MAX234EJE Maxim Integrated, MAX234EJE Datasheet - Page 28
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MAX234EJE
Manufacturer Part Number
MAX234EJE
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
1.MAX220CD.pdf
(38 pages)
Specifications of MAX234EJE
Data Rate
120 Kbps
Operating Supply Voltage
5 V
Supply Current
15 mA
Operating Temperature Range
0 C to + 70 C
Function
Transmitter
Number Of Drivers
4
Number Of I/os
8
Propagation Delay Time Ns
10 us
Shutdown
No
MAX220–MAX249
MAX220–MAX249
28
+5V-Powered, Multichannel RS-232
Drivers/Receivers
Figure 19. MAX243 Pin Configuration and Typical Operating Circuit
TOP VIEW
T2OUT
R2IN
C1+
C2+
C1-
C2-
V+
V-
1
2
3
4
5
6
7
8
+
MAX243
DIP/SO
RECEIVER INPUT
≥ +3V
≤ -3V
OPEN
16
15
14
13
12
11
10
9
V
GND
T1OUT
R1IN
R1OUT
T1IN
T2IN
R2OUT
CC
R1 OUTPUT
HIGH
HIGH
LOW
R2 OUTPUT
HIGH
LOW
LOW
TTL/CMOS
TTL/CMOS
OUTPUTS
INPUTS
0.1μF
0.1μF
11
10
12
1
3
4
5
9
C1+
C1-
C2+
C2-
T1IN
T2IN
R1OUT
R2OUT
0.1μF
+5V
+5V
VOLTAGE INVERTER
VOLTAGE DOUBLER
+10V TO -10V
+5V TO +10V
400kΩ
400kΩ
+5V INPUT
GND
V
CC
15
16
5kΩ
5kΩ
T1OUT
T2OUT
0.1μF
R1IN
R2IN
V+
V-
2
6
14
7
13
8
-10V
+10V
0.1μF
RS-232
OUTPUTS
Maxim Integrated
RS-232
INPUTS