Data Sheet

Hangzhou Grom Technology Co.,Ltd.
Add: Room800,Building3#,Longtan Rd 16#,Cangqian street, Hangzhou City, China. 311121
Website：www.gromiot.com 8
Table 2-7. Pin instruction
Module
Pin No.
Pin No. Signal
Directio
n
Description
1 GND - Ground
2 15
PB01 I/O Digital I/O
EM4WU3 I
3 16 PB00 I/O Digital I/O
4 17 PA00 I/O Digital I/O
5 18
PA01 I/O Digital I/O
SWCLK I
6 19
PA02 I/O Digital I/O
SWDIO I/O
7 20
PA03 I/O Digital I/O
SWV O
TDO O
TRACEDATA
0
8 3.3V -
DC supply，1.8~3.6V
9 GND - Ground
10 21
PA04 I/O Digital I/O
TDI
TRACECLK
11 22
PA05 I/O Digital I/O
EM4WU0
12 23 PA06 I/O Digital I/O
13 GND - Ground
14 28 PD04 I/O Digital I/O
15 29 PD03 I/O Digital I/O
16 30
PD02 I/O Digital I/O
EM4WU9 I
17 1 PC00 I/O Digital I/O
18 GND - Ground
19 2 PC01 I/O Digital I/O
20 3 PC02 I/O Digital I/O
21 4 PC03 I/O Digital I/O
22 5 PC04 I/O Digital I/O
23 6
PC05 I/O Digital I/O
EM4WU7 I
24 3.3V -
DC supply，1.8~3.6V
25 9 RESETn I Reset Pin