Data Sheet

11
2.2 Pin Table
Pin No
Definition
Basic Description
Voltage
Type
1
NC
NC
---
Floating
2
NC
NC
---
Floating
3
WCI_SOUT
WCI interface serial output pin, for coexistence with
LTE, 802.15.4 radio, or other external radios
1.8V
O
4
WCI_SIN
WCI interface serial input pin, for coexistence with
LTE, 802.15.4 radio, or other external radios
1.8V
I
5
NC
NC
---
Floating
6
GND
Ground
---
---
7
SLP_CLK_IN
External Low Power Clock input (32.768KHz)
VDDIO
I
8
GND
Ground
---
---
9
GPIO[1]
GPIO Mode : GPIO[1].
VDDIO
I/O
10
GPIO[4]
GPIO Mode : GPIO[4].
VDDIO
I/O
11
GPIO[5]
GPIO Mode : GPIO[5].
VDDIO
I/O
12
GPIO[6]
GPIO Mode : GPIO[6].
VDDIO
I/O
13
GPIO[7]
GPIO Mode : GPIO[7].
VDDIO
I/O
14
GND
Ground
---
---
15
3V3
3.3V power voltage source input
3.3V
P
16
3V3
3.3V power voltage source input
3.3V
P
17
GND
Ground
---
---
18
Reserved
Reserved(Do not connect to anything)
---
Floating
19
NC
NC
---
Floating
20
NC
NC
---
Floating
21
1V8_IN
AVDD18 input
1.8V
P
22
VIO
1.8V/3.3V Digital I/O Power Supply
1.8V/3.3V
P
23
GND
Ground
---
---
24
GND
Ground
---
---
25
NC
NC
---
Floating
26
NC
NC
---
Floating
27
NC
NC
---
Floating
28
NC
NC
---
Floating
29
PDn
Full Power-down input pin (active low)
0 = full power-down mode
1 = normal mode
1.8V
I
30
SDIO_DATA_CMD
SDIO Command
VIO_SD
I/O
31
GND
Ground
---
---
32
SDIO_DATA_CLK
SDIO Clock input
VIO_SD
I
33
SDIO_DATA_0
SDIO Data line Bit[0]
VIO_SD
I/O
34
SDIO_DATA_1
SDIO Data line Bit[1]
VIO_SD
I/O
35
SDIO_DATA_2
SDIO Data line Bit[2]
VIO_SD
I/O
36
SDIO_DATA_3
SDIO Data line Bit[3]
VIO_SD
I/O
37
VIO_SD
1.8V/3.3V SDIO Power Supply
1.8V/3.3V
P
38
GND
Ground
---
---
39
USB_D+
USB 2.0 Serial Differential Data—Positive.
3.3V
I/O