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Power Supply
Do not input power until the engine is connected properly, otherwise the components inside the engine
might be damaged. Be sure the power is cut off before connecting or disconnecting the flexible flat cable.
Unstable power supply or sharp voltage drop might make the engine under unstable state. Wait at least
for 2s before supplying power again.
Ripple Noise
The ripple noise of power supply should be within 50mV (peak-to-peak), and 50mV is the limit.
DC Characteristics
Operating Voltage
Parameter
Operating Voltage
Operating Current
(@ 5.0V)
I/O Requirements
VDD=3.3V, VSS=0V, T=23° C
Parameter
VIL
VIH
VOL
VOH
11
Chapter 3 Electrical
(T=23° C)
Symbol
Minimum
VIN
（TTL232）
VIN（USB）
Operating
Current
Idle Current
Low Power
Minimum
VSS-0.1
VDD*0.8
VSS
VDD-0.3
Typical
3.3
5.0
4.5
5.0
-
330
-
60
-
1.2
Maximum
VDD*0.2
VDD+0.1
VSS+0.3
VDD
Maximum
Unit
5.5
V
5.5
V
-
mA
-
mA
-
mA
Unit
V
V
V
V
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