Specifications

L70 Hardware Design
L70_HD_V1.0 - 27 -
5. Electrical, reliability and radio characteristics
5.1. Absolute maximum ratings
Absolute maximum rating for power supply and voltage on digital pins of the module are listed in
Table 12.
Table 12: Absolute maximum ratings
Parameter
Min
Max
Unit
Power supply voltage （VCC）
-0.3
4.3
V
Backup battery voltage (V_BCKP)
-0.3
4.3
V
Input voltage at digital pins
-0.3
3.6
V
VCC_RF output current (Ivccrf)
50
mA
Input power at RF_IN (Prfin)
0
dBm
Storage t e mp er at ur e
-45
125
°C
Note: Stressing the device beyond the “Absolute Maximum Ratings” may cause permanent damage.
These are stress ratings only. The product is not protected against over voltage or reversed voltage.
If necessary, voltage spikes exceeding the power supply voltage specification, given in table above,
must be limited to values within the specified boundaries by using appropriate protection diodes.
5.2. Operating conditions
Table 13: The module power supply ratings
Parameter
Description
Conditions
Min
Typ
Max
Unit
VCC
Supply voltage
Voltage must stay
within the min/max
values, including
voltage drop, ripple,
and spikes.
2.8
3.3
4.3
V
I
VCCP
*
Peak supply current
VCC=3.3V
150
mA
V_BCKP
Backup voltage supply
2.0
3.3
4.3
V
VCC_RF
Output voltage RF
section
VCC
V
I
VCC_RF
VCC_RF output
current
50
mA
T
OPR
Normal Operating
temperature
-40
25
85
℃
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