V
CC
V
CC
+
+
19
CC
+
+
0.1µF
0.1µF
C5
C1
17
CC
V
C5
C1
0.1µF
0.1µF
V
2
3
C1+
2
V+
V-
3
C1+
+
+
V+
V-
+
+
0.1µF
0.1µF
*C3
C4
0.1µF
0.1µF
*C3
C4
4
5
C1-
4
5
C1-
C2+
7
SP3222EB
SSOP
TSSOP
C2+
7
SP3222EB
DIP/SO
+
+
C2
0.1µF
C2
0.1µF
6
C2-
6
C2-
T1OUT
T2OUT
17
8
13 T1IN
T1OUT
T2OUT
15
8
12 T1IN
LOGIC
RS-232
LOGIC
RS-232
12
15
10
INPUTS
T2IN
OUTPUTS
11
13
10
INPUTS
T2IN
OUTPUTS
16
R1IN
R1OUT
R2OUT
14
R1IN
R1OUT
R2OUT
5kΩ
RS-232
INPUTS
LOGIC
OUTPUTS
5kΩ
RS-232
INPUTS
LOGIC
OUTPUTS
R2IN
9
R2IN
9
5kΩ
5kΩ
1 EN
20
1 EN
18
SHDN
SHDN
GND
18
GND
16
*can be returned to
either VCC or GND
*can be returned to
either VCC or GND
Figure 8. SP3222EB Typical Operating Circuits
V
CC
+
16
CC
0.1µF
0.1µF
C5
C1
V
2
1
C1+
V+
V-
+
+
+
+
0.1µF
0.1µF
*C3
C4
3
4
C1-
6
C2+
SP3232EB
C2
0.1µF
5
C2-
T1OUT
T2OUT
14
11 T1IN
LOGIC
RS-232
7
10
12
9
INPUTS
T2IN
OUTPUTS
R1IN 13
R1OUT
R2OUT
5kΩ
5kΩ
RS-232
INPUTS
LOGIC
OUTPUTS
R2IN
8
GND
15
*can be returned to
either VCC or GND
Figure 9. SP3232EB Typical Operating Circuit
Rev. A Date:12/11/03
SP3222EB/3232EB True +3.0 to +5.5V RS-232 Transceivers
© Copyright 2003 Sipex Corporation
7
SIPEX [ SIPEX CORPORATION ]
