±15kV ESD-Protected, 2.5V, 1µA, 460kbps,
RS-232 Compatible Transceivers
+2.5V
CBYPASS
0.1µF
C1
0.1µF
C2
0.1µF
VCC
C1+
V+
C1-
MAX3316E
C2+ MAX3317E
V-
MAX3318E
C2-
MAX3319E
T_ IN
T_ OUT
R_ OUT
R_ IN
C3
0.1µF
C4
0.1µF
1000pF
+5V
RX
RS-232
COMPLIANT
TX
TRANSCEIVER
GND
Figure 1a. RS-232 Compatibility Circuit
5V/div
5V/div
5V/div
T1 IN
MAX3316E–MAX3319E
T1 OUT
MAX3316E–MAX3319E
RS-232 COMPLIANT
RECEIVER OUTPUT
Figure 1b. MAX3316E–MAX3319E Transmitter Output
Compatibility with an RS-232 Receiver
2V/div
2V/div
VCC OR SHDN
(MAX3317E)
FORCEOFF
(MAX3318E/MAX3319E)
T1
T2
10µs/div
Figure 2. Transmitter Outputs when Exiting Shutdown or
Powering Up
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