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400k
R1OUT 8 21 T4IN
21 T4IN T4OUT 28
T4
R1IN 9 20 T3IN
GND 10 19 R5OUT*
8 R1OUT R1IN 9
VCC 11 18 R5IN* R1
5k
C1+ 12 17 V-
V+ 13 16 C2-
R2IN 4
5 R2OUT
R2
C1- 14 15 C2+
5k
Wide SO/
SSOP
26
R3OUT R3IN 27 RS-232
LOGIC
R3
INPUTS
OUTPUTS
5k
22 R4OUT R4IN 23
R4
5k
19 R5OUT R5IN
18
R5
*R4 AND R5 IN MAX223 REMAIN ACTIVE IN SHUTDOWN
5k
25
SHDN
NOTE: PIN LABELS IN ( ) ARE FOR MAX241 24 EN (EN)
(SHDN)
GND
10
Figure 8. MAX223/MAX241 Pin Configuration and Typical Operating Circuit
______________________________________________________________________________________ 19
+5V-Powered, Multichannel RS-232
Drivers/Receivers
+5V INPUT
TOP VIEW
1.0F
7
1.0F
8
VCC V+ 9
C1+
10 +5V TO +10V
1.0F
C1-
VOLTAGE DOUBLER
T3OUT 1 T4OUT
20
11
C2+ +10V TO -10V
13
T1OUT 2 T5IN 12
19 1.0F V-
VOLTAGE INVERTER
C2-
1.0F
T2OUT 3
N.C. +5V
18
400k
T2IN 4
SHDN
17
5 T1IN T1OUT 2
T1
T1IN 5 MAX230
T5OUT
16 +5V
400k
GND
6 15 T4IN
T2IN T2OUT 3
4
T2
VCC 7
14 T3IN +5V
400k
C1+
8 13 V-
T3IN T3OUT 1 RS-232
TTL/CMOS 14
T3
INPUTS OUTPUTS
V+ C2- +5V
9 12
400k
C1-
C2+
10 11
T4IN T4OUT 20
15
T4
+5V
400k
DIP/SO
19 T5IN T5OUT 16
T5
18 17
N.C.x SHDN
GND
6
Figure 9. MAX230 Pin Configuration and Typical Operating Circuit
+5V INPUT
TOP VIEW +7.5V TO +12V
1.0F
13 (15)
1
14
(16)
VCC
C1+ V+
3
+12V TO -12V
2
1.0F
V-
C1-
VOLTAGE CONVERTER
C2
1.0F
+5V
C+ V+
C+ 1 14 V+ 1
16
400k
(10) (13)
VCC
C- 2 13 VCC C- 2
15
T1OUT 11
8 T1IN
T1
V- 3
GND
V- 3 12 GND 14
+5V
TTL/CMOS
RS-232
T1OUT INPUTS
T2OUT 4 MAX231 11 T1OUT T2OUT 4 MAX231 13
400k
OUTPUTS
R1IN
R2IN 5 10 R1IN R2IN 5 12 T2OUT 4
7 T2IN
T2
R1OUT
R2OUT 6 9 R1OUT R2OUT 6 11
(11) (12)
R1OUT R1IN 10
9
T1IN R1
T2IN 7 8 T1IN T2IN 7 10
TTL/CMOS
N.C. 8 9 N.C. 5k RS-232
INPUTS
INPUTS
DIP
SO R2OUT R2IN 5
6
R2
5k
GND
PIN NUMBERS IN ( ) ARE FOR SO PACKAGE
12 (14)
Figure 10. MAX231 Pin Configurations and Typical Operating Circuit
20 ______________________________________________________________________________________
1
T
+5V-Powered, Multichannel RS-232
Drivers/Receivers
+5V INPUT
1.0F
TOP VIEW
7
VCC
+5V
400k
T1OUT 5
2 T1IN
T2IN 1 R2OUT
20
+5V
TTL/CMOS
T1IN 2 R2IN
19
RS-232
400k
INPUTS
OUTPUTS
R1OUT 3
T2OUT
18
T2OUT
1 T2IN 18
R1IN 4
V-
17
R1OUT
R1IN 4
3
T1OUT 5 MAX233
C2-
16
MAX233A
5k
GND TTL/CMOS
6 15 C2+
RS-232
OUTPUTS
OUTPUTS
VCC 7
14 V+ (C1-)
R2OUT R2IN 19
20
(V+) C1+
8 13 C1- (C1+)
8 (13) 11 (12)
GND V- (C2+) 5k
9 12
C1+
DO NOT MAKE C2+
CONNECTIONS TO
13 (14)
15
(V-) CS-
C2+ (C2-)
10 11 C1-
THESE PINS C2+
12 (10)
16
V-
C2-
INTERNAL -10
POWER SUPPLY 17 10 (11)
DIP/SO V-
C2-
14 (8)
INTERNAL +10V
V+
GND GND
POWER SUPPLY
6 9
( ) ARE FOR SO PACKAGE ONLY.
Figure 11. MAX233/MAX233A Pin Configuration and Typical Operating Circuit
+5V INPUT
1.0F
TOP VIEW
6
1.0F
7
VCC
C1+ 8
+5V TO +10V V+
1.0F
9
C1- VOLTAGE DOUBLER
10
C2+
+10V TO -10V
12
V-
VOLTAGE INVERTER
1.0F
11
T1OUT 1 T3OUT C2- 1.0F
16
+5V
T2OUT 2 T4OUT
15
400k
T2IN 3 T4IN
14
T1IN T1OUT 1
4
T1
T3IN
T1IN 4 MAX234 13
+5V
V-
GND 5 12 400k
T2IN T2OUT
3 3
VCC 6 C2-
11
T2
+5V
RS-232
C1+ C2+ TTL/CMOS
7 10
OUTPUTS
INPUTS 400k
V+ 8 9 C1-
13 T3IN T3OUT 16
T3
+5V
DIP/SO
400k
14 T4IN T4OUT 15
T4
GND
5
Figure 12. MAX234 Pin Configuration and Typical Operating Circuit
______________________________________________________________________________________ 21
+5V-Powered, Multichannel RS-232
Drivers/Receivers
+5V INPUT
TOP VIEW
1.0F
12
VCC
+5V
400k
8 T1IN T1OUT
3
T1
+5V
400k
T2OUT 4
7 T2IN
T2
+5V
400k
TTL/CMOS 15 T3IN T3OUT 2
RS-232
T3
INPUTS OUTPUTS
+5V
T4OUT 1 24 R3IN
400k
T3OUT 2 23 R3OUT
16 T4IN T4OUT 1
T4
T1OUT 3 22 T5IN
+5V
T2OUT 4 21 SHDN
400k
MAX235
R2IN 5 20 EN
22 T5IN T5OUT 19
T5
R2OUT 6 19 T5OUT
T2IN 7 18 R4IN
R1IN
9 R1OUT 10
T1
T1IN 8 17 R4OUT
5k
R1OUT 9 16 T4IN
R1IN 10 15 T3IN
R2IN
6 R2OUT 5
R2
GND 11 14 R5OUT
5k
VCC 12 13 R5IN
23 R3OUT R3IN 24
TTL/CMOS
RS-232
R3
DIP
OUTPUTS
INPUTS
5k
17 R4OUT R4IN 18
R4
5k
14 R5OUT
R5IN 13
R5
5k
20 EN
21
SHDN
GND
11
Figure 13. MAX235 Pin Configuration and Typical Operating Circuit
22 ______________________________________________________________________________________
+5V-Powered, Multichannel RS-232
Drivers/Receivers
TOP VIEW +5V INPUT
1.0F
9
1.0F
10
11
C1+ VCC
V+
+5V TO +10V
1.0F
12
C1- VOLTAGE DOUBLER
13 15
C2+
V-
+10V TO -10V
1.0F
1.0F
14
C2- VOLTAGE INVERTER
+5V
400k
7 T1IN T1OUT
2
T1
T3OUT 1 24 T4OUT
+5V
400k
T1OUT 2 23 R2IN
T2OUT 3
6 T2IN
T2
T2OUT 3 22 R2OUT
R1IN 4 21 SHDN TTL/CMOS
RS-232
+5V
INPUTS OUTPUTS
400k
MAX236
R1OUT 5 20 EN
18 T3IN T3OUT 1
T3
T2IN 6 19 T4IN
T1IN 7 18 T3IN +5V
400k
GND 8 17 R3OUT
19 T4IN T4OUT 24
T4
VCC 9 16 R3IN
C1+ 10 15 V-
V+ 11 14 C2-
R1IN 4
5 R1OUT
R1
C1- 12 13 C2+
5k
DIP/SO
22
R2OUT R2IN 23
RS-232
TTL/CMOS
R2
INPUTS
OUTPUTS
5k
17 R3OUT R3IN 16
R3
5k [ Pobierz całość w formacie PDF ]

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