MAX3232E
3-V TO 5.5-V MULTICHANNEL RS-232 LINE DRIVER/RECEIVER
WITH ±15-kV IEC ESD PROTECTION
www.ti.com
SLLS664A–AUGUST 2005–REVISED APRIL 2007
APPLICATION INFORMATION
1
2
3
4
16
V
CC
C1+
V+
+
−
C
BYPASS
= 0.1µF
+
−
15
14
GND
C1
+
−
†
C3
DOUT1
C1−
C2+
C2−
13
RIN1
+
−
5 kΩ
C2
5
6
12
11
ROUT1
DIN1
V−
−
+
C4
7
8
10
9
DOUT2
RIN2
DIN2
ROUT2
5 kΩ
†
C3 can be connected to V or GND.
CC
NOTES: A. Resistor values shown are nominal.
B. Nonpolarized ceramic capacitors are acceptable. If polarized tantalum or electrolytic capacitors are used, they should be
connected as shown.
V
CC
vs CAPACITOR VALUES
V
CC
C1
C2, C3, C4
3.3 V ± 0.3 V
5 V ± 0.5 V
3 V to 5.5 V
0.1 µF
0.047 µF
0.1 µF
0.1 µF
0.33 µF
0.47 µF
Figure 4. Typical Operating Circuit and Capacitor Values
7
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