Smart Module Series
SA800U-WF Hardware Design
SA800U-WF_Hardware_Design 18 / 106
3.3. Pin Description
Table 3: I/O Parameters Definition
The following tables show the SA800U-WF
’s pin definitions and electrical characteristics.
Table 4: Pin Description
Type
Description
AI
Analog Input
AO
Analog Output
AIO
Analog Input/Output
DI
Digital Input
DO
Digital Output
DIO
Digital Input/Output
OD
Open Drain
PI
Power Input
PO
Power Output
Power Supply
Pin Name
Pin No.
I/O
Description
DC Characteristics Comment
VBAT
J1-159,
J1-160,
J1-161,
J1-162,
J1-163,
J1-164,
J1-165,
J1-166,
J1-167,
J1-168
PI/
PO
Power supply for
the module
Vmax = 4.4 V
Vmin = 3.55 V
Vnom = 3.8 V
Must be provided
with sufficient
current of up to
3 A.
It is suggested to
use a TVS to
increase voltage
surge withstand
capability.
VREG_BOB
J2-140,
J2-142
PO
BOB output
Vnom = 3.7 V
I
O
max = 2000 mA
Power supply for
external LDOs.
