unicore UM981 - Operating Conditions; IO Threshold

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.