ITech IT-M3900B Series User Manual page 175

Pin
6
7
GND
General Digital I/O Function
•
•
Type
Input/Output
Input/Output
Ground terminal, that is, the negative terminal
corresponding to each of the above 7 pins.
In this chapter, all the pulse signals involved in the digital I/O function are
switched from high level to low level.
Signal definition
Digital I/O functions involve input and output levels and pulse signals. The in-
put signal is the control signal provided externally to IT-M3900B, the output
signal is the level signal provided externally by IT-M3900B, and the pulse
signal is the edge signal switched between high and low levels.
High level signal
Input signal
Low level signal
High level signal
Output signal
Low level signal
Level rise slope
Pulse Level fall slope
Width
Input/Output Function
The IO-1 ~ IO-7 pins are featured default function, the user can setting the
function of pin according to requirement. The Input and Output are the
Copyright © Itech Electronic Co., Ltd.
Description (Default function)
Sync-On, synchronous on
control.
Sync-Off, synchronous off
control.
Typical: 5V
Range: 1.6V-15V
Current: ≤100mA
Typical: 0V
Range: -5V-0.8V
Current: ≤100mA
Voltage level: 5V
Current: ≤1mA
Voltage level: 0V
Current: 0.5mA
10us
2us
30us
Basic Operation
Properties
Pulse signal
Pulse signal
Level signal
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