5 4 3 2 1

USB UART USB

U28
A1 B12
A2 GND GND B11 VBUS
A3 TX1+ RX1+ B10
A4 TX1- RX1- B9 U27
D VBUS VBUS VBUS VBUS D
CC1 A5 B8 A1 B12
D+ A6 CC1 SBU2 B7 D- D16 A2 GND GND B11
D- A7 D+ D1- B6 D+ U15 CH340K A3 TX1+ RX1+ B10
A8 D- D1+ B5 DP 1 11 1N4148 A4 TX1- RX1- B9
SBU1 CC2 D+ GND VBUS VBUS VBUS VBUS
A9 B4 DM 2 IO0 A5 B8 RST/EN
VBUS VBUS VBUS VBUS D- CC1 SBU2
A10 B3 3 10 U0TXD A6 B7 U0RXD
A11 RX2- TX2- B2 DTR 4 GND V3 9 U0TXD U0RXD A7 D+ D1- B6 U0TXD
A12 RX2+ TX2+ B1 5 DTR RXD 8 U0RXD RST/EN A8 D- D1+ B5 IO0
GND GND CTS TXD 7 A9 SBU1 CC2 B4

GND
GND
VBUS VBUS

NC1
NC2
VCC 6 RTS A10 VBUS VBUS B3
RTS A11 RX2- TX2- B2
母公
C10 C11
Type-C ESSOP-10 A12 RX2+ TX2+ B1
25
26
27
28
TYPE-C-24-SMD-M 100nF 10uF GND GND

GND
GND
GND
GND
Type-C 公公

25
26
27
28
TYPE-C-24-SMD-P

CC1 R8 5.1K U4 UMH3N

RTS 1 6 RST/EN
D+ R4 10R DP 1 6
C C

DTR 2 5 RTS
2 5
D- R5 10R DM
IO0 3 4 DTR
3 4
ED1

ED2
LESD5D5.0CT1G

LESD5D5.0CT1G

CONNECTOR KEY LED

B B
VBUS R11 390R 1%
U11
P3
6 U0RXD PH-2-WO LED_G2
6 5 U0TXD 1
5 4 IO0 GND
4 3 RST/EN RED
3 2 IO0 2
2 VBUS VCC
1
1 MIC_4015
GND
6-Public seat
6PIN_2.0

A A

Title
T85_V2.1

Size Document Number Rev

B UART V2.1

Date: Thursday, March 25, 2021 Sheet 1 of 1

5 4 3 2 1