XR32220EBER-L-TR Datasheet, PDF (12/16 Pages) Exar Corporation – 2-Driver/2-Receiver Intelligent RS-232 Transceiver with 1.65V to 5.5V Interface

XR32220
Applications Information (Continued)
Valid RS-232
Level at
Shutdown
Receiver Input
Yes
L
No
L
Yes
H
No
H
Yes
H
No
H
Table 2. XR32220 Operation Truth Table
OnLine
x
x
L
L
H
H
Driver
Outputs
High-Z
High-Z
Active
High-Z
Active
Active
Receiver
Outputs
High-Z
High-Z
Active
Active
Active
Active
Status Mode of Operation
H
Manually forced shutdown
L
Manually forced shutdown
H
Normal Operation (Auto On-Line^® enabled)
L
Standby Operation due to Auto On-Line^® circuitry
H
Normal Operation
L
Normal Operation
Table 3. XR32220 Driver and Receiver Truth Table
Shutdown
L
H
H
RxIN
x
L
H
RxOUT
High-Z
H
L
TxIN
x
L
H
TxOUT
High-Z
H
L
REV1B
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