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ST485ABN Fiches technique(PDF) 4 Page - STMicroelectronics

No de pièce ST485ABN
Description  Very high speed low power RS-485/RS-422 transceiver
Download  19 Pages
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Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST485ABN Fiches technique(HTML) 4 Page - STMicroelectronics

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Truth tables
ST485AB
4/19
2
Truth tables
Note:
X = Don’t care; Z = High impedance
Note:
X = Don’t care; Z = High impedance
Table 3.
Truth table (driver)
Inputs
Outputs
Mode
RE
DE
DI
B
A
A
XH
H
L
H
Normal
XH
L
H
L
Normal
LL
X
Z
Z
Normal
Table 4.
Truth table (receiver)
Inputs
Outputs
Mode
RE
DE
A-B
RO
LL
-0.2 V
H
Normal
LL
-0.2 V
L
Normal
L
L
Inputs open
H
Normal


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