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PIC18F8621-I/PT 参数 Datasheet PDF下载

PIC18F8621-I/PT图片预览
型号: PIC18F8621-I/PT
PDF下载: 下载PDF文件 查看货源
内容描述: 八十〇分之六十四引脚高性能, 64 KB的增强型闪存微控制器与A / D [64/80-Pin High-Performance, 64-Kbyte Enhanced Flash Microcontrollers with A/D]
分类和应用: 闪存微控制器和处理器外围集成电路装置时钟
文件页数/大小: 396 页 / 6639 K
品牌: MICROCHIP [ MICROCHIP ]
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PIC18F6525/6621/8525/8621  
FIGURE 3-6:  
SLOW RISE TIME (MCLR TIED TO VDD VIA 1 kRESISTOR)  
VDD  
MCLR  
INTERNAL POR  
TPWRT  
PWRT TIME-OUT  
TOST  
OST TIME-OUT  
INTERNAL RESET  
FIGURE 3-7:  
TIME-OUT SEQUENCE ON POR W/PLL ENABLED  
(MCLR TIED TO VDD VIA 1 kRESISTOR)  
VDD  
MCLR  
INTERNAL POR  
TPWRT  
PWRT TIME-OUT  
OST TIME-OUT  
TOST  
TPLL  
PLL TIME-OUT  
INTERNAL RESET  
Note:  
TOST = 1024 clock cycles.  
TPLL 2 ms max. First three stages of the PWRT timer.  
DS39612B-page 38  
2005 Microchip Technology Inc.