MAX239 Maxim Integrated Products, MAX239 Datasheet - Page 19

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

Figure 8. MAX223/MAX241 Pin Configuration and Typical Operating Circuit
*R4 AND R5 IN MAX223 REMAIN ACTIVE IN SHUTDOWN
NOTE: PIN LABELS IN ( ) ARE FOR MAX241
TOP VIEW
R2
R1
T3
T1
T2
______________________________________________________________________________________
GND
R2
R1
T2
T1
V
C1+
OUT
OUT
OUT
OUT
OUT
C1-
V+
CC
IN
IN
IN
IN
10
11
12
13
14
1
2
3
4
5
6
7
8
9
Wide SO/
MAX223
MAX241
SSOP
+5V-Powered, Multichannel RS-232
28
27
26
25
24
23
22
21
20
19
18
17
16
15
T4
R3
R3
SHDN (SHDN)
EN (EN)
R4
R4
T4
T3
R5
R5
V-
C2-
C2+
OUT
IN
IN
IN
OUT
IN*
OUT*
OUT*
IN*
TTL/CMOS
OUTPUTS
INPUTS
LOGIC
1.0µF
1.0µF
12
14
15
16
20
21 T4
26
22
19
24
7 T1
6
8
5
C1+
C1-
C2+
C2-
EN (EN)
T2
T3
R1
R2
R3
R4
R5
Drivers/Receivers
IN
IN
IN
IN
OUT
OUT
OUT
OUT
OUT
+5V
+5V
+5V
+5V
1.0µF
VOLTAGE DOUBLER
VOLTAGE INVERTER
400kΩ
400kΩ
400kΩ
400kΩ
+10V TO -10V
+5V TO +10V
+5V INPUT
V
GND
CC
R1
R2
R3
R4
R5
T1
T2
T3
T4
11
10
5kΩ
5kΩ
5kΩ
5kΩ
5kΩ
(SHDN)
T2
T3
SHDN
T1
T4
R3
R4
R5
R1
R2
OUT
OUT
OUT
OUT
V+
V-
IN
IN
IN
IN
IN
13
17
2
3
1
28
9
4
27
23
18
25
1.0µF
1.0µF
RS-232
OUTPUTS
RS-232
INPUTS
19