MAX240CMH-T Maxim Integrated, MAX240CMH-T Datasheet - Page 29

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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 20. MAX244 Pin Configuration and Typical Operating Circuit
RA1OUT
RA2OUT
RA3OUT
RA4OUT
RA5OUT
RA3IN
RA2IN
RA1IN
TA1IN
TA2IN
TA3IN
TOP VIEW
10
11
12
13
14
15
16
17
8
7
9
MAX249 FUNCTIONAL DESCRIPTION
10 RECEIVERS
8 TRANSMITTERS
NO CONTROL PINS
5 A-SIDE RECEIVERS
5 B-SIDE RECEIVERS
4 A-SIDE TRANSMITTERS
4 B-SIDE TRANSMITTERS
18
6
19 20
5
4
21
3
MAX244
22 23
2
PLCC
+
1
+5V-Powered, Multichannel RS-232
44
24
43
25
42
26
41
27 28
40
39
38
37
36
35
34
33
32
31
30
29
RB4IN
RB3IN
RB2IN
RB1IN
RB1OUT
RB2OUT
RB3OUT
RB4OUT
RB5OUT
TB1IN
TB2IN
1μF
1μF
21
23
24
25
16
17
18
10 RA1OUT
11 RA2OUT
12 RA3OUT
13 RA4OUT
14
15
2
3
4
9 RA1IN
8 RA2IN
7 RA3IN
6 RA4IN
5 RA5IN
2
C1+
C1-
C2+
C2-
TA1OUT
TA1IN
TA2OUT
TA2IN
TA3OUT
TA3IN
TA4OUT
TA4IN
RA5OUT
5kΩ
5kΩ
5kΩ
5kΩ
5kΩ
MAX220–MAX249
MAX220–MAX249
Drivers/Receivers
+10V TO -10V VOLTAGE INVERTER
1μF
+5V TO +10V VOLTAGE DOUBLER
+5V
+5V
+5V
+5V
400kΩ
400kΩ
400kΩ
400kΩ
GND
+5V
V
CC
19
20
+5V
+5V
+5V
+5V
1μF
5kΩ
5kΩ
5kΩ
5kΩ
5kΩ
RB1OUT
RB2OUT
RB3OUT
RB4OUT
RB5OUT
TB1OUT
TB2OUT
TB3OUT
TB4OUT
RB1IN
RB2IN
RB3IN
RB4IN
RB5IN
TB1IN
TB2IN
TB3IN
TB4IN
V+
V-
22
26
43
29
42
28
41
27
36
35
37
34
38
33
39
32
40
31
1μF
44
30
29