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PIC18F258-E/PSQTP 数据表(PDF) 31 Page - Microchip Technology |
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PIC18F258-E/PSQTP 数据表(HTML) 31 Page - Microchip Technology |
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31 / 402 page ![]() © 2006 Microchip Technology Inc. DS41159E-page 29 PIC18FXX8 FIGURE 3-6: SLOW RISE TIME (MCLR TIED TO VDD) FIGURE 3-7: TIME-OUT SEQUENCE ON POR W/PLL ENABLED (MCLR TIED TO VDD) VDD MCLR INTERNAL POR PWRT TIME-OUT OST TIME-OUT INTERNAL RESET 0V 1V 5V TPWRT TOST TPWRT TOST VDD MCLR IINTERNAL POR PWRT TIME-OUT OST TIME-OUT INTERNAL RESET PLL TIME-OUT TPLL Note: TOST = 1024 clock cycles. TPLL ≈ 2 ms max. First three stages of the PWRT timer. |
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