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ST25R3911B 数据表(PDF) 97 Page - STMicroelectronics |
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ST25R3911B 数据表(HTML) 97 Page - STMicroelectronics |
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97 / 116 page ![]() Pin number Pin name Pin type Description 17 Analog I/O Input to trim antenna resonant circuit TRIM1_1 18 TRIM2_1 19 TRIM1_0 20 TRIM2_0 21 VSS Supply pad Ground, die substrate potential 22 RFI1 Analog input Receiver input 23 RFI2 24 AGD Analog I/O Analog reference voltage 25 CSI Analog input Capacitor sensor input 26 VSN_A Supply pad Analog ground 27 IRQ Digital output Interrupt request output 28 MCU_CLK Microcontroller clock output 29 MISO Digital output / tristate Serial Peripheral Interface data output 30 MOSI Digital input Serial Peripheral Interface data input 31 SCLK Serial Peripheral Interface clock 32 /SS Serial Peripheral Interface enable (active low) 33 VSS Supply Ground, die substrate potential, connected to VSS on PCB ST25R3911B Pinouts and pin description DS11793 - Rev 6 page 97/116 |
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