MAX240CMH-T Maxim Integrated, MAX240CMH-T Datasheet - Page 17

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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
Maxim Integrated
Figure 5. MAX220/MAX232/MAX232A Pin Configuration and Typical Operating Circuit
Figure 6. MAX222/MAX242 Pin Configurations and Typical Operating Circuit
TOP VIEW
(N.C.) EN
T2OUT
R2IN
( ) ARE FOR MAX222 ONLY.
PIN NUMBERS IN TYPICAL OPERATING CIRCUIT ARE FOR DIP/SO PACKAGES ONLY.
C1+
C2+
C1-
C2-
V+
V-
TOP VIEW
1
2
3
4
5
6
7
9
8
+
MAX222
MAX242
DIP/SO
T2OUT
DEVICE
MAX220
MAX232
MAX232A
R2IN
C1+
C2+
C1-
C2-
V+
V-
1
2
3
4
5
6
7
8
CAPACITANCE (μF)
18
17
16
15
14
13
12
11
10
0.047
+
C1
1.0
0.1
MAX232A
SHDN
V
GND
T1OUT
R1IN
R1OUT
T2IN
R2OUT
T1IN
DIP/SO
MAX220
MAX232
CC
+5V-Powered, Multichannel RS-232
0.33
1.0
0.1
C2
(N.C.) EN
0.33
1.0
0.1
C3
R2OUT
T2OUT
R2IN
C1+
C2+
C1-
C2-
V+
V-
0.33
C4
1.0
0.1
16
15
14
13
12
11
10
9
10
1
2
3
4
5
6
7
9
8
0.33
1.0
0.1
V
GND
T1OUT
R1IN
R1OUT
T1IN
T2IN
R2OUT
C5
+
CC
MAX222
MAX242
SSOP
20
19
18
17
16
15
14
13
12
11
SHDN
V
GND
T1OUT
N.C.
R1IN
R1OUT
N.C.
T1IN
T2IN
CC
TTL/CMOS
TTL/CMOS
OUTPUTS
INPUTS
TTL/CMOS
TTL/CMOS
OUTPUTS
INPUTS
C1
C2
MAX220–MAX249
MAX220–MAX249
C1
C2
Drivers/Receivers
11
10
12
1
3
4
5
9
C1+
C1-
C2+
C2-
T1IN
T2IN
R1OUT
R2OUT
12
11
13
10
400kΩ
400kΩ
1
2
4
5
6
C5
+5V
(N.C.)
+5V
C1+
C1-
C2+
C2-
T1IN
T2IN
R1OUT
R2OUT
VOLTAGE INVERTER
400kΩ
400kΩ
VOLTAGE DOUBLER
C5
+5V
+5V
+10V TO -10V
+5V TO +10V
VOLTAGE INVERTER
VOLTAGE DOUBLER
EN
+5V INPUT
+10V TO -10V
V
GND
+5V TO +10V
CC
(EXCEPT MAX220)
(EXCEPT MAX220)
GND
+5V INPUT
16
V CC
15
17
16
5kΩ
5kΩ
T1OUT
T2OUT
R1IN
R2IN
5kΩ
5kΩ
T1OUT
T2OUT
C3
V+
V-
SHDN
C3
R1IN
R2IN
V+
V-
14
13
6
7
8
2 +10V
ALL CAPACITORS = 0.1μF
15
8
14
9
18
7
3 +10V
-10V
C4
RS-232
OUTPUTS
RS-232
INPUTS
-10V
C4
RS-232
OUTPUTS
RS-232
INPUTS
17