AVAILABLE
Functional Diagrams
Pin Configurations appear at end of data sheet.
Functional Diagrams continued at end of data sheet.
UCSP is a trademark of Maxim Integrated Products, Inc.
For pricing, delivery, and ordering information, please contact Maxim Direct
at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.
General Description
The MAX220–MAX249 family of line drivers/receivers is
intended for all EIA/TIA-232E and V.28/V.24 communica-
tions interfaces, particularly applications where ±12V is
not available.
These parts are especially useful in battery-powered sys-
tems, since their low-power shutdown mode reduces
power dissipation to less than 5W. The MAX225,
MAX233, MAX235, and MAX245/MAX246/MAX247 use
no external components and are recommended for appli-
cations where printed circuit board space is critical.
________________________Applications
Portable Computers
Low-Power Modems
Interface Translation
Battery-Powered RS-232 Systems
Multidrop RS-232 Networks
Next-Generation Device Features
For Low-Voltage, Integrated ESD Applications
MAX3222E/MAX3232E/MAX3237E/MAX3241E/
MAX3246E: +3.0V to +5.5V, Low-Power, Up to
1Mbps, True RS-232 Transceivers Using Four
0.1F External Capacitors (MAX3246E Available
in a UCSP Package)
For Low-Cost Applications
MAX221E: ±15kV ESD-Protected, +5V, 1A,
Single RS-232 Transceiver with AutoShutdown
+5V-Powered, Multichannel RS-232
Drivers/Receivers
Selection Table
19-4323; Rev 16; 7/10
PART
MAX220CPE+
MAX220CSE+
MAX220CWE+
0°C to +70°C
TEMP RANGE
PIN-PACKAGE
16 Plastic DIP
16 Narrow SO
16 Wide SO
MAX220C/D
0°C to +70°C
Dice*
MAX220EPE+
MAX220ESE+
MAX220EWE+
-40°C to +85°C
16 Plastic DIP
16 Narrow SO
16 Wide SO
MAX220EJE
-40°C to +85°C
16 CERDIP
MAX220MJE
-55°C to +125°C
16 CERDIP
Power
No. of
Nominal
SHDN
Rx
Part
Supply
RS-232
No. of
Cap. Value & Three- Active in Data Rate
Number
(V)
Drivers/Rx Ext. Caps (F)
State
SHDN
(kbps)
Features
MAX220
+5
2/2
4
0.047/0.33
No
—
120
Ultra-low-power, industry-standard pinout
MAX222
+5
2/2
4
0.1
Yes
—
200
Low-power shutdown
MAX223 (MAX213) +5
4/5
4
1.0 (0.1)
Yes
120
MAX241 and receivers active in shutdown
MAX225
+5
5/5
0
—
Yes
120
Available in SO
MAX230 (MAX200) +5
5/0
4
1.0 (0.1)
Yes
—
120
5 drivers with shutdown
MAX231 (MAX201) +5 and
2/2
2
1.0 (0.1)
No
—
120
Standard +5/+12V or battery supplies;
+7.5 to +13.2
same functions as MAX232
MAX232 (MAX202) +5
2/2
4
1.0 (0.1)
No
—
120 (64)
Industry standard
MAX232A
+5
2/2
4
0.1
No
—
200
Higher slew rate, small caps
MAX233 (MAX203) +5
2/2
0
—
No
—
120
No external caps
MAX233A
+5
2/2
0
—
No
—
200
No external caps, high slew rate
MAX234 (MAX204) +5
4/0
4
1.0 (0.1)
No
—
120
Replaces 1488
MAX235 (MAX205) +5
5/5
0
—
Yes
—
120
No external caps
MAX236 (MAX206) +5
4/3
4
1.0 (0.1)
Yes
—
120
Shutdown, three state
MAX237 (MAX207) +5
5/3
4
1.0 (0.1)
No
—
120
Complements IBM PC serial port
MAX238 (MAX208) +5
4/4
4
1.0 (0.1)
No
—
120
Replaces 1488 and 1489
MAX239 (MAX209) +5 and
3/5
2
1.0 (0.1)
No
—
120
Standard +5/+12V or battery supplies;
+7.5 to +13.2
single-package solution for IBM PC serial port
MAX240
+5
5/5
4
1.0
Yes
—
120
DIP or flatpack package
MAX241 (MAX211) +5
4/5
4
1.0 (0.1)
Yes
—
120
Complete IBM PC serial port
MAX242
+5
2/2
4
0.1
Yes
200
Separate shutdown and enable
MAX243
+5
2/2
4
0.1
No
—
200
Open-line detection simplifies cabling
MAX244
+5
8/10
4
1.0
No
—
120
High slew rate
MAX245
+5
8/10
0
—
Yes
120
High slew rate, int. caps, two shutdown modes
MAX246
+5
8/10
0
—
Yes
120
High slew rate, int. caps, three shutdown modes
MAX247
+5
8/9
0
—
Yes
120
High slew rate, int. caps, nine operating modes
MAX248
+5
8/8
4
1.0
Yes
120
High slew rate, selective half-chip enables
MAX249
+5
6/10
4
1.0
Yes
120
Available in quad flatpack package
Ordering Information
+
Denotes a lead(Pb)-free/RoHS-compliant package.
*
Contact factory for dice specifications.
Ordering Information continued at end of data sheet.
AutoShutdown and UCSP are trademarks of Maxim Integrated
Products, Inc.
MAX220–MAX249
Selection Table