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STRFNFCA датащи(PDF) 7 Page - STMicroelectronics

номер детали STRFNFCA
подробное описание детали  Near field communication transceiver
PDF  74 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STRFNFCA датащи(HTML) 7 Page - STMicroelectronics

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STRFNFCA
Pin and signal descriptions
Doc ID 023077 Rev 10
7/74
12
UART_RX / IRQ_IN
I (3)
UART receive pin (4)
Interrupt input
13
VPS
P
Main power supply
14
UART_TX / IRQ_OUT
O (5)
UART transmit pin
Interrupt output
15
SPI_SS
I (5)
SPI Slave Select (active low)
16
SPI_MISO
O (5)
SPI Data, Slave Output
17
SPI_MOSI
I (5)
SPI Data, Slave Input (6)
18
SPI_SCK
I (7)
SPI serial clock
19
SSI_0
I (5)
Select serial communication
interface
20
SSI_1
I (5)
Select serial communication
interface
21
ST_R1
I (8)
ST Reserved
22
GND
P
Ground (digital)
23
NC
Not connected
24
NC
Not connected
25
NC
Not connected
26
NC
Not connected
27
NC
Not connected
28
NC
Not connected
29
XIN
Crystal oscillator input
30
XOUT
Crystal oscillator output
31
GND_TX
P
Ground (RF drivers)
32
VPS_TX
P
Power supply (RF drivers)
1.
I: Input, O: Output, and P: Power
2.
Must add a capacitor to ground (68 nF).
3.
Pad internally connected to a Very Weak Pull-up to VPS.
4.
We recommend connecting this pin to the VPS pin using a 3.3 kOhm pull-up resistor.
5.
Pad internally connected to a Weak Pull-up to VPS.
6.
Must not be left floating.
7.
Pad internally connected to a Weak Pull-down to GND.
8.
Pad input in High Impedance. Must be connected to VPS.
Table 2.
STRFNFCA pin descriptions (continued)
Pin
Pin name
Type(1)
Main function
Alternate function



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