NuMaker-LoRaD470/868/915-M252
Dec. 21, 2020
Page
26
of 31
Rev 1.00
N
UMA
K
E
R
-L
O
RA
D
47
0/8
6
8/9
1
5
-M2
5
2
U
S
E
R
M
A
NU
A
L
Ma
k
er Nu
-m
be
d
NUC
47
2
Us
er Man
ua
l
4.2
M252 Target Board
Figure 4-2 shows the M252 target board circuit.
Figure 4-2 M252 Target Board Circuit
PD2_LoRa_SPI_CLK
PD0_LoRa_SPI_MOSI
PC0_NU4_SDA
PC1_NU4_SCL
J1
HEADER 2.54 5X2 (NC)
1
2
3
4
5
6
7
8
9
10
USB_VBUS
PD3_LoRa_SPI_SS
PD1_LoRa_SPI_MISO
TICEDAT
TICECLK
USB_D-
PB12_RXD0
PB13_TXD0
ICE
USB_D+
USB_VDD33_CAP
D-
USB_VBUS
D+
J3
NC
1
2
3
4
5
SW1
3x6x5 2PIN SMD
SW-2P-SMD
C9
10u
C0603
R3
10KR
R0603
RESET
VDD
nRESET
P17
P21
P22
P23
P24
P25
P26
P27
PB7_NU2_A0
PB8_LoRa_DIO2
PB9_LoRa_DIO3
PB14_LED_R
PB11_LoRa_DIO5
VDD_MCU
LDO_CAP
GND
AVSS
VREF
AVDD
PB10_LoRa_DIO4
MCU_TX
MCU_RX
PB15_NU5_GPIO
PC14
P117
PB14_LED_R
P118
PB13_TXD0
P113
LDO_CAP
P114
VDD_2
P33
P121
P120
P119
PB12_RXD0
P115
P116
P34
P126
P125
P124
P122
P123
P35
P100
P99
P98
P97
P128
P127
P36
P105
P104
P103
P102
P101
P39
P110
P109
P108
P107
P106
P40
P112
P111
P77
P78
P79
P80
P81
1
2
LEDG1
Green
LED0805
P82
P83
P103
P104
P107
P108
P109
P110
P111
SW2
SMD HPS602-E
PC3_NU3_D4
PC4_NU3_D2
PC5_NU3_D3
PC2_NU3_D5
PA4_NU3_D9
PA7_NU3_D6
PA6_NU3_D7
PA5_NU3_D8
nRESET
PF1_ICE_CLK
PF0_ICE_DAT
R14
100KR
R0603
VDD
R13
100KR
R0603
UP2
AMS1117_5v
IN
3
GN
D
1
OU
T
2
OU
T
4
Tit le
Size
Docum ent Num ber
Rev
Dat e:
Sheet
of
NuMaker-LoRaD-M252
v1.1
M252KG6AE
Custom
2
4
Monday , August 03, 2020
Bypass Cap
R17
0
C18
1u
C0603
P33 - P64
P1 - P32
P97 - P128
VBAT
NC
1
2
C19
0.1u
VBAT
VDD_MCU
NU1_VIN
R7
330R
R0603
1
2
D2
SS24A
PC12
PC10
PC11
PC9
VDD_MCU
GND
C4
0.1u
C0603
PD12
PD11
C3
0.1u
C0603
PD10
PF7
PE8
C5
1u
C0603
PE10
PE9
PE11
R6
330R
R0603
PE12
CT5
10uF/10V
TANT-A
1
2
PE13
1
2
LEDR1
Red
LED0805
PC8
VDD
VDD_MCU
PE14
PE15
PD9
PD8
GND
VDD_MCU
PD6
PD4
PD7
PD5
PD13
PE7
PE6
PE5
PE4
PE3
PE2
PE1
PE0
C20
0.1u
C0603
U1
<M252KG6AE>
PB.
5/
EAD
C
0_C
H
5/
AC
M
P1_N
/EBI
_AD
R
0/
I2C
0_SC
L/
U
SC
I1_C
T
L0/
SC
0_C
LK/
PW
M
0_C
H
0/
PSI
O0_C
H
4/
U
AR
T
2
_T
XD
/T
M
0/
IN
T
0
1
PB.
4/
EAD
C
0_C
H
4/
AC
M
P1_P1/
EBI
_AD
R
1/
I2C
0_SD
A/
U
SC
I1_C
T
L1/
SC
0_D
AT
/PW
M
0_C
H
1/
PSI
O0_C
H
5/
U
AR
T
2_R
XD
/T
M
1/
IN
T
1
2
PB.
3/
EAD
C
0_C
H
3/
AC
M
P0_N
/EBI
_AD
R
2/
I2C
1_SC
L/
U
AR
T
1_T
XD
/U
SC
I1_D
AT
1/
SC
0_R
ST
/PW
M
0_C
H
2/
PSI
O0
_C
H
6/
PW
M
0_BR
AKE0/
T
M
2/
IN
T
2
3
PB.
2/
EAD
C
0_C
H
2/
AC
M
P0_P1/
OPA0_O/
EBI
_AD
R
3/
I2C
1_SD
A/
U
AR
T
1_R
XD
/U
SC
I1_D
AT
0/
SC
0_PW
R
/PW
M
0_
C
H
3/
PSI
O0_C
H
7/
T
M
3/
IN
T
3
4
PC
.12/
EBI
_AD
R
4/
U
AR
T
0_T
XD
/I
2C
0_SC
L/
SC
0_nC
D
/PW
M
1_C
H
0/
AC
M
P0_O
5
PC
.11/
EBI
_AD
R
5/
U
AR
T
0_R
XD
/I
2C
0_SD
A/
PW
M
1_C
H
1/
AC
M
P1_O
6
PC
.10/
EBI
_AD
R
6/
PW
M
1_C
H
2
7
PC
.9/
EBI
_AD
R
7/
PW
M
1_C
H
3
8
PB.
1/
EAD
C
0_C
H
1/
OPA0_N
/EBI
_AD
R
8/
U
AR
T
2_T
XD
/U
SC
I1_C
LK/
I2C
1_SC
L/
QSPI
0_M
ISO1/
PW
M
0_C
H
4/
PW
M
1_C
H
4/
PW
M
0_BR
AKE0
9
PB.
0/
EAD
C
0_C
H
0/
OPA0_P/
EBI
_AD
R
9/
U
AR
T
2_R
XD
/SPI
0_I
2SM
C
LK/
I2C
1_SD
A/
QSPI
0_M
OSI
1/
PW
M
0_C
H
5/
P
W
M
1_C
H
5/
PW
M
0_BR
AKE1
10
VSS
11
VD
D
12
PA.
11/
AC
M
P0_P0/
EBI
_nR
D
/U
SC
I0_C
LK/
BPW
M
0_C
H
0/
T
M
0_EXT
13
PA.
10/
AC
M
P1_P0/
EBI
_nW
R
/U
SC
I0_D
AT
0/
BPW
M
0_C
H
1/
T
M
1_EXT
/D
AC
0_ST
14
PA.
9/
EBI
_M
C
LK/
U
SC
I0_D
AT
1/
U
AR
T
1_T
XD
/BPW
M
0_C
H
2/
T
M
2_EXT
15
PA.
8/
EBI
_ALE/
U
SC
I0_C
T
L1/
U
AR
T
1_R
XD
/BPW
M
0_C
H
3/
T
M
3_EXT
/I
N
T
4
16
NC
17
PD
.12/
EBI
_nC
S0/
U
AR
T
2_R
XD
/BPW
M
0_C
H
5/
C
LKO/
EAD
C
0_ST
/I
N
T
5
18
PD
.11/
EBI
_nC
S1/
U
AR
T
1_T
XD
19
PD
.10/
EBI
_nC
S2/
U
AR
T
1_R
XD
20
NC
21
NC
22
NC
23
NC
24
NC
25
NC
26
NC
27
PF
.7/
EBI
_AD
R
18/
SC
0_D
AT
/SPI
0_M
ISO
28
PF
.6/
EBI
_AD
R
19/
SC
0_C
LK/
SPI
0_M
OSI
/EBI
_nC
S0/
T
AM
PER
0
29
VBAT
30
PF
.5/
U
AR
T
2_R
XD
/U
AR
T
2_nC
T
S/
PW
M
0_C
H
0/
BPW
M
0_C
H
4/
X32_I
N
/EAD
C
0_ST
31
PF
.4/
U
AR
T
2_T
XD
/U
AR
T
2_nR
T
S/
PW
M
0_C
H
1/
BPW
M
0_C
H
5/
X32_OU
T
32
NC
33
NC
34
NC
35
NC
36
PF.3/EBI_nCS0/UART0_TXD/I2C0_SCL/XT1_IN/BPWM1_CH0
37
PF.2/EBI_nCS1/UART0_RXD/I2C0_SDA/QSPI0_CLK/XT1_OUT/BPWM1_CH1
38
NC
39
NC
40
PE.8/EBI_ADR10/USCI1_CTL1/UART2_TXD/PWM0_CH0/PWM0_BRAKE0
41
PE.9/EBI_ADR11/USCI1_CTL0/UART2_RXD/PWM0_CH1/PWM0_BRAKE1
42
PE.10/EBI_ADR12/USCI1_DAT0/PWM0_CH2/PWM1_BRAKE0
43
PE.11/EBI_ADR13/USCI1_DAT1/UART1_nCTS/PWM0_CH3/PWM1_BRAKE1
44
PE.12/EBI_ADR14/USCI1_CLK/UART1_nRTS/PWM0_CH4
45
PE.13/EBI_ADR15/I2C0_SCL/UART1_TXD/PWM0_CH5/PWM1_CH0/BPWM1_CH5
46
PC.8/EBI_ADR16/I2C0_SDA/UART1_RXD/PWM1_CH1/BPWM1_CH4
47
PC.7/EBI_AD9/UART0_nCTS/I2C1_SMBAL/PWM1_CH2/BPWM1_CH0/TM0/INT3
48
PC.6/EBI_AD8/UART0_nRTS/I2C1_SMBSUS/PWM1_CH3/BPWM1_CH1/TM1/INT2
49
PA.7/EBI_AD7/UART0_TXD/I2C1_SCL/PWM1_CH4/BPWM1_CH2/ACMP0_WLAT/TM2/INT1
50
PA.6/EBI_AD6/UART0_RXD/I2C1_SDA/PWM1_CH5/BPWM1_CH3/ACMP1_WLAT/TM3/INT0
51
VSS
52
VDD
53
PD.15/PSIO0_CH7/PWM0_CH5/TM3/INT1
54
PA.5/QSPI0_MISO1/UART0_nCTS/UART0_TXD/I2C0_SCL/BPWM0_CH5/PWM0_CH0
55
PA.4/QSPI0_MOSI1/SPI0_I2SMCLK/SC0_nCD/UART0_nRTS/UART0_RXD/I2C0_SDA/USCI2_CTL1/BPWM0_CH4/PWM0_CH1
56
PA.3/QSPI0_SS/SPI0_SS/SC0_PWR/I2C0_SMBAL/UART1_TXD/I2C1_SCL/PSIO0_CH4/USCI2_CTL0/BPWM0_CH3/PWM0_CH2/CLKO/PWM1_BRAKE1
57
PA.2/QSPI0_CLK/SPI0_CLK/SC0_RST/I2C0_SMBSUS/UART1_RXD/I2C1_SDA/PSIO0_CH5/USCI2_CLK/BPWM0_CH2/PWM0_CH3
58
PA.1/QSPI0_MISO0/SPI0_MISO/SC0_DAT/UART0_TXD/UART1_nCTS/PSIO0_CH6/USCI2_DAT0/BPWM0_CH1/PWM0_CH4
59
PA.0/QSPI0_MOSI0/SPI0_MOSI/SC0_CLK/UART0_RXD/UART1_nRTS/PSIO0_CH7/USCI2_DAT1/BPWM0_CH0/PWM0_CH5/DAC0_ST
60
VDDIO
61
PE.14/EBI_AD8/UART2_TXD/PSIO0_CH0
62
PE.15/EBI_AD9/UART2_RXD/PSIO0_CH1
63
nRESET
64
PF
.0/
IC
E_D
AT
65
PF
.1/
IC
E_C
LK
66
PD
.9/
EBI
_AD
7/
U
AR
T
2_nC
T
S/
PSI
O0_C
H
2
67
PD
.8/
EBI
_AD
6/
U
AR
T
2_nR
T
S/
PSI
O0_C
H
3
68
PC
.5/
EBI
_AD
5/
QSPI
0_M
ISO1/
U
AR
T
2_T
XD
/I
2C
1_SC
L/
PW
M
1_C
H
0/
PSI
O0_C
H
0
69
PC
.4/
EBI
_AD
4/
QSPI
0_M
OSI
1/
U
AR
T
2_R
XD
/I
2C
1_SD
A/
PW
M
1_C
H
1/
U
SC
I2_C
T
L1/
PSI
O0_C
H
1
70
PC
.3/
EBI
_AD
3/
QSPI
0_SS/
U
AR
T
2_nR
T
S/
I2C
0_SM
BAL/
PW
M
1_C
H
2/
U
SC
I2_C
T
L0/
PSI
O0_C
H
2
71
PC
.2/
EBI
_AD
2/
QSPI
0_C
LK/
U
AR
T
2_nC
T
S/
I2C
0_SM
BSU
S/
PW
M
1_C
H
3/
U
SC
I2_C
LK/
PSI
O0_C
H
3
72
PC
.1/
EBI
_AD
1/
QSPI
0_M
ISO0/
U
AR
T
2_T
XD
/I
2C
0_SC
L/
PW
M
1_C
H
4/
U
SC
I2_D
AT
0/
AC
M
P0_O
73
PC
.0/
EBI
_AD
0/
QSPI
0_M
OSI
0/
U
AR
T
2_R
XD
/I
2C
0_SD
A/
PW
M
1_C
H
5/
U
SC
I2_D
AT
1/
AC
M
P1_O
74
VSS
75
VD
D
76
NC
77
NC
78
NC
79
NC
80
NC
81
NC
82
NC
83
PD
.7/
U
AR
T
1_T
XD
/I
2C
0_SC
L/
U
SC
I1_C
LK/
PSI
O0_C
H
4
84
PD
.6/
U
AR
T
1_R
XD
/I
2C
0_SD
A/
U
SC
I1_D
AT
1/
PSI
O0_C
H
5
85
PD
.5/
I2C
1_SC
L/
U
SC
I1_D
AT
0/
PSI
O0_C
H
6
86
PD
.4/
U
SC
I0_C
T
L0/
I2C
1_SD
A/
U
SC
I1_C
T
L1/
PSI
O0_C
H
7
87
PD
.3/
EBI
_AD
10/
U
SC
I0_C
T
L1/
SPI
0_SS/
U
SC
I1_C
T
L0/
U
AR
T
0_T
XD
88
PD
.2/
EBI
_AD
11/
U
SC
I0_D
AT
1/
SPI
0_C
LK/
U
AR
T
0_R
XD
89
PD
.1/
EBI
_AD
12/
U
SC
I0_D
AT
0/
SPI
0_M
ISO
90
PD
.0/
EBI
_AD
13/
U
SC
I0_C
LK/
SPI
0_M
OSI
/T
M
2
91
PD
.13/
EBI
_AD
10/
SPI
0_I
2SM
C
LK/
U
SC
I2_C
T
L0
92
U
SB_VBU
S
93
U
SB_D
-
94
U
SB_D
+
95
U
SB_VD
D
33_C
AP
96
PE.7/PSIO0_CH0/PWM0_CH0/BPWM0_CH5
97
PE.6/SC0_nCD/USCI0_CTL0/PSIO0_CH1/PWM0_CH1/BPWM0_CH4
98
PE.5/EBI_nRD/SC0_PWR/USCI0_CTL1/PSIO0_CH2/PWM0_CH2/BPWM0_CH3
99
PE.4/EBI_nWR/SC0_RST/USCI0_DAT1/PSIO0_CH3/PWM0_CH3/BPWM0_CH2
100
PE.3/EBI_MCLK/SC0_DAT/USCI0_DAT0/PWM0_CH4/BPWM0_CH1
101
PE.2/EBI_ALE/SC0_CLK/USCI0_CLK/USCI2_CTL0/PWM0_CH5/BPWM0_CH0
102
NC
103
NC
104
PE.1/EBI_AD10/QSPI0_MISO0/I2C1_SCL/USCI2_DAT1
105
PE.0/EBI_AD11/QSPI0_MOSI0/I2C1_SDA/USCI2_DAT0
106
NC
107
NC
108
NC
109
NC
110
NC
111
VSS
112
LDO_CAP
113
VDD
114
PC.14/EBI_AD11/SPI0_I2SMCLK/USCI0_CTL0/QSPI0_CLK/USCI2_CLK/TM1
115
PB.15/EADC0_CH15/EBI_AD12/SPI0_SS/USCI0_CTL1/UART0_nCTS/PSIO0_CH0/PWM1_CH0/TM0_EXT/PWM0_BRAKE1
116
PB.14/EADC0_CH14/EBI_AD13/SPI0_CLK/USCI0_DAT1/UART0_nRTS/PSIO0_CH1/PWM1_CH1/TM1_EXT/CLKO
117
PB.13/EADC0_CH13/ACMP0_P3/ACMP1_P3/EBI_AD14/SPI0_MISO/USCI0_DAT0/UART0_TXD/PSIO0_CH2/PWM1_CH2/TM2_EXT
118
PB.12/EADC0_CH12/DAC0_OUT/ACMP0_P2/ACMP1_P2/EBI_AD15/SPI0_MOSI/USCI0_CLK/UART0_RXD/PSIO0_CH3/PWM1_CH3/TM3_EXT
119
AVDD
120
VREF
121
AVSS
122
PB.11/EADC0_CH11/EBI_ADR16/UART0_nCTS/I2C1_SCL/SPI0_I2SMCLK/BPWM1_CH0
123
PB.10/EADC0_CH10/EBI_ADR17/USCI1_CTL0/UART0_nRTS/I2C1_SDA/BPWM1_CH1
124
PB.9/EADC0_CH9/EBI_ADR18/USCI1_CTL1/UART0_TXD/UART1_nCTS/I2C1_SMBAL/BPWM1_CH2
125
PB.8/EADC0_CH8/EBI_ADR19/USCI1_CLK/UART0_RXD/UART1_nRTS/I2C1_SMBSUS/BPWM1_CH3
126
PB.7/EADC0_CH7/EBI_nWRL/USCI1_DAT0/UART1_TXD/EBI_nCS0/BPWM1_CH4/PWM1_BRAKE0/PWM1_CH4/INT5/ACMP0_O
127
PB.6/EADC0_CH6/EBI_nWRH/USCI1_DAT1/UART1_RXD/EBI_nCS1/BPWM1_CH5/PWM1_BRAKE1/PWM1_CH5/INT4/ACMP1_O
128
C21
0.1u
C0603
VDD_3
P21
P22
P17
P18
P25
P24
P23
P19
P20
P30
VBAT
P29
P28
P26
P27
P32
PF4_X32_OUT
P31
PF5_X32_IN
VDD_4
P2
P1
P6
P5
P4
P3
P7
P8
P9
P11
P10
P12
VDD_3
P13
P14
P15
P16
AMMETER
NC
1
2
R16
0
1
2
D1
SS24A
USB Device
L5
FERRITE BEAD
C15
1u
C0603
P98
P97
P100
P99
VDD
VDD_MCU
UP1
AMS1117_3.3v
IN
3
GN
D
1
OU
T
2
OU
T
4
NU1_3VCC
CT4
10uF/10V
TANT-A
1
2
P104
P103
P102
P101
P108
P107
P106
P105
P110
P109
P112
P111
NU1_5VCC
P116
P115
P114
P113
ADAVSS
P120
P119
P118
P117
P128
P127
P126
P125
P124
P123
P122
P121
P61
P62
P63
P64
P53
P54
P55
P56
P57
P58
P59
P60
P45
P46
P47
P48
P49
P50
P51
P52
P37
P38
P39
P40
P41
P42
P43
P44
P33
P34
P35
P36
PF2_XT1_OUT
PF3_XT1_IN
R2
0
R5
0
MCUVCC_DIODE
C8
20p
X1
32MHz 49S SMD
XTAL\LP\SMD
P67
P66
P65
C2
20p
HXT & LXT Crystal
P69
P68
X2
SMD 32.768K X3215
9HT9
P71
P70
PF4_X32_OUT
PF5_X32_IN
R1
0
R4
0
P77
P76
P75
P74
P73
P72
C1
20p
P78
C7
20p
P84
P83
P82
P81
P80
P79
P85
P90
P89
P88
P87
P86
H1
H-3.4X6
1
H2
H-3.4X6
1
P92
P91
H4
H-3.4X6
1
H3
H-3.4X6
1
Mounting Hole
P96
P95
P94
P93
JP2
NC
1
2
3
4
JP1
NC
1
2
3
4
C12
0.1u
C14
0.1u
VDD_MCU
AVDD
P26
P27
P28
P29
P30
P31
P32
C11
0.1u
VREF
P18
P19
P20
P21
P22
P23
P24
P25
VREF1
NC
1
2
P10
P11
P12
P13
P14
P15
P16
P17
CT2
10uF/10V
1
2
CT3
10uF/10V
1
2
P2
P3
P4
P5
P6
P7
P8
P9
L2
FERRITE BEAD
P1
L4
FERRITE BEAD
Power
ADAVSS
C13
0.01u
LED
HJ2
micro USB 5pin
MICRO_USB_B
VBUS
1
D-
2
D+
3
GND
5
ID
4
Shield
6
Shield
7
Shield
8
Shield
9
Shield
10
Shield
11
USB_VBUS
D+
D-
VDD
L1
FERRITE BEAD
C16
1u
C0603
R15
0
VDDIO
NC
1
2
GND
PC6_LoRa_DIO0
PC7_LoRa_DIO1
PF2_XT1_OUT
VDD_MCU
C17
0.1u
PA2_NU3_D13/CLK
PD15_LoRa_TCXO_EN
VDDIO
PA0_NU3_D11/MOSI
VDDIO
PA1_NU3_D12/MISO
PA3_NU3_D10/SS
VDD_MCU
TICERST
PB0_NU2_A4/SDA/RX
PF3_XT1_IN
ICE5V
PB6_NU2_A1
PB3_NU3_D1/TX
PB4_NU2_A3
PB5_NU2_A2
PB1_NU2_A5/SCL/TX
PB2_NU3_D0/RX
PA11_NU5_CLK
PA8_NU5_SS
PA9_NU5_MISO
PA10_NU5_MOSI
USB_VDD33_CAP
PB14_LED_R
D+
D-
C10
0.1u
USB_D-
USB_D+
R9
27
R11
27
CT1
1uF/16V
1
2
USB_VBUS
L3
FERRITE BEAD
L0603
J2
micro USB 5pin
MICRO_USB_AB
VBUS
1
D-
2
D+
3
GND
5
ID
4
Shield
6
Shield
7
Shield
8
Shield
9
Shield
10
Shield
11
PF4_X32_OUT
PF5_X32_IN
VBAT
PF6_LoRa_nRESET
USB_VBUS
P42
P37
PF3_XT1_IN
P38
PF2_XT1_OUT
P45
P44
P43
P39
P40
P41
P36
P35
P48
P46
P47
C6
1u
C0603
P33
P34
LDO_CAP
P49
P57
P52
P51
P50
P59
P60
P54
P53
VDD_1
P58
P63
P62
P64
nRESET
P56
P55
P61
VDDIO
VDD_2
VDD_1
P65 - P96
NU1_3VCC
NU1_5VCC
P85
P86
P81
P82
P89
P88
P87
P83
P84
P94
P93
P92
P90
P91
R12
0(NC)
P67
P66
PF1_ICE_CLK
P65
PF0_ICE_DAT
P96
USB_VDD33_CAP
P95
P72
P71
P70
P69
P68
P77
P76
VDD_4
P75
P74
P73
P80
P79
P78
