LE940B6 HW User Guide
Rev. 2.02
Page 23 of 111
2020-01-10
3.
LE940B6 Module Connections
Pin-out
Table 6: LE940B6 Pin-out
Pad
Signal
I/O
Function
Type
Comment
USB HS 2.0 Communication Port
A18
USB_VBUS
AI
Power sense for the internal
USB transceiver
D19
USB_D+
I/O USB differential data (+)
F19
USB_D-
I/O USB differential data (-)
Asynchronous UART
AH19
C103/TXD
I
Serial data input (TXD) from
DTE
1.8V
AF19
C104/RXD
O
Serial data output (RXD) to
DTE
1.8V
AA18
C105/RTS
I
Input for Request To Send
signal (RTS) from DTE
1.8V
AK19
C106/CTS
O
Output for Clear To Send
signal (CTS) to DTE
1.8V
AG18
C107/DSR
O
Output for Data Set Ready
signal (DSR) to DTE
1.8V
AC18
C108/DTR
I
Input for Data Terminal
Ready signal (DTR) from
DTE
1.8V
AE18
C109/DCD
O
Output for Data Carrier
Detect signal (DCD) to DTE
1.8V
AJ18
C125/RING
O
Output for Ring Indicator
signal (RI) to DTE
1.8V
Asynchronous Auxiliary UART
AB19
TXD_AUX
O
Auxiliary UART (Tx Data to
DTE)
1.8V
Provided
to
Dekra
under
NDA
Distribution
is
Prohibited
except
for
Dekra
employees
with
a Need
to
know
