User Manual

XR‐22A W
IFI modu
le
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Copyright©2019  ShenzhenJiXinInteligenceCo.,LtdAllRightsReserved 
Page9of14
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Table2.3  Startmode
mode RST PB2 PB3
Download
rising
edge
low low
Run
rising
edge
low high
high low
high high
Notice:PB2andPB3hadbeenpulledupinmodule,modulehasself-resetfunction
3. Electricalparameters
3.1 Electrical characteristics
parameter testcondition min typ max unit
Storage 
Tem p. 
- -55 normal 150 ℃
Worktemp. - -40 20 85 ℃
Maxwelding
temp.
IPC/JEDECJ-STD-020 - - 260 ℃
Supplyvolt. VCC 2.7 3.3/5 5.5 V
I/O
V
IL
 VCC_IO=3.3V -0.3 - 1.32 V
V
IH
 VCC_IO=3.3V 2.06 - 3.6 V