MAX239 Maxim Integrated Products, MAX239 Datasheet - Page 27

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

Figure 18. MAX240 Pin Configuration and Typical Operating Circuit
R2
R1
GND
N.C.
T2
T1
R1
N.C.
N.C.
N.C.
V
OUT
OUT
CC
IN
IN
IN
TOP VIEW
12
13
14
15
16
17
18
19
20
21
22
______________________________________________________________________________________
Plastic FP
MAX240
+5V-Powered, Multichannel RS-232
44
43
42
41
40
39
38
37
36
35
34
N.C.
SHDN
EN
T5
R4
R4
T4
T3
R5
R5
N.C.
OUT
IN
IN
IN
OUT
OUT
IN
TTL/CMOS
TTL/CMOS
OUTPUTS
INPUTS
1.0µF
1.0µF
27
29
13
39
36
42
25
28
15 T1
14
37
38 T4
16
3
2
C1+
C1-
C2+
C2-
EN
T2
T3
T5
R1
R2
R3
R4
R5
Drivers/Receivers
IN
IN
IN
IN
IN
OUT
OUT
OUT
OUT
OUT
+5V
+5V
+5V
+5V
+5V
1.0µF
VOLTAGE DOUBLER
VOLTAGE INVERTER
400kΩ
400kΩ
400kΩ
400kΩ
400kΩ
+5V TO +10V
+5V TO -10V
+5V INPUT
V
GND
CC
R1
R2
R3
R4
R5
19
T1
T2
T3
T4
T5
18
5kΩ
5kΩ
5kΩ
5kΩ
5kΩ
T2
T5
T3
T1
T4
SHDN
R3
R4
R5
R1
R2
OUT
OUT
OUT
OUT
OUT
V+
V-
IN
IN
IN
IN
IN
43
10
4
40
35
7
8
6
5
41
17
26
30
1.0µF
1.0µF
RS-232
OUTPUTS
RS-232
INPUTS
27