Microhard Systems BulletPlus - Page 119

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4.0 Configuration
Name Description Parameter Min. Typ. Max Units
I/O 1 - 2
(Input)
Input low state voltage
range
VIL -0.5 0 1.2 V
Input high state voltage
range
VIH 1.5 3.3 30 V
Input leakage current
(3.3 VDC IN)
IIN —- 58 —- µA
Typical application input source is a dry switch contact to ground.
Pin includes an internal 56KΩ resistor pull up to 3.3 VDC.
I/O 1 - 2
(Output)
Open drain drive to
ground
Idc —- 100 110 mA
Maximum open circuit
voltage applied
Voc —- 3.3 30 V
Typical application is to drive a relay coil to ground.
Table 4-9-1: Digital I/O Specifications