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MAX232 Datasheet

Multichannel RS-232 Drivers/Receivers

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MAX232 pdf
MAX220–MAX249
+5V-Powered, Multichannel
RS-232 Drivers/Receivers
TOP VIEW
+
T3OUT 1
T1OUT 2
T2OUT 3
T2IN 4
T1IN 5
MAX230
GND 6
VCC 7
C1+ 8
V+ 9
C1- 10
20 T4OUT
19 T5IN
18 N.C.
17 SHDN
16 T5OUT
15 T4IN
14 T3IN
13 V-
12 C2-
11 C2+
DIP/SO
+5V INPUT
1.0μF
1.0μF
1.0μF
TTL/CMOS
INPUTS
8 C1+
10 C1-
11 C2+
12
C2-
7
VCC
+5V TO +10V
V+
VOLTAGE DOUBLER
+10V TO -10V
VOLTAGE INVERTER V-
9
13
+5V
5 T1IN
+5V
4 T2IN
+5V
14 T3IN
+5V
15 T4IN
+5V
19 T5IN
400kΩ
T1
400kΩ
T2
400kΩ
T3
400kΩ
T4
400kΩ
T5
T1OUT 2
T2OUT 3
T3OUT 1
T4OUT 20
T5OUT 16
1.0μF
1.0μF
RS-232
OUTPUTS
N.C.x 18
GND
6
17 SHDN
Figure 9. MAX230 Pin Configuration and Typical Operating Circuit
TOP VIEW
+
C+ 1
C- 2
V- 3
T2OUT 4 MAX231
R2IN 5
R2OUT 6
T2IN 7
DIP
14 V+
+
C+ 1
13 VCC
12 GND
C- 2
V- 3
11 T1OUT T2OUT 4
MAX231
10 R1IN R2IN 5
9 R1OUT R2OUT 6
8 T1IN
T2IN 7
N.C. 8
SO
PIN NUMBERS IN ( ) ARE FOR SO PACKAGE.
1.0μF
+5V INPUT
+7.5V TO +12V
16 V+
15 VCC
14 GND
13 T1OUT
12 R1IN
11 R1OUT
10 T1IN
9 N.C.
1.0μF
1
C1+
2
C1-
+5V
(10)
8 T1IN
TTL/CMOS
INPUTS
+5V
7 T2IN
(11) 9 R1OUT
TTL/CMOS
OUTPUTS
6 R2OUT
13 (15)
VCC
+12V TO -12V
VOLTAGE CONVERTER
V+ 14
3
V-
(16)
C2
1.0μF
400kΩ
T1
(13)
T1OUT 11
400kΩ
T2
R1
R2
T2OUT 4
RS-232
OUTPUTS
R1IN 10 (12)
5kΩ
R2IN 5
5kΩ
RS-232
INPUTS
GND
12 (14)
Figure 10. MAX231 Pin Configurations and Typical Operating Circuit
www.maximintegrated.com
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Maxim


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