±9-4323; Rev ±6; 7/±0
+5V-Powered, Multichannel RS-232
Drivers/Receivers
0–MAX249
General Description
Next-Generation Device Features
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 ±±2V is
not available.
♦ 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
0.1µF External Capacitors (MAX3246E Available
in a UCSP™ Package)
These parts are especially useful in battery-powered sys-
tems, since their low-power shutdown mode reduces
power dissipation to less than 5µW. 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.
♦ For Low-Cost Applications
MAX221E: 15kV ESD-Protected, +5V, 1µA,
Single RS-232 Transceiver with AutoShutdown™
Ordering Information
________________________Applications
PART
TEMP RANGE
0°C to +70°C
PIN-PACKAGE
±6 Plastic DIP
±6 Narrow SO
±6 Wide SO
Dice*
MAX220CPE+
MAX220CSE+
MAX220CWE+
MAX220C/D
MAX220EPE+
MAX220ESE+
MAX220EWE+
MAX220EJE
MAX220MJE
Portable Computers
0°C to +70°C
0°C to +70°C
0°C to +70°C
Low-Power Modems
Interface Translation
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-55°C to +±25°C
±6 Plastic DIP
±6 Narrow SO
±6 Wide SO
±6 CERDIP
Battery-Powered RS-232 Systems
Multidrop RS-232 Networks
±6 CERDIP
+Denotes a lead(Pb)-free/RoHS-compliant package.
*Contact factory for dice specifications.
AutoShutdown and UCSP are trademarks of Maxim Integrated
Products, Inc.
Ordering Information continued at end of data sheet.
Selection Table
Power
Supply
(V)
+5
+5
No. of
RS-232
Drivers/Rx Ext. Caps (µF)
2/2
2/2
4/5
5/5
5/0
2/2
Nominal
SHDN
Rx
Part
No. of
Cap. Value & Three- Active in Data Rate
Number
MAX220
MAX222
State
SHDN
—
—
✔
✔
—
—
(kbps)
±20
200
±20
±20
±20
±20
Features
4
4
4
0
4
2
0.047/0.33 No
0.±
±.0 (0.±)
—
±.0 (0.±)
±.0 (0.±)
Ultra-low-power, industry-standard pinout
Low-power shutdown
MAX24± and receivers active in shutdown
Available in SO
Yes
Yes
Yes
Yes
No
MAX223 (MAX2±3) +5
MAX225 +5
MAX230 (MAX200) +5
5 drivers with shutdown
MAX23± (MAX20±) +5 and
Standard +5/+±2V or battery supplies;
same functions as MAX232
Industry standard
Higher slew rate, small caps
No external caps
No external caps, high slew rate
Replaces ±488
No external caps
Shutdown, three state
Complements IBM PC serial port
Replaces ±488 and ±489
Standard +5/+±2V or battery supplies;
single-package solution for IBM PC serial port
DIP or flatpack package
Complete IBM PC serial port
Separate shutdown and enable
Open-line detection simplifies cabling
High slew rate
+7.5 to +±3.2
MAX232 (MAX202) +5
MAX232A +5
MAX233 (MAX203) +5
MAX233A +5
MAX234 (MAX204) +5
MAX235 (MAX205) +5
MAX236 (MAX206) +5
MAX237 (MAX207) +5
MAX238 (MAX208) +5
MAX239 (MAX209) +5 and
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
±.0 (0.±)
0.±
—
—
±.0 (0.±)
—
±.0 (0.±)
±.0 (0.±)
±.0 (0.±)
±.0 (0.±)
No
No
No
No
No
Yes
Yes
No
No
No
—
—
—
—
—
—
—
—
—
—
±20 (64)
200
±20
200
±20
±20
±20
±20
±20
±20
+7.5 to +±3.2
+5
MAX24± (MAX2±±) +5
MAX240
5/5
4/5
2/2
2/2
8/±0
8/±0
8/±0
8/9
8/8
6/±0
4
4
4
4
4
0
0
0
4
4
±.0
±.0 (0.±)
0.±
0.±
±.0
—
—
—
±.0
±.0
Yes
Yes
Yes
No
—
—
✔
—
—
✔
✔
✔
✔
✔
±20
±20
200
200
±20
±20
±20
±20
±20
±20
MAX242
MAX243
MAX244
MAX245
MAX246
MAX247
MAX248
MAX249
+5
+5
+5
+5
+5
+5
+5
+5
No
Yes
Yes
Yes
Yes
Yes
High slew rate, int. caps, two shutdown modes
High slew rate, int. caps, three shutdown modes
High slew rate, int. caps, nine operating modes
High slew rate, selective half-chip enables
Available in quad flatpack package
________________________________________________________________ Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
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