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H8SX/1663 数据表(PDF) 1018 Page - Renesas Technology Corp |
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H8SX/1663 数据表(HTML) 1018 Page - Renesas Technology Corp |
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1018 / 1158 page ![]() Section 22 Clock Pulse Generator Rev.1.00 Jun. 07, 2006 Page 966 of 1102 REJ09B0294-0100 Figure 22.7 shows an equivalent circuit for the 32.768-kHz crystal resonator. OSC1 OSC2 C s L s R s C o C o = 1.5 pF (typ.) R s = 14 kΩ (typ.) fw = 32.768 kHz Figure 22.7 Equivalent Circuit for 32.768-kHz Crystal Resonator 22.5.2 Handling of Pins when the Subclock is Not to be Used If the subclock is not required, connect the OSC1 pin to Vss and leave the OSC2 pin open, as shown in figure 22.8. OSC1 OSC2 Open Figure 22.8 Pin Handling when Subclock is not Used |
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