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ST1480US Datasheet(PDF) 3 Page - STMicroelectronics

Part # ST1480US
Description  3.3 V powered, 15 kV ESD protected, up to 12 Mbps true RS-485/RS-422 transceiver
PDF  21 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST1480US Datasheet(HTML) 3 Page - STMicroelectronics

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2
Truth tables
Table 2. Truth table (driver)
Inputs
Outputs
Mode
RE
DE
DI
B
A
X
H
H
L
H
Normal
X
H
L
H
L
Normal
L
L
X
Z
Z
Normal
H
L
X
Z
Z
Shutdown
Note:
X= do not care; Z= high impedance
Inputs
Output
Mode
RE
DE
A-B
RO
L
L
≥+0.2V
H
Normal
L
L
≤-0.2V
L
Normal
L
L
Inputs open
H
Normal
L
L
Inputs shorted
H
Normal
H
L
X
Z
Shutdown
Note:
X= do not care; Z= high impedance
ST1480US
Truth tables
DS13697 - Rev 1
page 3/21



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