HID Global Corporation VERICLASS Manuale Utente
veriCLASS Hardware Specification VP3500 Reader Board, 3500-906
9
VP3500A00 Electrical Characteristics
9.1
Absolute Maximum Ratings
Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to
the device. This is a stress rating only and functional operation of the device at these or other
conditions beyond those indicated in the operational sections of this specification are not implied.
Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
the device. This is a stress rating only and functional operation of the device at these or other
conditions beyond those indicated in the operational sections of this specification are not implied.
Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
Table 13: Absolute Maximum Ratings
Operating Temperature
-25 to 85˚C
Storage Temperature
-40 to 120˚C
Voltage on Input Pins in respect to Ground
-0.3V to 5.5V
Maximum Operating Voltage
5.5V
9.2
Power Supply
Table 14: Electrical Characteristics Power Supply
Signal
Parameter
Min
Typ
Max
Unit
Input Voltage
2.7
5.5
V
Vin (P104)
Current
Consumption at
5VDC
Consumption at
5VDC
mA
VUSB (P101)
Input Voltage
4.3
5.5
V
Note: The power consumption depends on the operation mode and the supply voltage. For more details
reference 0
reference 0
Power Considerations.
9.3
Host Interfaces
9.3.1
USB Interface (P101)
Table 15: Electrical Characteristics USB Interface
Signal
Parameter
Min
Typ
Max
Unit
Input High-level Voltage
4.2
5.5
V
VUSB
Input Low-level Voltage
-0.3
0.8
V
Input High-level Voltage
2
5.5
V
Input Low-level Voltage
-0.3
0.8
V
Output High-level Voltage
2.9
3.3
V
DP, DM
Output Low-level Voltage
0.2
V
March 2011
Page 25 of 28
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