HikRobot USB3.0, User Manual

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USB3.0 Board Level Camera
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User Manual
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Parameter Name Parameter Symbol Value
Input Logic Level High VH 3.3 VDC to 24 VDC
Input Rising Delay TDR < 0.66 μs
Input Falling Delay TDF < 0.05 μs

Make sure that the input voltage is not from 0.3 VDC to 3.3 VDC because the electric status
between these two values are not stable.

The breakdown voltage is 30 VDC, and keep voltage stable.

To prevent damage to the GPIO pin, please connect GND first and then input voltage to
bi-directional I/O.
10.1.2 Configure Bi-Directional I/O to Output
The allowed maximum current is 25 mA and output impedance is 40 Ω.
When the environment temperature is 25 °C (77 °F), the relation among external voltage,
resistance and the output level low is shown below.
Table 10-2 Parameter of Output Logic Level Low
External Voltage External Resistance VL
3.3 V 1 KΩ 160 mV
5 V 1 KΩ 220 mV
12 V 1 KΩ 460 mV
24 V 1 KΩ 860 mV
30 V 1 KΩ 970 mV
When the voltage of external res istance (1 KΩ) is pulled up to 5 VDC, the logic level and electrica l
feature of configuring bi-directional as output are shown below.