Schematics
X-NUCLEO-N
FC
03A1
4/
7
D
B2
38
2 R
ev 5
Figure 4. CR95HF / ST25R95 and matching circuitry
1µF
+
C2
1µF
+
C4
742792042
L1
742792042
L2
3.3V
3.3V
3.3V
Interface_Pin
SPI_MISO
SPI_MOSI
SPI_SCK
/SPI_CS_NFC
UART_RX/IRQ_OUT
UART_TX/IRQ_IN
XIN
1
GND
2
GND
4
XOUT
3
Y1
27.12MHz
ANTENNA
2
1
ant1
ANTENNA
3.3V
3.3V
100nF
C1
10nF
C3
10nF
C5
1nF
C7
10pF
C16
10pF
C17
47pF
C8
47pF
C15
100pF
C13
82pF
Ca
NC
Cb
330
Z-RX1
330
Z-RX2
NC
R5
NC
R8
NC
R15
NC
R14
0
R6
0
R7
0
R17
0
R16
3.3k
R13
3.3k
R12
3.3k
R11
3.3k
R10
3.3k
R9
NC
Rq
100nF
C6
1
1
ST1
1
1
ST2
NFM18PS105R0J3D
1
2
3
FL1
742792093
L3
TX1
1
TX2
2
NC
3
NC
4
RX1
5
RX2
6
NC
7
GND
_R
X
8
ST_R
0
9
NC
10
NC
11
UART_RX/IRQ_IN
12
VP
S
13
UART_TX/IRQ_OUT
14
SPI_SS
15
SPI_MISO
16
SPI_MOSI
17
SPI_CLK
18
SSI_0
19
SSI_1
20
ST_R1
21
GND
22
NC
23
NC
24
NC
25
NC
26
NC
27
NC
28
XI
N
29
XOU
T
30
GN
D_
T
X
31
V
PS_TX
32
BAC
K
P
L
A
N
E
33
U1
CR95HF
NC
Cc
100pF
C10
100pF
C9
100pF
C14
NC
C12
NC
C11
560nH
1
1
2
2
L4
560nH
1
1
2
2
L5
