10.3. Input / Output Interface Electrical Specifications
Table 10.3. Input / Output Interface Power Supply Electrical Specifications
Item
Symbol
Min.
Typ.
Max.
Unit
Notes
Power Supply Voltage
VCC_5V
CON1_USB_VBUS
CON2_USB_VBUS
4.75
5
5.25
V
VCC_3.3V
VCC_3.3V_IO
3.135
3.3
3.465
V
Table 10.4. Input / Output Interface Electrical Specifications (OVDD = VCC_3.3V, VCC_3.3V_IO)
[a]
Item
Symbol
Min.
Max.
Unit
Notes
High-level output voltage
VOH
0.8xOVDD
OVDD
V
IOH = -1.8mA, -3.6mA, -7.2mA,
-10.8mA
Low-level output voltage
VOL
0
0.2×OVDD
V
IOL = 1.8mA, 3.6mA, 7.2mA,
10.8mA
High-level input voltage
VIH
0.7×OVDD
OVDD+0.3
V
Low-level input voltage
VIL
-0.3
0.3×OVDD
V
Input leakage current (no Pull-up/Pull-down)
IIN
-5
5
μA
Pull-up resistance (5K_PU)
-
4.8
5.3
k
Ω
Pull-up resistance (47K_PU)
-
45.8
49.8
k
Ω
Pull-up resistance (100K_PU)
-
101
105
k
Ω
Pull-up resistance (100K_PD)
-
101
108
k
Ω
[a]
Excluding pin 9 (LED1_CTRL) of the WWAN expansion interface
Table 10.5. WWAN Expansion Interface Pin 9 (LED1_CTRL) Electrical Specifications
Item
Symbol
Min.
Max.
Unit
Notes
High-level input voltage
VIH
1.4
5.25
V
Low-level input voltage
VIL
-0.3
0.3
V
10.4. Power Supply Circuit Structure
The structure of the power supply circuit of Armadillo-IoT is as follows. The input voltage from the power input interface
1 (CON 14) or the power input interface 2 (CON 15) is converted to each required voltage by the power supply IC and
supplied to the internal circuits and each interface. Please design the connection of any external equipment and power
supplies so as not to exceed the maximum output current value of each interface and switching regulator (DC-DC).
Armadillo-IoT Gateway G3Product Manual - INTL
Electrical Specifications
109
