HID Global Corporation VERICLASS Manuale Utente
veriCLASS Hardware Specification VP3500 Reader Board, 3500-906
9.3.2
UART Interface (P104)
Table 16: P104 - Electrical Characteristics UART Interface
Signal
Parameter
Min
Typ
Max
Unit
Input High-level Voltage
2
5.5
V
Input Low-level Voltage
-0.3
0.8
V
RX, CTS
Input Leakage Current
Typ: Ta=25˚C
Max: Ta=85˚C
Typ: Ta=25˚C
Max: Ta=85˚C
40
400
nA
Output High-level Voltage
2.9
3.3
V
TX, RTS
Output Low-level Voltage
0.2
V
Input Low-level Voltage
-0.15
0.15*CVCC
V
Input High-level Voltage 0.7CVCC
CVCC+0.5 V
Input Low-level Current
600
uA
nRST
Input Low-level Current
-40
40
uA
9.4
Contact Interfaces (P102, P103)
Table 17: P102 - Contact Interface 1 Class A, 5V
Signal
Parameter
Min
Typ
Max
Unit
Contact Card Voltage
Load = 60mA
Load = 60mA
4.6 5 5.4 V
CVCC (P102)
Maximum Load Current
75
mA
Table 18: P102 - Contact Interface 1 Class B, 3V
Signal
Parameter
Min
Typ
Max
Unit
Contact Card Voltage
Load = 60mA
Load = 60mA
2.76 3
3.24 V
CVCC (P102)
Maximum Load Current
60
mA
Table 19: P102 - Contact Interface 1 Class B, 1.8V
Signal
Parameter
Min
Typ
Max
Unit
Contact Card Voltage
Load = 35mA
Load = 35mA
1.656 1.8
1.944 V
CVCC (P102)
Maximum Load Current
75
mA
Table 20: P103- Contact Interface 2 Class A, 5V
Signal
Parameter
Min
Typ
Max
Unit
Contact Card Voltage
Load = 30mA
Load = 30mA
4.6 5 5.4 V
CVCC (P103)
Maximum Load Current
70
mA
Table 21: P103 - Contact Interface 2 Class B, 3V
Signal
Parameter
Min
Typ
Max
Unit
Contact Card Voltage
Load = 30mA
Load = 30mA
2.76 3
3.24 V
CVCC (P103)
Maximum Load Current
70
mA
Page 26 of 28
March 2011
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