MAX235EDG Maxim Integrated, MAX235EDG Datasheet - Page 28

• Manufacturer Part Number: MAX235EDG
• 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

Specifications of MAX235EDG

• Data Rate: 120 Kbps
• Operating Supply Voltage: 5 V
• Supply Current: 15 mA
• Operating Temperature Range: 0 C to + 70 C
• Function: Transceiver
• 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
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