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ST8024 数据表(PDF) 7 Page - STMicroelectronics |
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ST8024 数据表(HTML) 7 Page - STMicroelectronics |
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7 / 31 page ![]() ST8024 Pin configuration 7/31 19 CMDVCC Start activation sequence input (active low) 20 RSTIN Card reset input from MCU 21 VDD Supply voltage 22 GND Ground 23 OFF Interrupt to MCU (active low) 24 XTAL1 Crystal or external clock input 25 XTAL2 Crystal connection (leave this pin open if external clock is used) 26 I/OUC MCU data I/O line (internal 11 k Ω pull-up resistor connected to VDD) 27 AUX1UC Non-inverting receiver input (internal 11 k Ω pull-up resistor connected to VDD) 28 AUX2UC Non-inverting receiver input (internal 11 k Ω pull-up resistor connected to VDD) Table 2. Pin description (continued) Pin n° Symbol Name and function |
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