Specifications

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7
m1805 Module Specification
3. Electrical specification
The electrical specifications of the module are directly related to the Specifications for the m1805
chipset. The below information is only the extract from m1805 specification. For more detailed
information, please refer to the up-to-date specification of the chipset available.
3.1 Absolute maximum ratings
Symbol
Parameter
Min.
Max
Unit
Supply voltages
VDD3
-0.3
+3.6
V
DEC
1.32
V
VSS
0
V
I/O Pin voltage
VIO
-0.3
VDD + 0.3V
V
Environmental (AQFN package)
Storage temperature
-40
+125
°C
MSL
Moisture Sensitivity Level
3
ESD HBM
Human Body Model Class 2
2
KV
ESD CDM
QF
Charged Device Model
500
V
Flash memory
Endurance
20000
Write/erase cycles
Retention
10 years at 40°C
Number of times an
address can be written
between erase cycles
2
Times
Notes ：Maximum ratings are the extreme limits to which the chip can be exposed for a limited
amount of time without permanently damaging it. Exposure to absolute maximum ratings for
prolonged periods of time may affect the reliability of the device.