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ST25R3912 bảng dữ liệu(PDF) 13 Page - STMicroelectronics

tên linh kiện ST25R3912
Giải thích chi tiết về linh kiện  High performance HF reader / NFC initiator for payment applications with 1 W output power
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nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
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ST25R3912 bảng dữ liệu(HTML) 13 Page - STMicroelectronics

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DS11794 Rev 9
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ST25R3912
Functional overview
66
1.1.11
FIFO
The ST25R3912 contains a 96-byte FIFO. Depending on the mode, it contains either data
that has been received or data to be transmitted.
1.1.12
Control logic
The control logic contains I/O registers that define operation of device.
1.1.13
SPI
A 4-wire serial peripheral interface (SPI) is used for communication between the external
microcontroller and the ST25R3912.
1.2
Application information
The minimum configurations required to operate the ST25R3912 are shown in Figure 2 and
Figure 3.
Figure 2. Minimum configuration with single sided antenna driving (including EMC filter)
MS42436V2
ST25R3912
VDD
/SS
MISO
MOSI
SCLK
IRQ
MCU_CLK
RF01
RF02
RFI1
RFI2
MCU
2.4 to 5.5 V
AGD
VSS
VSP_A
VSP_RF
VSN_RF
VSN_A
VDD_IO
XTI
XTO
1.65 to 5.5 V
VSP_D
VSN_D
Antenna
coil



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