XR32220_17 Datasheet, PDF (8/15 Pages) Exar Corporation – 2-Driver/2-Receiver Intelligent RS-232 Transceiver with 1.65V to 5.5V Interface

Functional Block Diagram
C1+
C1-
C2+
C2-
Charge
Pump
XR32220
V+
V-
TTL/CMOS
Inputs
T1IN
T2IN
Shutdown
OnLine
Status
Auto On-line /
Control
T1OUT
T2OUT
RS-232
Outputs
TTL/CMOS
Outputs
R1OUT
5K:
R2OUT
5K:
Figure 9. Functional Block Diagram
R1IN
R2IN
RS-232
Inputs
REV1B
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