unicore UM981, Руководство пользователя, Страница: 16 / 27

UC-00-M33 EN R1.0 Hardware 11
2.2.2 Operating Conditions
Table 2-3 Operating Conditions
Parameter Symbol Min. Typ. Max. Unit Condition
Power Supply Voltage 7 VCC 3.0 3.3 3.6 V
Maximum VCC Ripple V
rpp
0 50 mV
Working Current 8 I
opr
145 180 mA VCC=3.3 V
VCC_RF Output Voltage VCC_RF VCC-0.1 V
VCC_RF Output Current ICC_RF 50 mA
Operating Temperature T
opr
-40 85 ° C
Power Consumption P 480 mW
2.2.3 IO Threshold
Table 2-4 IO Threshold
Parameter Symbol Min. Typ. Max. Unit Condition
Low Level Input Voltage V
in_low
0 0.6 V
High Level Input Voltage V
in_high
VCC ×
0.7
VCC +
0.2
V
Low Level Output Voltage V
out_low
0 0.45 V I
out
= 2 mA
High Level Output
Voltage
V
out_high
VCC -
0.45
VCC V I
out
= 2 mA
7 The voltage range of VCC (3.0 V ~ 3.6 V) has already included the ripple voltage.
8
Since the product has capacitors inside, inrush current occurs during power-on. You should evaluate
in the actual environment in order to check the effect of the supply voltage drop caused by inrush
current in the system.