MAX239 Maxim Integrated Products, MAX239 Datasheet - Page 20

• Manufacturer Part Number: MAX239
• Description: (MAX220 - MAX249) +5V-Powered / Multichannel RS-232 Drivers/Receivers
• Manufacturer: Maxim Integrated Products

+5V-Powered, Multichannel RS-232
Drivers/Receivers
Figure 9. MAX230 Pin Configuration and Typical Operating Circuit
Figure 10. MAX231 Pin Configurations and Typical Operating Circuit
20
______________________________________________________________________________________
R2
T2
R2
T2
OUT
OUT
C+
C-
V-
IN
IN
TOP VIEW
PIN NUMBERS IN ( ) ARE FOR SO PACKAGE
1
4
5
6
7
TOP VIEW
2
3
MAX231
DIP
T3
T1
T2
GND
T2
T1
C1+
OUT
V
OUT
OUT
C1-
CC
V+
IN
IN
10
1
2
3
4
5
6
7
8
9
14
13
12
11
10
9
8
V+
V
GND
T1
R1
R1 OUT
T1
DIP/SO
MAX230
CC
OUT
IN
IN
R2
T2
R2
T2
N.C.
OUT
OUT
C+
C-
V-
IN
IN
20
19
18
17
16
15
14
13
12
11
1
2
3
4
5
6
7
8
T5
T5
T4
V-
C2-
C2+
T4
N.C.
SHDN
T3
IN
OUT
IN
OUT
IN
MAX231
SO
16
15
14
13
12
11
10
9
V+
V
GND
T1
R1
R1
T1
N.C.
CC
OUT
OUT
IN
IN
TTL/CMOS
TTL/CMOS
TTL/CMOS
INPUTS
OUTPUTS
1.0µF
1.0µF
INPUTS
1.0µF
N.C.
x
10
11
12
14
15
19
18
(11)
(10)
8
5
4
C1+
C1-
C2+
C2-
T1
T2
T3
T4
T5
8
7
9
6
1
2
IN
IN
IN
IN
IN
+5V
+5V
+5V
+5V
+5V
C1+
C1-
T1
R2
T2
R1
1.0µF
VOLTAGE INVERTER
IN
IN
OUT
OUT
+5V
+5V
VOLTAGE DOUBLER
1.0µF
+10V TO -10V
+5V TO +10V
400kΩ
400kΩ
400kΩ
400kΩ
400kΩ
+5V INPUT
VOLTAGE CONVERTER
400kΩ
400kΩ
V CC
GND
T4
T1
T2
T3
T5
+12V TO -12V
7
+5V INPUT
6
GND
T1
T2
V
CC
R1
R2
13 (15)
T1
T2
T3
T4
T5
12 (14)
OUT
OUT
OUT
OUT
OUT
V-
V+
2
3
1
20
16
17
13
9
5kΩ
T1
T2
SHDN
5kΩ
R1
1.0µF
1.0µF
RS-232
OUTPUTS
R2
OUT
OUT
V+
V-
IN
+7.5V TO +12V
IN
14
3
11
4
10
5
(12)
(13)
(16)
1.0µF
C2
RS-232
OUTPUTS
RS-232
INPUTS