1
1
2
2
3
3
4
4
D D
C C
B B
A A
SWXT-QFP48-181C9B2
A7/COM3/FUNCTION
6
A6/CP0P/COM2/FUNCTION
7
A5/CP0N/COM1/FUNCTION
8
A4/COM0/FUNCTION
9
A3/SWDIO/FUNCTION
10
A2/SWCLK/FUNCTION
11
A1/FUNCTION
12
A0/WAKEUP_IO/FUNCTION
13
C1/XI/FUNCTION
15
XO
14
VSS33
16
VDD33
17
AVDD0
23
ADC0_REFP
24
AVSS0
25
ADC1_REFP
31
E4/ADC0_CH0/FUNCTION
18
D3/SEG17/FUNCTION
28
D2/SEG16/FUNCTION
29
AVSS1
30
AVDD1
32
D1/ADC1_CH4_N/SEG15/FUNCTION
33
D0/ADC1_CH4_P/SEG14/FUNCTION
34
C5/MISO1/ADC1_CH1_N/SEG11/FUNCTION
35
C4/SS_N1/ADC1_CH1_P/SEG10/FUNCTION
36
C3/ADC1_CH3_N/FUNCTION
37
C2/ADC1_CH3_P/FUNCTION
38
B9/SEG9/FUNCTION
39
B8/SEG8/FUNCTION
40
B7/SEG7/FUNCTION
41
B6/SEG6/FUNCTION
42
B5/SEG5/FUNCTION
43
B4/SEG4/FUNCTION
44
B3/CP1P/SEG3/FUNCTION
45
B2/SEG2/CP1N/FUNCTION
46
B1/SEG1/FUNCTION
47
B0/SEG0/FUNCTION/ISP
48
RESETn
1
A11/SCLK0/SEG21/FUNCTION
2
A10/MOSI0/SEG20/FUNCTION
3
A9/MISO0/SEG19/FUNCTION
4
A8/SS_N0/SEG18/FUNCTION
5
A15/SCLK0/ADC0_CH1/FUNCTION
19
A14/CP2P/MOSI0/ADC0_CH2/FUNCTION
20
A13/CP2N/MISO0/ADC0_CH3/FUNCTION
21
A12/SS_N0/ADC0_CH4/FUNCTION
22
C7/SCLK1/ADC0_CH5/ADC1_CH0_N/SEG13/FUNCTION
26
C6/MOSI1/ADC0_CH6/ADC1_CH0_P/SEG12/FUNCTION
27
U2
SWM181CBT6-50-AA-00
1 2
Y1
24MHz
RSTn
C5
100nF
R4
10K
3.3V
GND
C6
22pF
C4
22pF
GND
XO
XI
C3
100nF
GND
3.3V
Vin
3
1
Vout
2
GND
U1
AMS1117_3.3
2
3
1
S1
SW_SPDT
C1
100nF
C2
100nF
R2
2K
3.3V
GND
5V
F1
500mA
D-
D+
GND
5
VBUS
1
D-
2
D+
3
ID
4
SH3
SH1
SH5
SH2
SH4
SH6
USB1
MICRO-USB-BF-5P
TP2
TP1
TP3
D1
RED LED
EC2
22uF/16V 6.3x5.3
EC1
22uF/16V 6.3x5.3
VCC
1
2
3
4
P1
Header4
3.3V5V
GND
R1
10K
R3
2K
3.3V
GND
3.3V
GND
SWDIO
SWCLK
D2
RED LED
RX
TX
LED
KEY
KEY
LED
公司：广东华芯微特
地址：广东省佛山市南海区桂城街道瀚天科技城 A区6号楼1305单元
型号
LQFP48
SWXT-QFP48-181C9B2
V01
绘制
校对
Arnold_fu
NO.2
D+
D-
1 2Y2
12MHz/NC
C8
22pF/NC
C9
22pF/NC
C7
100nF
GND
GND
GND
3.3V
3.3V
RX
TX
RSTn
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
XO
XI
GND
3.3V
E4
A12
A13
A14
A15
3.3V
ADC0_REF GND
C6
C7
D0
D1
D2
D3
GND
3.3V
C2
C3
C4
C5
B0
B1
B2
B3
B4
B5
B6
B7
B8
B9
ADC1_REF
1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 16
17 18
19 20
21 22
23 24
JP2
1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 16
17 18
19 20
21 22
23 24
JP1
RSTn
A0
A1A2
A3A4
A5A6
A7A8
A9A10
A11
XO
XI GND
3.3V E4
A12A13
A14A15
3.3V ADC0_REF
GND
C6
C7
D0 D1
D2
D3
GND
C2 C3
C4 C5
B0 B1
B2 B3
B4 B5
B6 B7
B9
ADC1_REF
B8
C10
100nF
C11
100nF
SYNWIT_LOGO1
Synwit_logo SYNWIT_CODE1
Synwit_QR CODE
SWDIO
SWCLK
1
2
3
4
P2
Header4
1
2
3
4
P5
Header4
1
2
3
4
P6
Header4
1
2
3
4
P7
Header4
S3
RESET
S2
KEY
晶振电路复位电路串口通信
USB电源
预留外接电源/地排针
烧录口
预留测试用按键，LED灯
引脚外接排针
主控IC
2022.09.05
TXD
2
RXD
3
V3
4
UD+
5
UD-
6
GND
1
XI
7
XO
8
CTS#
9
DSR#
10
RI#
11
DCD#
12
DTR#
13
RTS#
14
R232
15
VCC
16
U3
CH340C
PIC101
PIC102
COC1
PIC201
PIC202
COC2
PIC301
PIC302
COC3
PIC401
PIC402
COC4
PIC501
PIC502
COC5
PIC601
PIC602
COC6
PIC701
PIC702
COC7
PIC801
PIC802
COC8
PIC901
PIC902
COC9
PIC1001
PIC1002
COC10
PIC1101
PIC1102
COC11
PID101
PID102
COD1
PID201
PID202
COD2
PIEC101
PIEC102
COEC1
PIEC201
PIEC202
COEC2
PIF101
PIF102
COF1
PIJP101
PIJP102
PIJP103
PIJP104
PIJP105
PIJP106
PIJP107
PIJP108
PIJP109
PIJP1010
PIJP1011
PIJP1012
PIJP1013
PIJP1014
PIJP1015
PIJP1016
PIJP1017
PIJP1018
PIJP1019
PIJP1020
PIJP1021
PIJP1022
PIJP1023
PIJP1024
COJP1
PIJP201
PIJP202
PIJP203
PIJP204
PIJP205
PIJP206
PIJP207
PIJP208
PIJP209
PIJP2010
PIJP2011
PIJP2012
PIJP2013
PIJP2014
PIJP2015
PIJP2016
PIJP2017
PIJP2018
PIJP2019
PIJP2020
PIJP2021
PIJP2022
PIJP2023
PIJP2024
COJP2
PIP101
PIP102
PIP103
PIP104
COP1
PIP201
PIP202
PIP203
PIP204
COP2
PIP501
PIP502
PIP503
PIP504
COP5
PIP601
PIP602
PIP603
PIP604
COP6
PIP701
PIP702
PIP703
PIP704
COP7
PIR101
PIR102
COR1
PIR201
PIR202
COR2
PIR301
PIR302
COR3
PIR401
PIR402
COR4
PIS101
PIS102
PIS103
COS1
PIS201
PIS202
PIS203
PIS204
COS2
PIS301
PIS302
PIS303
PIS304
COS3
COSYNWIT0CODE1
COSYNWIT0LOGO1
PITP101
COTP1
PITP201
COTP2
PITP301
COTP3
PIU101
PIU102
PIU103
COU1
PIU201
PIU202
PIU203
PIU204
PIU205
PIU206
PIU207
PIU208
PIU209
PIU2010
PIU2011
PIU2012
PIU2013
PIU2014
PIU2015
PIU2016
PIU2017
PIU2018
PIU2019
PIU2020
PIU2021
PIU2022
PIU2023
PIU2024
PIU2025
PIU2026
PIU2027
PIU2028
PIU2029
PIU2030
PIU2031
PIU2032
PIU2033
PIU2034
PIU2035
PIU2036
PIU2037
PIU2038
PIU2039
PIU2040
PIU2041
PIU2042
PIU2043
PIU2044
PIU2045
PIU2046
PIU2047
PIU2048
COU2
PIU301
PIU302
PIU303
PIU304
PIU305
PIU306
PIU307
PIU308
PIU309
PIU3010
PIU3011
PIU3012
PIU3013
PIU3014
PIU3015
PIU3016
COU3
PIUSB101
PIUSB102
PIUSB103
PIUSB104
PIUSB105
PIUSB10SH1
PIUSB10SH2
PIUSB10SH3
PIUSB10SH4
PIUSB10SH5
PIUSB10SH6
COUSB1
PIY101
PIY102
COY1
PIY201
PIY202
COY2
PIC202
PIC302
PIC702
PIC1002
PIC1102
PIEC201
PIJP1017
PIJP1023
PIP201
PIP202
PIP203
PIP204
PIP701
PIR101
PIR202
PIR402
PIU102
PIU2017
PIU2023
PIU2032
PIU304
PIU3016
NL303V
PIC102
PIEC101
PIF102
PIP101
PIP102
PIP103
PIP104
PIU103
PIJP1013
PIU2013
NLA0
PIJP1012
PIU2012
NLA1
PIJP1011
PIP703
PIU2011
NLA2
NLSWCLK
PIJP1010
PIP704
PIU2010
NLA3
NLSWDIO
PIJP109
PIU209
NLA4
PIJP108
PIU208
NLA5
PIJP107
PIU207
NLA6
PIJP106
PIU206
NLA7
PIJP105
PIU205
NLA8
PIJP104
PIU204
NLA9
PIJP103
PIU203
NLA10
PIJP102
PIU202
NLA11
PIJP1022
PIU2022
NLA12
PIJP1021
PIU2021
NLA13
PIJP1020
PIU2020
NLA14
PIJP1019
PIU2019
NLA15
PIJP1024
PIU2024
NLADC00REF
PIJP2018
PIU2031
NLADC10REF
PIJP201
PIU2048
NLB0
PIJP202
PIU2047
NLB1
PIJP203
PIU2046
NLB2
PIJP204
PIU2045
NLB3
PIJP205
PIU2044
NLB4
PIJP206
PIU2043
NLB5
PIJP207
PIU2042
NLB6
PIJP208
PIU2041
NLB7
PIJP209
PIU2040
NLB8
PIJP2010
PIU2039
NLB9
PIJP2011
PIU2038
NLC2
PIJP2012
PIU2037
NLC3
PIJP2013
PIU2036
NLC4
PIJP2014
PIU2035
NLC5
PIJP2022
PIU2027
NLC6
PIJP2023
PIU2026
NLC7
PIJP2015
PIU2034
NLD0
PIJP2016
PIU2033
NLD1
PIJP2020
PIU2029
NLD2
PIJP2021
PIU2028
NLD3
PIU305
PIUSB103
NLD0
PIU306
PIUSB102
NLD0
PIJP1018
PIU2018
NLE4
PIC101
PIC201
PIC301
PIC401
PIC501
PIC601
PIC701
PIC801
PIC901
PIC1001
PIC1101
PID102
PID202
PIEC102
PIEC202
PIJP1016
PIJP2019
PIJP2024
PIP501
PIP502
PIP503
PIP504
PIP702
PIS202
PIS203
PIS302
PIS303
PITP301
PIU101
PIU2016
PIU2025
PIU2030
PIU301
PIUSB105
PIUSB10SH1
PIUSB10SH2
PIUSB10SH3
PIUSB10SH4
PIUSB10SH5
PIUSB10SH6
NLGND
PIP604
PIR102
PIS201
PIS204
NLKEY
PIP603
PIR302
NLLED
PIC802
PIU307
PIY201
PIC902
PIU308
PIY202
PID101
PIR201
PID201
PIR301
PIF101
PIS101
PIJP2017
PIS103
PITP201
PIUSB104
PIU309
PIU3010
PIU3011
PIU3012
PIU3013
PIU3014
PIU3015
PIC502
PIJP101
PIR401
PIS301
PIS304
PIU201
NLRSTn
PIP601
PIU303
NLRX
PIP602
PIU302
NLTX
PIS102
PITP101
PIUSB101
NLVCC
PIC602
PIJP1015
PIU2015
PIY101
NLXI
PIC402
PIJP1014
PIU2014
PIY102
NLXO
