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MAX242CWN

Part # MAX242CWN
Description IC TXRX 2/2 FULL RS232 18SOIC
Category IC
Availability Out of Stock
Qty 0
Qty Price
1 + $0.57000

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Technical Document


DISCLAIMER: The information provided herein is solely for informational purposes. Customers must be aware of the suitability of this product for their application, and consider that variable factors such as Manufacturer, Product Category, Date Codes, Pictures and Descriptions may differ from available inventory.

MAX220–MAX249
+5V-Powered, Multichannel RS-232
Drivers/Receivers
______________________________________________________________________________________ 25
GND
8
3
R2
OUT
22
23
R3
OUT
R2
IN
R3
IN
5kΩ
5kΩ
6
7
R1
OUT
R1
IN
5kΩ
RS-232
OUTPUTS
TTL/CMOS
INPUTS
RS-232
INPUTS
TTL/CMOS
OUTPUTS
R1
R2
R3
17
16
R4
OUT
R4
IN
5kΩ
R4
2
5
T1
IN
T1
OUT
+5V
400kΩ
+5V
18
1
T2
IN
T2
OUT
T2
400kΩ
19
T3
OUT
24
T3
IN
+5V
T3
400kΩ
11
C1+
C1-
1.0µF
10
12
13
14
15
+5V INPUT
C2+
C2-
V
CC
+5V TO +10V
VOLTAGE DOUBLER
9
1.0µF
1.0µF
+10V TO -10V
VOLTAGE INVERTER
4
1.0µF
1.0µF
21
20
T4
IN
T4
OUT
+5V
T4
400kΩ
T1
24
23
22
21
20
19
18
17
1
2
3
4
5
6
7
8
T3
OUT
R3
IN
R3
OUT
T4
IN
R2
OUT
R2
IN
T1
OUT
T2
OUT
TOP VIEW
T3
IN
T2
IN
R4
OUT
GND
R1
IN
R1
OUT
T1
IN
16
15
14
13
9
10
11
12
R4
IN
V-
C2-
C2+C1-
V+
C1+
V
CC
DIP/SO
MAX238
T4
OUT
V+
V-
Figure 16. MAX238 Pin Configuration and Typical Operating Circuit
MAX220–MAX249
+5V-Powered, Multichannel RS-232
Drivers/Receivers
26 ______________________________________________________________________________________
GND
3
18
R3
OUT
12
R4
OUT
R3
IN
R4
IN
5kΩ
5kΩ
22
21
R2
OUT
R2
IN
5kΩ
RS-232
OUTPUTS
TTL/CMOS
INPUTS
RS-232
INPUTS
TTL/CMOS
OUTPUTS
R2
1
2
R1
OUT
R1
IN
5kΩ
R1
R3
R4
10
9
R5
OUT
R5
IN
5kΩ
R5
19
24
T1
IN
T1
OUT
+5V
400kΩ
+5V
23
20
T2
IN
T2
OUT
T2
400kΩ
16
T3
OUT
13
T3
IN
+5V
T3
400kΩ
C1+
C1-
1.0µF
6
V
CC
8
+5V INPUT
4
5
1.0µF
+10V TO -10V
VOLTAGE INVERTER
17
1.0µF
T1
24
23
22
21
20
19
18
17
1
2
3
4
5
6
7
8
T1
IN
T2
IN
R2
OUT
R2
IN
V
CC
GND
R1
IN
R1
OUT
T1
OUT
R3
IN
R3
OUT
V-
C-
C+
V+
16
15
14
13
9
10
11
12
T3
IN
N.C.
EN
T3
OUT
R4
IN
R4
OUT
R5
OUT
R5
IN
DIP/SO
MAX239
T2
OUT
7.5V TO 13.2V
INPUT
7
V+
11
EN
14
15
N.C.
V-
TOP VIEW
Figure 17. MAX239 Pin Configuration and Typical Operating Circuit
MAX220–MAX249
+5V-Powered, Multichannel RS-232
Drivers/Receivers
______________________________________________________________________________________ 27
GND
18
4R3
OUT
40
R4
OUT
R3
IN
R4
IN
5kΩ
5kΩ
13
10
R2
OUT
R2
IN
5kΩ
RS-232
INPUTS
TTL/CMOS
OUTPUTS
RS-232
OUTPUTS
TTL/CMOS
INPUTS
R2
16
17
R1
OUT
R1
IN
5kΩ
R1
R3
R4
36
35
R5
OUT
R5
IN
5kΩ
R5
7
15
T1
IN
T1
OUT
+5V
400kΩ
+5V
14
8
T2
IN
T2
OUT
T2
400kΩ
37
T3
OUT
6
T3
IN
+5V
T3
400kΩ
C1+
C1-
1.0µF
25
V
CC
+5V INPUT
19
30
1.0µF
26
1.0µF
+5V TO +10V
VOLTAGE DOUBLER
3
1.0µF
T1
+5V
2
41
T5
IN
T5
OUT
T5
400kΩ
5
38
T4
IN
T4
OUT
+5V
400kΩ
T4
27
C2+
C2-
28
1.0µF
29
+5V TO -10V
VOLTAGE INVERTER
V+
39
EN
42
43
Plastic FP
MAX240
SHDN
EN
T5
OUT
R4
IN
R4
OUT
R5
OUT
R5
IN
N.C.
N.C.
T3
IN
T4
IN
R2
OUT
T2
IN
T1
IN
R1
OUT
R1
IN
N.C.
N.C.
N.C.
N.C.
V
CC
GND
R2
IN
N.C.
T4
OUT
T2
OUT
T1
OUT
T3
OUT
N.C.
R3
IN
R3
OUT
N.C.
T5
IN
N.C.
C1+
C2
V+
C1-
C2+
N.C.
V-
N.C.
N.C.
N.C.
33
32
31
30
29
28
27
26
25
24
23
34
35
36
37
38
39
40
41
42
43
44
1
2
3
4
5
6
7
8
9
10
11
22
21
20
19
18
17
16
15
14
13
12
SHDN
TOP VIEW
V-
Figure 18. MAX240 Pin Configuration and Typical Operating Circuit
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