltage (falling)(2)  
VRST  
tRST  
RESET Pin Threshold Voltage  
0.1  
0.9  
2.5  
Minimum pulse width on RESET  
Pin  
µs  
Notes: 1. Values are guidelines only. Actual values are TBD.  
2. The Power-on Reset will not work unless the supply voltage has been below VPOT  
(falling)  
41  
2545D–AVR–07/04  
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