UIS
7 |
P a g e
Pin
Name
Description
Direction
1
GND
Power Ground
I
2
AVDD
DC input(+2.0 ~3.6V)
I
3
Port 2.4/32.768 kHz XOSC
I/O
4
Port 2.3/32.768 kHz XOSC
I/O
5
P2_2
Port 2.2
I/O
6
P2_1
Port 2.1
I/O
7
P2_0
Port 2.0
I/O
8
P1_7
Port 1.7
I/O
9
P1_6
Port 1.6
I/O
10
VDD
DC input(+2.0 ~3.6V)
I
11
GND
Power Ground
I
12
P1_5
Port 1.5
I/O
13
P1_4
Port 1.4
I/O
14
P1_3
Port 1.3
I/O
15
P1_2
Port 1.2
I/O
16
P1_1
I/O
17
VDD
DC input(+2.0 ~3.6V)
I
18
P1_0
I/O
19
P0_7
Port 0.7
I/O
20
P0_6
Port 0.6
I/O
21
P0_5
Port 0.5
I/O
22
P0_4
Port 0.4
I/O
23
P0_3
Port 0.3
I/O
24
P0_2
Port 0.2
I/O
25
P0_1
Port 0.1
I/O
26
P0_0
Port 0.0
I/O
27
RESET_N
Reset, active-low
I
28
GND
Power Ground
I
29
GND
Power Ground
I
P2_4/XOSC3
2K_Q1
P2_3/XOSC3
2K_Q2
Port 1.1 – 20-mA drive
capability
Port 1.0 – 20-mA drive
capability