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Datenblatt-Suchmaschine für elektronische Bauteile |
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Datenblatt-Suchmaschine für elektronische Bauteile |
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ST25R3916 Datenblatt(PDF) 21 Page - STMicroelectronics |
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ST25R3916 Datenblatt(HTML) 21 Page - STMicroelectronics |
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21 / 157 page  DS12484 Rev 4 21/157 ST25R3916/7 Pin and signal description 156 14 E3 VDD_DR P Antenna driver positive supply input 15 F2 RFO2 AO Antenna driver output 16 F1 GND_DR P Antenna driver ground, including driver VSS 17 E2 EXT_LM AO External load modulation MOS gate driver 18 E1 AAT_A AO AAT tune voltage for variable capacitor AAT_A 19 D1 AAT_B AO AAT tune voltage for variable capacitor AAT_B 20 D2 I2C_EN DI I2C interface enable (VDD_D level) 21 C1, C2, C3 VSS P Ground, die substrate potential 22 B1 RFI1 AI Receiver input 23 B2 RFI2 AI Receiver input 24 A2 AGDC AIO Analog reference voltage 25 A1 CSI AIO Capacitor sensor input / Test output 1 26 A3, B3, B4 GND_A P Analog ground 27 A4 IRQ DO Interrupt request output 28 C4 MCU_CLK DO Clock output for MCU 29 A5 BSS DI SPI enable (active low) 30 D3 SCLK DI SPI clock / I2C clock 31 D4 MOSI DI SPI data input 32 B5 MISO DO_T Serial peripheral interface data output / I2C data line 33 NA NA P Thermal pad 1. P: Power supply pin AIO: analog I/O, AI: analog input, AO: analog output DI: digital input, DIPD: digital input with pull-down, DO: digital output, DO_T: digital output/tri-state, DIO: digital bidirectional. Table 2. ST25R3916 - VFQFPN32 and WLCSP36 pin assignment (continued) VFQFPN32 WLCSP Name Type(1) Description Table 3. ST25R3917 - VFQFPN32 pin assignment VFQFPN32 Name Type(1) Description 1 VDD_IO P Positive supply for peripheral communication 2 NC - Pin must be not connected 3 VDD_D AO Digital supply regulator output 4 XTO AO X’tal oscillator output 5 XTI AI/DI X’tal oscillator input, in test mode used as digital input (clock) 6 GND_D P Digital ground 7 VDD_A AO Analog supply regulator output 8 VDD P External positive supply 9 VDD_RF AO Regulated driver supply for antenna drivers |
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