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PFS172 датащи(PDF) 12 Page - PADAUK Technology. |
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PFS172 датащи(HTML) 12 Page - PADAUK Technology. |
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12 / 92 page ![]() PFS172 8bit MTP MCU with 8-bit ADC ©Copyright 2020, PADAUK Technology Co. Ltd Page 12 of 92 PDK-DS-PFS172-EN_V000-May 8, 2020 Pin Name Pin Type & Buffer Type Description PA7 / X1 IO ST / CMOS The functions of this pin can be: (1) Bit 7 of port A. It can be configured as digital input or two-state output, with pull-high / pull-low resistor. (2) X1 is Crystal XIN(X1) when crystal oscillator is used. If this pin is used for crystal oscillator, bit 7 of padier register must be programmed “0” to avoid leakage current. This pin can be used to wake-up system during sleep mode; however, wake-up function is also disabled if bit 7 of padier register is “0”. PA6 / X2 IO ST / CMOS The functions of this pin can be: (1) Bit 6 of port A. It can be configured as digital input or two-state output, with pull-high / pull-low resistor. (2) X2 is Crystal XOUT(X2) when crystal oscillator is used. If this pin is used for crystal oscillator, bit 6 of padier register must be programmed “0” to avoid leakage current. This pin can be used to wake-up system during sleep mode; however, wake-up function is also disabled if bit 6 of padier register is “0”. |
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