MAX238CNG+ Maxim Integrated Products, MAX238CNG+ Datasheet - Page 11

• Manufacturer Part Number: MAX238CNG+
• Description: IC 4DVR/4RCVR RS232 5V 24-DIP
• Manufacturer: Maxim Integrated Products
• Type: Transceiverr

Specifications of MAX238CNG+

• Number Of Drivers/receivers: 4/4
• Protocol: RS232
• Voltage - Supply: 4.5 V ~ 5.5 V
• Mounting Type: Through Hole
• Package / Case: 24-DIP (0.300", 7.62mm)
• Package: 24PDIP N
• Data Transmission Topology: Point-to-Point
• Interface Standards: EIA/TIA-232-E|RS-232|V.24|V.28
• Data Rate: 0.12 Mbps
• Function: Line Transmitter/Receiver
• Number Of Transmitters: 4
• Transmitter Signal Type: Single-Ended
• Transmitter Communication Type: RS-232
• Typical Single Supply Voltage: 5 V
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 4.5 V
• Maximum Operating Temperature: + 70 C
• Mounting Style: Through Hole
• Interface: RS-232
• Maximum Power Dissipation: 500 mW
• Minimum Operating Temperature: 0 C
• Supply Current: 7 mA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Figure 1. Transmitter Propagation-Delay Timing
Figure 3. Receiver-Output Enable and Disable Timing
INPUT
OUTPUT
b) ENABLE TIMING
c) DISABLE TIMING
a) TEST CIRCUIT
t
PLHT
+3V
RECEIVER
RECEIVER
EN INPUT
OUTPUTS
EN INPUT
OUTPUTS
R
X
V
V
EN
OH
IN
OL
______________________________________________________________________________________
+3V
0V
R
X
R
X
0V
OUT
150pF
+3V
0V
1kΩ
+5V-Powered, Multichannel RS-232
OUTPUT DISABLE TIME (t
OUTPUT ENABLE TIME (t
V
V
+3.5V
+0.8V
OH
OL
+ 0.5V
- 0.5V
EN
EN
V
V
CC
CC
- 2V
- 2V
t
PHLT
ER
DR
V+
0V
V-
)
)
Figure 2. Receiver Propagation-Delay Timing
Figure 4. Transmitter-Output Disable Timing
OUTPUT
*EXCEPT FOR R2 ON THE MAX243
INPUT
WHERE -3V IS USED.
t
t
PHLR
PHLS
Test Circuits/Timing Diagrams
SHDN
1 OR 0
b) TEST CIRCUIT
a) TIMING DIAGRAM
V+
V-
0V*
Drivers/Receivers
+3V
T
X
50%
50%
+3V
0V
3kΩ
+5V
-5V
OUTPUT DISABLE TIME (t
50pF
0V
50%
50%
GND
t
t
DT
PLHR
PLHS
)
V
CC
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