Appendix B: GPIO Details
Copyright © 2009, Impinj, Inc. 24
*User-supplied voltage
14 User IN 3 Isolated input 3
15 User IN 4 Isolated input 4
Table 5: DB-15 Connector Pin-Out
Pin I/O Name I/O Function
Table 6: GPIO Interface Electrical Specification
Pin Parameter Description Min Max Unit Conditions
+5V Supply I
O
Output current 200 mA
User IN 1-4 V
IH
HIGH level input voltage 3 30 V
User IN 1-4 V
IL
LOW level input voltage 0 2 V
User IN 1-4 I
LI
Input current 5 mA 24V input
User IN 1-4 V
I
Input voltage range 0 30 V No damage
User OUT 1-4 V
OH
Output high voltage V+* V 10k pullup
User OUT 1-4 V
OL
Output low voltage Vol+5 V 200mA load
User OUT 1-4 V
I
Operating voltage range 40 V
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