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ST7SCR 数据表(PDF) 9 Page - STMicroelectronics |
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ST7SCR 数据表(HTML) 9 Page - STMicroelectronics |
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9 / 101 page  ST7SCR 9/101 Notes 1. Keyboard interface 2. It is mandatory to connect all available VDD and VDDA pins to the supply voltage and all VSS and VSSA pins to ground. 57 PA4 I/O CT XX X X Port A4 58 PA5 I/O CT XX X X Port A5 59 21 24 SELF2 O CT An External inductance must be connected to these pins for the step up converter (refer to Figure 5 to choose the right capacitance) 60 21 24 SELF1 O CT 61 22 1 DIODE S CT An External diode must be connected to this pin for the step up converter (refer to Figure 5 to choose the right component) 62 23 2 GNDA S Ground 63 24 3 GND S 64 1 4 CDRVCC O CT X Smartcard Supply pin Pin n° Pin Name Level Port / Control Main Function (after reset) Alternate Function Input Output |
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