MAX240CMH-T Maxim Integrated, MAX240CMH-T Datasheet - Page 20

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MAX240CMH-T

Manufacturer Part Number
MAX240CMH-T
Description
RS-232 Interface IC
Manufacturer
Maxim Integrated
Series
MAX220, MAX222, MAX223, MAX225, MAX230, MAX231, MAX232, MAX232A, MAX233, MAX233A, MAX234, MAX235, MAX236, MAX237, MAX238, MAX239, MAX240, MAX241, MAX242, MAX243, MAX244, MAX245, MAX246, MAX247, MAX248, MAX249r
Datasheet

Specifications of MAX240CMH-T

Data Rate
120 Kbps
Operating Supply Voltage
5 V
Supply Current
15 mA
Operating Temperature Range
0 C to + 70 C
Mounting Style
SMD/SMT
Function
Transceiver
Maximum Operating Temperature
+ 70 C
Minimum Operating Temperature
0 C
Number Of Drivers
5
Number Of I/os
20
Number Of Receivers
5
Propagation Delay Time Ns
10 us
Shutdown
Yes
MAX220–MAX249
MAX220–MAX249
20
+5V-Powered, Multichannel RS-232
Drivers/Receivers
Figure 9. MAX230 Pin Configuration and Typical Operating Circuit
Figure 10. MAX231 Pin Configurations and Typical Operating Circuit
R2OUT
TOP VIEW
T2OUT
R2IN
T2IN
C+
C-
V-
PIN NUMBERS IN ( ) ARE FOR SO PACKAGE.
1
4
5
6
7
2
3
+
MAX231
T3OUT
TOP VIEW
T1OUT
T2OUT
DIP
T2IN
T1IN
GND
V
C1+
C1-
CC
V+
10
1
2
3
4
5
6
7
8
9
+
14
13
12
11
10
9
8
DIP/SO
MAX230
V+
V
GND
T1OUT
R1IN
R1OUT
T1IN
CC
R2OUT
T2OUT
R2IN
T2IN
N.C.
C+
C-
V-
20
19
18
17
16
14
13
12
15
11
1
2
3
4
5
6
7
8
T5IN
T5OUT
T4IN
V-
T4OUT
N.C.
SHDN
T3IN
C2-
C2+
+
MAX231
SO
16
15
14
13
12
11
10
9
V+
V
GND
T1OUT
R1IN
R1OUT
T1IN
N.C.
CC
TTL/CMOS
INPUTS
1.0μF
1.0μF
TTL/CMOS
TTL/CMOS
OUTPUTS
INPUTS
N.C.
1.0μF
x
14
15
19
18
10
11
12
8
5
4
(11)
C1+
C1-
C2+
C2-
T1IN
T2IN
T3IN
T4IN
T5IN
(10)
8
7
+5V
+5V
+5V
+5V
+5V
9
6
1
2
1.0μF
VOLTAGE INVERTER
C1+
C1-
T1IN
R2OUT
T2IN
R1OUT
VOLTAGE DOUBLER
+10V TO -10V
+5V
+5V
400kΩ
+5V TO +10V
400kΩ
400kΩ
400kΩ
400kΩ
1.0μF
+5V INPUT
V CC
GND
T2
T3
T4
T5
VOLTAGE CONVERTER
T1
7
400kΩ
400kΩ
6
+12V TO -12V
+5V INPUT
T1OUT
T2OUT
T3OUT
T4OUT
T5OUT
GND
T1
T2
V
CC
R1
R2
13 (15)
V+
V-
12 (14)
16
2
3
1
20
17
13
9
SHDN
5kΩ
1.0μF
1.0μF
RS-232
OUTPUTS
T1OUT
T2OUT
5kΩ
R1IN
R2IN
V+
V-
+7.5V TO +12V
14
3
11
4
10
5
Maxim Integrated
(12)
(13)
(16)
1.0μF
C2
RS-232
OUTPUTS
RS-232
INPUTS