CH343P

High-Speed USB serial converter, up to 6Mbps, 3.3V or 5V supply, UART, QFN-16

Schematic Symbol

Pin Configuration (17 pins)

Pin	Name	Type
2	GND	power_in
17	GND_EPAD	power_in
1	VIO	power_in
3	VDD5	power_in
4	TXD	output
5	RXD	input
6	V3_{OUT}	power_out
7	UD+	bidirectional
8	UD-	bidirectional
9	VBUS	input
10	~{ACT}	output
11	~{DCD}	input
12	~{DTR}	output
13	~{RTS}	output
14	~{DSR}	input
15	~{CTS}	input
16	~{RI}	input

Footprint

Confirmed

Package_DFN_QFN/WCH_QFN-16-1EP_3x3mm_P0.5mm_EP1.8x1.8mm

Pad Layout

—

—

—

—

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

Pads (21)

Number	Type
—	smd
—	smd
—	smd
—	smd
1	smd
2	smd
3	smd
4	smd
5	smd
6	smd
7	smd
8	smd
9	smd
10	smd
11	smd
12	smd
13	smd
14	smd
15	smd
16	smd
17	smd

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