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Descriptions and non-contractual illustrations in this document are given as an indication only.
ercogener reserves the right to make any modifications.
Dct_427_02
3.9.4 Multi One Wire input (option)
The option Multi One Wire allows the reading of all 1-wire devices with the possibility to have several
devices on the same bus.
This option Multi 1-wire cannot be used with embedded applications, but can be directly
controlled with an EGM development. Contact us.
Table 31 : Description of Multi 1- Wire Bus
Signal
Pins N°
Connector
I/O Kind of I/O Description
Bus One Wire
GND 2 Connector 2 pins
3 Connector 4 pins
I/O Digital Bus Multi One
Corresponds to wires
2 - Blue
for Bus One Wire
3 - Black for GND
Table 32 : Multi One Wire Bus - Electrical characteristics
Characteristics Symbols Conditions Min. Typ. Max. Unité
Input Voltage
– Low
V
IL
-0.3 0.9 V
DC
Input Voltage
– High
V
IH
1.9 3.3 V
DC
Input Leakage Current I
LEAK
-10 10 µA
DC
Input capacitance C
IN
10 pF
Output Low-level Voltage V
OL
@ charge 4mA 0.4 V
DC
Output High-level Voltage V
OH
@ charge 4mA 2.8 3.3 V
DC
Figure 18 : Internal electrical scheme of Multi 1-Wire Bus