MAX220MJE Maxim Integrated, MAX220MJE Datasheet - Page 11
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MAX220MJE
Manufacturer Part Number
MAX220MJE
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 MAX220MJE
Data Rate
120 Kbps
Operating Supply Voltage
5 V
Supply Current
0.5 mA
Operating Temperature Range
0 C to + 70 C
Number Of I/os
2/2
Propagation Delay Time Ns
4 us, 0.6 us
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Maxim Integrated
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
OUTPUTS
RECEIVER
OUTPUTS
EN INPUT
EN INPUT
R
V
X
V
EN
OH
OL
IN
+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*
MAX220–MAX249
MAX220–MAX249
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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