SE868Kx-Ax Family Product User Guide
1VV0301201 Rev. 5
Page 38 of 83
2021-07-15
Not Subject to NDA
SE868-A Module Pinout Tables
9.2.1.
SE868-A Pinout Table
Pin
Signal
Type
Description
Notes
1
Ground
GND
Ground
2
Reserved
RES
Reserved. Do not connect
3
Reserved
RES
Reserved. Do not connect
4
Reserved
RES
Reserved. Do not connect
5
No Connection
NC
Not connected
6
Ground
GND
Ground
7
Ground
GND
Ground
8
No Connection
NC
Not connected
9
Ground
GND
Ground
10
TX0
O
Serial_Output_UART0
11
RX0
I
Serial_Input_UART0
12
HRST_B
I
System Reset
–
Active Low
13
FORCE_ON
I
Force full-power mode
3
14
No Connection
NC
Not connected
15
No Connection
NC
Not connected
16
No Connection
NC
Not connected
17
PPS
O
Pulse Per Second signal
18
Reserved
RES
Reserved. Do not connect
19
Reserved
RES
Reserved. Do not connect
20
Reserved
RES
Reserved. Do not connect
21
Ground
GND
Ground
22
I2C Data / TX1
I/O
I2C Data / UART1_Tx
23
I2C Clock / RX1
I/O
I2C Clock / UART1_Rx
24
No Connection
NC
Not connected
25
VCC
PWR
Main power supply
26
No Connection
NC
Not connected
27
No Connection
NC
Not connected
28
DRI
O
Data Ready Indicator
29
No Connection
NC
Not connected
30
No Connection
NC
Not connected
31
Ground
GND
Ground
32
VBATT
PWR
Backup Power supply
Note 3: Force-On is not implemented in the MT3337
Table 17: SE868-A Pinout Table