Chengdu Ebyte Electronic Technology Co., Ltd.
EBT3002 User Manual
Copyright ©2012–2023
，
Chengdu Ebyte Electronic Technology Co., Ltd.
3.4 Hardware reference design
3.4.1 Typical application hardware connection
EBT3002
最小系统参考电路
VBAT6RESERVED7OSC32IN8OSC32OUT9
OSC_IN12OSC_OUT13NRST14TXD615RXD616TXD717RXD718VSSA19VDDA22RESERVED23RESERVED24TXD225
RXD2
26
VSS_4
27
VDD_4
28
RESERVED
29
RESERVED
30
RESERVED
31
RESERVED
32
TXD8
33
RXD8
34
RESERVED
35
RESERVED
36
BOOT1
37
TXD3
47
RXD3
48
VSS_1
49
VIO_1
50
RS485_EN-451RS485_EN-352RS485_EN-253RS485_EN-154
RXP63RXN64TXP65TXN66
Reload67TXD168RXD169
USB1DM70USB1DP71
SWDIO72VSS_274
VDD_275
SWCLK
76
RESERVED
77
TXD4
78
RXD4
79
TXD5
80
RXD5
83
L-LED8
89
RESERVED
90
RESERVED
91
USB2DM
92
USB2DP
93
BOOT0
94
RESERVED
95
RESERVED
96
VSS_3
99
VIO_3
100
WDT1RESERVED2RESERVED3RESERVED4RESERVED5VSS_510
VDD_511
VREF-21
RESERVED
38
D-LED8
39
D-LED7
40
D-LED6
41
D-LED5
42
D-LED4
43
D-LED3
44
D-LED2
45
D-LED1
46
NC73RS485_EN-855RS485_EN-756RS485_EN-657RS485_EN-558RESERVED59RESERVED60SPDLED61LINKLED62
L-LED1
81
L-LED2
82
L-LED3
84
L-LED4
85
L-LED5
86
L-LED6
87
L-LED7
88
RESERVED
97
RESERVED
98
@VDD power
@VIO power
@VDD&VBAT power
EBT3002100nF
GND
100nF
GND
100nF100nF
GND
100nF
GND
100nF
GND
100nF
GND
100nF
GND
GND
10K
GND
10K
BOOT1
10K
3.3V
100nF
GND
3.3VNRST3.3V3.3V3.3V
3.3V
3.3V
BOOT0
USB2DP
USB2DM
SWCLK
3.3VSWDIOUSB1DPUSB1DMOSC_IN_32KOSC_OUT_32KOSC_IN_8MOSC_OUT_8M
1
2
32.768KHz
12pF
12pF
GNDGND
1
1
2
2
3
3
4
4
8MHz10pF
GND
10pF
GND
TXD6RXD6TXD7RXD7TXD2
RXD2
TXD8
RXD8
RXD3
TXD3
TXD1RXD1
TXD4
RXD4
TXD5
RXD5
TXNTXPRXNRXP485EN-4LINKLEDSPDLED
3.3V
SYS-LED
L-LED1
L-LED2
L-LED3
L-LED4
L-LED5
L-LED6
L-LED7
L-LED8
485EN-3485EN-2485EN-1485EN-8485EN-7485EN-6485EN-5Reload
D-LED8
D-LED7
D-LED6
D-LED5
D-LED4
D-LED3
D-LED2
D-LED1
