
UM0529
Pin assignments
15/29
5.3 Connector
assignments
shows connector assignments of the evaluation board connectors.
5.4
USB pin assignments
shows USB mini-B connector pin assignments.
5.5
Decoder U2/U3 pin description
shows the pin description of the decoder.
Table 7.
Evaluation board connectors
Connector
Description
J7
USB mini-B connector
J3
External power supply(5 V), GND
Table 8.
USB mini-B pin assignments
Pin no.
Description
1
V
BUS
– connect a 5 V supply voltage when powering V
BUS
pin from mini-B connector.
2
D+ – data line
3
D- – data line
4
ID – not used
5
GND – ground reference
Table 9.
Decoder pin U2/ U3 description
Pin no
Symbol
Name and function
1, 15
n1G, n2G
Enable inputs
2, 3
1A, 1B
Address inputs
4, 5, 6, 7
n1Y0 to n1Y3
Outputs
12, 11, 10, 9
n2Y0 to n2Y3
Outputs
14, 13
2A, 2B
Address Inputs
8
GND
Ground (0 V)
16
VCC
Positive supply voltage
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