Back to browse
CH32V203GxUx
NanjingQinheng WCH RISC-V MCU, 32-64KB flash, 10-20KB RAM, 144 MHz, 2.4-3.6V, 24 GPIO, ADC, OpAmp, CAN, USB, WQFN-28
Schematic Symbol
Pin Configuration (29 pins)
| Pin | Name | Type |
|---|---|---|
| 1 | BOOT0/PB8 | bidirectional |
| 2 | OSC_IN/PD0 | bidirectional |
| 3 | OSC_OUT/PD1 | bidirectional |
| 4 | ~{RST} | input |
| 5 | VDDA | power_in |
| 6 | PA0 | bidirectional |
| 7 | PA1 | bidirectional |
| 8 | PA2 | bidirectional |
| 9 | PA3 | bidirectional |
| 10 | PA4 | bidirectional |
| 11 | PA5 | bidirectional |
| 12 | PA6 | bidirectional |
| 13 | PA7 | bidirectional |
| 14 | PB0 | bidirectional |
| 15 | PB1 | bidirectional |
| 16 | VSS | power_in |
| 17 | VDD | power_in |
| 18 | PA9 | bidirectional |
| 19 | PA10/PA11/USB_D- | bidirectional |
| 20 | PA12/USB_D+ | bidirectional |
| 21 | PA13/SWDIO | bidirectional |
| 22 | PA14/SWCLK | bidirectional |
| 23 | PA15 | bidirectional |
| 24 | PB3 | bidirectional |
| 25 | PB4 | bidirectional |
| 26 | PB5 | bidirectional |
| 27 | PB6 | bidirectional |
| 28 | PB7 | bidirectional |
| 29 | VSS | passive |
Footprint
ConfirmedPackage_DFN_QFN/WQFN-28-1EP_4x4mm_P0.4mm_EP2.7x2.7mm
Pad Layout
—
—
—
—
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
Pads (33)
| 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 |
| 18 | smd |
| 19 | smd |
| 20 | smd |
| 21 | smd |
| 22 | smd |
| 23 | smd |
| 24 | smd |
| 25 | smd |
| 26 | smd |
| 27 | smd |
| 28 | smd |
| 29 | smd |