Sierra Wireless AceView User's Guide download pdf (Page 22)

AirLink GX400 HSPA+ User Guide

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Table 2-2: GX400 Digital I/O Specifications

Pin Name Specification Param Min Typ Max Units

4 Dig I/O

(Input)

Input low state

voltage

VIL -0.5 0 1.2 V

Input high state

voltage range

VIH 1.3 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 56K ohm pull up to 3.3 VDC.

Dig I/O

(Output)

Open drain drive to

ground

Idc ---- 150 200 mA

Maximum open

circuit voltage

applied

Voc ---- 3.3 30 V

Typical application is to drive a relay coil to ground.

1 2 ... 17 18 19 20 21 22 23 24 25 26 27 ... 48 49

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Sierra Wireless AceView User's Guide Page 22