MAX240CMH-T Maxim Integrated, MAX240CMH-T Datasheet - Page 18

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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
18
+5V-Powered, Multichannel RS-232
Drivers/Receivers
Figure 7. MAX225 Pin Configuration and Typical Operating Circuit
TOP VIEW
MAX225 FUNCTIONAL DESCRIPTION
5 RECEIVERS
5 TRANSMITTERS
2 CONTROL PINS
PINS (ENR, GND, V
CONNECT EITHER OR BOTH EXTERNALLY. T5OUT IS A SINGLE DRIVER.
1 RECEIVER ENABLE (ENR)
1 TRANSMITTER ENABLE (ENT)
R1OUT
R2OUT
R3OUT
T1OUT
T2OUT
CC
R3IN
R2IN
R1IN
T1IN
T2IN
GND
GND
ENR
ENR
, T5OUT) ARE INTERNALLY CONNECTED.
10
11
12
13
14
1
2
3
4
5
6
7
8
9
+
MAX225
SO
27
28
26
25
24
23
22
21
20
19
18
17
16
15
V
V
ENT
T3IN
T4IN
T5IN
R4OUT
R5OUT
R5IN
R4IN
T3OUT
T4OUT
T5OUT
T5OUT
CC
CC
22
21
25
24
23
26
7
3
4
5
6
1
2
ENR
ENR
T1IN
T2IN
T3IN
T4IN
T5IN
ENT
R1OUT
R2OUT
R3OUT
R4OUT
R5OUT
0.1μF
+5V
+5V
+5V
+5V
+5V
400kΩ
400kΩ
400kΩ
400kΩ
400kΩ
13
V
GND
CC
28
+5V
GND
V
CC
14
27
5kΩ
5kΩ
5kΩ
5kΩ
5kΩ
T1OUT
T2OUT
T3OUT
T4OUT
T5OUT
T5OUT
R1IN
R2IN
R3IN
R4IN
R5IN
Maxim Integrated
11
12
18
17
16
15
10
9
8
19
20