+5V-Powered, Multichannel
RS-232 Drivers/Receivers
MAX220–MAX249
Ordering Information (continued)
PART
MAX247CPL+ 0°C to +70°C 40 Plastic DIP
MAX247C/D 0°C to +70°C Dice*
TEMP RANGE PIN-PACKAGE
MAX247EPL+ -40°C to +85°C 40 Plastic DIP
MAX248CQH+ 0°C to +70°C 44 PLCC
MAX248C/D
0°C to +70°C Dice*
MAX248EQH+ -40°C to +85°C 44 PLCC
MAX249CQH+ 0°C to +70°C 44 PLCC
MAX249EQH+ -40°C to +85°C 44 PLCC
+Denotes a lead(Pb)-free/RoHS-compliant packageꢂ
*Contact factory for dice specificationsꢂ
Selection Table
No. of
SHDN
&
Three- in
State SHDN
Rx
Active
Power
Supply
(V)
No. of
Ext.
Caps
Nominal
Cap. Value
(+F)
Data
Part
Number
RS-232
Drivers
/Rx
Rate
Features
(kbps)
MAX220
MAX222
MAX223
MAX225
MAX230
MAX231
+5
+5
+5
+5
2/2
2/2
4/5
5/5
5/0
2/2
4
4
4
0
4
2
0.047, 0.33 No
No
No
Yes
Yes
No
120
200
120
120
120
120
Ultra-low-power, industry-standard pinout
Low-power shutdown
MAX241 and receivers active in shutdown
Available in SO
5 drivers with shutdown
Standard +5/+12V or battery supplies;
same functions as MAX232
0.1
1.0, 0.1
—
1.0, 0.1
1.0, 0.1
Yes
Yes
Yes
Yes
No
+5
+5 and
+7.5 to
+5
No
MAX232
2/2
2/2
2/2
2/2
4/0
5/5
4/3
5/3
4/4
3/5
4
4
0
0
4
0
4
4
4
2
1.0, 0.1
0.1
—
—
1.0, 0.1
—
1.0, 0.1
1.0, 0.1
1.0, 0.1
1.0, 0.1
No
No
No
No
No
Yes
Yes
No
No
No
No
No
No
No
No
No
No
No
No
No
120 (64) Industry standard
MAX232A +5
MAX233 +5
MAX233A +5
MAX234
MAX235
MAX236
MAX237
MAX238
MAX239
200
120
200
120
120
120
120
120
120
Higher slew rate, small caps
No external caps
No external caps, high slew rate
Replaces 1488
No external caps
Shutdown, three state
Complements IBM PC serial port
Replaces 1488 and 1489
Standard +5/+12V or battery supplies;
single-package solution for IBM PC serial
DIP or flatpack package
Complete IBM PC serial port
Separate shutdown and enable
Open-line detection simplifies cabling
High slew rate
+5
+5
+5
+5
+5
+5 and
+7.5 to
+5
+5
+5
+5
+5
+5
+5
MAX240
MAX241
MAX242
MAX243
MAX244
MAX245
MAX246
MAX247
MAX248
MAX249
5/5
4/5
2/2
2/2
8/10
8/10
8/10
8/9
8/8
6/10
4
4
4
4
4
0
0
0
4
4
1.0
1.0, 0.1
0.1
0.1
1.0
—
—
—
1.0
1.0
Yes
Yes
Yes
No
No
No
Yes
No
No
Yes
Yes
Yes
Yes
Yes
120
120
200
200
120
120
120
120
120
120
No
High slew rate, int. caps, two shutdown
High slew rate, int. caps, three shutdown
High slew rate, int. caps, nine operating
High slew rate, selective half-chip enables
Available in quad flatpack package
Yes
Yes
Yes
Yes
Yes
+5
+5
+5
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