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ST490ABN Datasheet(PDF) 4 Page - STMicroelectronics

Part # ST490ABN
Description  Low power high speed RS-485/RS-422 transceiver
PDF  17 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST490ABN Datasheet(HTML) 4 Page - STMicroelectronics

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Truth tables
ST490A
4/17
2
Truth tables
Note:
X = Don’t care; Z = High impedance
Note:
X = Don’t care; Z = High impedance
Table 2.
Truth table (driver)
Inputs
Outputs
DI
Y
Z
LL
H
HH
L
Table 3.
Truth table (receiver)
Differential inputs
Outputs
A-B
RO
≥ -0.2V
H
between -0.2V to 0.2V
?
≤ -0.2V
L
OPEN
H



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