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ST25R3918 Datasheet(PDF) 20 Page - STMicroelectronics

Part # ST25R3918
Description  Multi-purpose NFC transceiver
PDF  141 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST25R3918 Datasheet(HTML) 20 Page - STMicroelectronics

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Pin and signal description
ST25R3918
20/141
DS13490 Rev 2
17
EXT_LM
AO
External load modulation MOS gate driver
18
NC
-
Do not connect
19
NC
-
Do not connect
20
I2C_EN
DI
I2C interface enable (VDD_D level)
21
VSS
P
Ground, die substrate potential
22
RFI1
AI
Receiver input
23
RFI2
AI
Receiver input
24
AGDC
AIO
Analog reference voltage
25
NC
-
Do not connect
26
GND_A
P
Analog ground
27
IRQ
DO
Interrupt request output
28
MCU_CLK
DO
Clock output for MCU
29
BSS
DI
SPI enable (active low)
30
SCLK
DI
SPI clock / I2C clock
31
MOSI
DI
SPI data input
32
MISO
DO_T
Serial peripheral interface data output / I2C data line
33
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 1. ST25R3918 - VFQFPN32 pin assignment (continued)
VFQFPN32
Name
Type(1)
Description



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