MAX239 Maxim Integrated Products, MAX239 Datasheet - Page 25

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

Figure 16. MAX238 Pin Configuration and Typical Operating Circuit
TOP VIEW
R2
R1
T2
T1
GND
R2
R1
T1
V
C1+
C1-
OUT
OUT
OUT
OUT
CC
V+
IN
IN
IN
______________________________________________________________________________________
10
11
12
1
2
3
4
5
6
7
8
9
MAX238
DIP/SO
+5V-Powered, Multichannel RS-232
24
23
22
21
20
19
18
17
16
15
14
13
T3
R3
R3
T4
T4
T3
T2
R4
R4
V-
C2-
C2+
OUT
IN
OUT
IN
IN
IN
OUT
OUT
IN
TTL/CMOS
TTL/CMOS
OUTPUTS
INPUTS
1.0µF
1.0µF
18
19
22
17
10
12
13
14
21
5 T1
6
4
C1+
C1-
C2+
C2-
T2
T3
R1
R2
R3
R4
T4
IN
IN
IN
IN
OUT
OUT
OUT
OUT
+5V
+5V
+5V
+5V
Drivers/Receivers
1.0µF
VOLTAGE INVERTER
VOLTAGE DOUBLER
+10V TO -10V
400kΩ
400kΩ
400kΩ
400kΩ
+5V TO +10V
+5V INPUT
GND
V
T1
T2
T3
T4
R1
R2
R3
R4
CC
8
9
5kΩ
5kΩ
5kΩ
5kΩ
T2
T3
T1
T4
R2
R3
R4
R1
OUT
OUT
OUT
OUT
V+
IN
IN
IN
V-
IN
2
1
24
7
3
23
16
20
11
15
1.0µF
1.0µF
RS-232
OUTPUTS
RS-232
INPUTS
25