Specifications

BL-M3881NT1 SPEC
石头世纪科技有限公司 内部文档 6
3.5 PIN Assignment
Pin #
Name
Type
Description
1
GND
P
Ground
2
ANT
RF
RF I/O port for WLAN ANT
3
GND
P
Ground
4~5
NC
/
--No Connection,keep Floating
6
GPIO6
I
HOST to wake-up Device, rising edge
trigger(GPIO6)
7-8
NC
/
--No Connection,keep Floating
9
VDD
P
Main power voltage input 2.3V-3.6V
10-11
NC
/
--No Connection,keep Floating
12
PWR_ON
I
Module chip Power enable, pull high when
module w ork,pull low disable power
13
NC
/
--No Connection,keep Floating
14
SDIO_DATA_2
I/O
SDIO data line 2
15
SDIO_DATA_3
I/O
SDIO data line 3t
16
SD_CMD
I/O
SDIO command line
17
SD_CLK
I/O
SDIO CLK line