User's Manual

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
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
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
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
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
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
2.76 3 3.24 V
CVCC (P103)
Maximum Load Current 70 mA
Page 26 of 28
March 2011
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