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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
22 ______________________________________________________________________________________
1.0
µ
F
+5V INPUT
GND
11
6
23
5
R2
OUT
RS-232
INPUTS
TTL/CMOS
OUTPUTS
14
13
21
R5
OUT
5k
Ω
17
18
R4
OUT
5k
Ω
24
R3
OUT
5k
Ω
24
23
22
21
20
19
18
17
1
2
3
4
5
6
7
8
R3
IN
R3
OUT
T5
IN
SHDNT2
OUT
T1
OUT
T3
OUT
T4
OUT
EN
T5
OUT
R4
IN
R4
OUT
T1
IN
T2
IN
R2
OUT
R2
IN
16
15
14
13
9
10
11
12
T4
IN
T3
IN
R5
OUT
R5
IN
V
CC
GND
R1
IN
R1
OUT
DIP
MAX235
5k
Ω
910
R1
OUT
R1
IN
R2
IN
R3
IN
R4
IN
R5
IN
5k
Ω
7
15
3
4
T2
IN
T3
OUT
RS-232
OUTPUTS
TTL/CMOS
INPUTS
22
19T5
IN
T5
OUT
+5V
16
1T4
IN
T4
OUT
+5V
2
T3
IN
+5V
+5V
8
T1
IN
T1
OUT
+5V
T2
OUT
T1
T1
R2
R3
R4
R5
T2
T3
T5
T4
400k
Ω
400k
Ω
400k
Ω
400k
Ω
400k
Ω
SHDN
EN
20
12
V
CC
TOP VIEW
Figure 13. MAX235 Pin Configuration and Typical Operating Circuit
MAX220–MAX249
+5V-Powered, Multichannel RS-232
Drivers/Receivers
______________________________________________________________________________________ 23
GND
8
23
R2
OUT
RS-232
INPUTS
TTL/CMOS
OUTPUTS
17
16
21
R3
OUT
R2
IN
R3
IN
5k
Ω
5k
Ω
5
4
R1
OUT
R1
IN
5k
Ω
RS-232
OUTPUTS
TTL/CMOS
INPUTS
R1
R2
R3
2
7
T1
IN
T1
OUT
+5V
T1
400k
Ω
6
3
T2
IN
+5V
T2
OUT
T2
400k
Ω
18
T3
OUT
1
T3
IN
+5V
T3
400k
Ω
19
24
T4
IN
T4
OUT
+5V
T4
400k
Ω
SHDN
EN
20
11
C1+
C1-
1.0
µ
F
10
12
13
14
15
+5V INPUT
C2+
C2-
V
CC
+5V TO +10V
VOLTAGE DOUBLER
9
1.0
µ
F
1.0
µ
F
+10V TO -10V
VOLTAGE INVERTER
22
24
23
22
21
20
19
18
17
1
2
3
4
5
6
7
8
T4
OUT
R2
IN
R2
OUT
SHDNR1
IN
T2
OUT
T1
OUT
T3
OUT
T4
IN
T3
IN
R3
OUT
GND
T1
IN
T2
IN
R1
OUT
16
15
14
13
9
10
11
12
R3
IN
V-
C2-
C2+C1-
V+
C1+
V
CC
DIP/SO
MAX236
EN
1.0
µ
F
1.0
µ
F
TOP VIEW
V+
V-
Figure 14. MAX236 Pin Configuration and Typical Operating Circuit
MAX220–MAX249
+5V-Powered, Multichannel RS-232
Drivers/Receivers
24 ______________________________________________________________________________________
GND
8
23
R2
OUT
RS-232
INPUTS
TTL/CMOS
OUTPUTS
17
16
R3
OUT
R2
IN
R3
IN
5kΩ
5kΩ
5
4
R1
OUT
R1
IN
5kΩ
RS-232
OUTPUTS
TTL/CMOS
INPUTS
R1
R2
R3
2
7
T1
IN
T1
OUT
+5V
T1
400kΩ
6
3
T2
IN
+5V
T2
OUT
T2
400kΩ
18
T3
OUT
1
T3
IN
+5V
T3
400kΩ
21
20
T5
IN
T5
OUT
+5V
T5
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
22
24
23
22
21
20
19
18
17
1
2
3
4
5
6
7
8
T4
OUT
R2
IN
R2
OUT
T5
IN
R1
IN
T2
OUT
T1
OUT
T3
OUT
T4
IN
T3
IN
R3
OUT
GND
T1
IN
T2
IN
R1
OUT
16
15
14
13
9
10
11
12
R3
IN
V-
C2-
C2+C1-
V+
C1+
V
CC
DIP/SO
MAX237
T5
OUT
1.0µF
1.0µF
19
24
T4
IN
T4
OUT
+5V
T4
400kΩ
V+
V-
TOP VIEW
Figure 15. MAX237 Pin Configuration and Typical Operating Circuit
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