M
+5V-Powered, Multichannel RS-232
Drivers/Receivers
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS—MAX220/222/232A/233A/242/243
Supply Voltage (V
CC
)...............................................-0.3V to +6V
Input Voltages
T
IN
..............................................................-0.3V to (V
CC
- 0.3V)
R
IN
(Except MAX220) ........................................................±30V
R
IN
(MAX220).....................................................................±25V
T
OUT
(Except MAX220) (Note 1) .......................................±15V
T
OUT
(MAX220)...............................................................±13.2V
Output Voltages
T
OUT
...................................................................................±15V
R
OUT
.........................................................-0.3V to (V
CC
+ 0.3V)
Driver/Receiver Output Short Circuited to GND.........Continuous
Continuous Power Dissipation (T
A
= +70°C)
16-Pin Plastic DIP (derate 10.53mW/°C above +70°C)....842mW
18-Pin Plastic DIP (derate 11.11mW/°C above +70°C)....889mW
ELECTRICAL CHARACTERISTICS—MAX220/222/232A/233A/242/243
(V
CC
= +5V ±10%, C1–C4 = 0.1μF MAX220, C1 = 0.047μF, C2–C4 = 0.33μF, T
A
= T
MIN
to T
MAX
unless otherwise noted.)
Note 1:
Input voltage measured with T
OUT
in high-impedance state,
SHDN
or V
CC
= 0V.
Note 2:
For the MAX220, V+ and V- can have a maximum magnitude of 7V, but their absolute difference cannot exceed 13V.
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
20-Pin Plastic DIP (derate 8.00mW/°C above +70°C) ..440mW
16-Pin Narrow SO (derate 8.70mW/°C above +70°C)...696mW
16-Pin Wide SO (derate 9.52mW/°C above +70°C)......762mW
18-Pin Wide SO (derate 9.52mW/°C above +70°C)......762mW
20-Pin Wide SO (derate 10.00mW/°C above +70°C)....800mW
20-Pin SSOP (derate 8.00mW/°C above +70°C) ..........640mW
16-Pin CERDIP (derate 10.00mW/°C above +70°C).....800mW
18-Pin CERDIP (derate 10.53mW/°C above +70°C).....842mW
Operating Temperature Ranges
MAX2_ _AC_ _, MAX2_ _C_ _.............................0°C to +70°C
MAX2_ _AE_ _, MAX2_ _E_ _ ..........................-40°C to +85°C
MAX2_ _AM_ _, MAX2_ _M_ _.......................-55°C to +125°C
Storage Temperature Range.............................-65°C to +160°C
Lead Temperature (soldering, 10sec).............................+300°C
V
1.4
1.4
0.8
Input Logic Threshold Low
UNITS
MIN
TYP
MAX
PARAMETER
CONDITIONS
Input Logic Threshold High
All except MAX220
MAX220: V
CC
= 5.0V
2
V
All except MAX220, normal operation
SHDN
= 0V, MAX222/242, shutdown, MAX220
V
CC
= 5.5V,
SHDN
= 0V, V
OUT
= ±15V, MAX222/242
V
CC
=
SHDN
= 0V, V
OUT
= ±15V
All except MAX220, normal operation
V
CC
= V+ = V- = 0V, V
OUT
= ±2V
V
OUT
= 0V
5
40
±1
±10
±10
116
Logic Pull-Up/lnput Current
±0.01
±0.01
±0.01
200
10M
±22
μA
Output Leakage Current
μA
Data Rate
Transmitter Output Resistance
Output Short-Circuit Current
RS-232 RECEIVERS
kb/s
mA
300
±7
RS-232 Input Voltage Operating Range
±30
V
All except MAX243 R2
IN
MAX243 R2
IN
(Note 2)
All except MAX243 R2
IN
MAX243 R2
IN
(Note 2)
0.8
-3
1.3
RS-232 Input Threshold Low
V
CC
= 5V
V
1.8
-0.5
0.5
1
5
0.2
2.4
-0.1
1
RS-232 Input Threshold High
V
CC
= 5V
V
All except MAX243, V
CC
= 5V, no hysteresis in shdn.
MAX243
0.2
RS-232 Input Hysteresis
V
RS-232 Input Resistance
TTL/CMOS Output Voltage Low
TTL/CMOS Output Voltage High
3
7
k
V
V
I
OUT
= 3.2mA
I
OUT
= -1.0mA
Sourcing V
OUT
= GND
Shrinking V
OUT
= V
CC
0.4
3.5
-2
10
V
CC
- 0.2
-10
30
mA
TTL/CMOS Output Short-Circuit Current
V
±5
±8
Output Voltage Swing
All transmitter outputs loaded with 3k
to GND
RS-232 TRANSMITTERS
2.4