Max 232

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19-4323; Rev 10; 8/01

+5V-Powered, Multichannel RS-232 Drivers/Receivers
General Description
The MAX220–MAX249 family of line drivers/receivers is intended for all EIA/TIA-232E and V.28/V.24 communications interfaces, particularly applications where ±12V is not available. These parts are especially useful in battery-powered systems, since their low-power shutdown mode reduces powerdissipation to less than 5µW. The MAX225, MAX233, MAX235, and MAX245/MAX246/MAX247 use no external components and are recommended for applications where printed circuit board space is critical.

____________________________Features Superior to Bipolar
o Operate from Single +5V Power Supply (+5V and +12V—MAX231/MAX239) o Low-Power Receive Mode in Shutdown (MAX223/MAX242) o Meet All EIA/TIA-232E andV.28 Specifications o Multiple Drivers and Receivers o 3-State Driver and Receiver Outputs o Open-Line Detection (MAX243)

MAX220–MAX249

________________________Applications
Portable Computers Low-Power Modems Interface Translation Battery-Powered RS-232 Systems Multidrop RS-232 Networks
PART MAX220CPE MAX220CSE MAX220CWE MAX220C/D MAX220EPE MAX220ESE MAX220EWE MAX220EJE MAX220MJEOrdering Information
TEMP. RANGE 0°C to +70°C 0°C to +70°C 0°C to +70°C 0°C to +70°C -40°C to +85°C -40°C to +85°C -40°C to +85°C -40°C to +85°C -55°C to +125°C PIN-PACKAGE 16 Plastic DIP 16 Narrow SO 16 Wide SO Dice* 16 Plastic DIP 16 Narrow SO 16 Wide SO 16 CERDIP 16 CERDIP

Ordering Information continued at end of data sheet. *Contact factory for dice specifications.

Selection TablePart Number MAX220 MAX222 MAX223 (MAX213) MAX225 MAX230 (MAX200) MAX231 (MAX201) MAX232 (MAX202) MAX232A MAX233 (MAX203) MAX233A MAX234 (MAX204) MAX235 (MAX205) MAX236 (MAX206) MAX237 (MAX207) MAX238 (MAX208) MAX239 (MAX209) MAX240 MAX241 (MAX211) MAX242 MAX243 MAX244 MAX245 MAX246 MAX247 MAX248 MAX249 Power Supply (V) +5 +5 +5 +5 +5 +5 and +7.5 to +13.2 +5 +5 +5 +5 +5 +5 +5 +5 +5 +5 and +7.5 to+13.2 +5 +5 +5 +5 +5 +5 +5 +5 +5 +5 No. of RS-232 Drivers/Rx 2/2 2/2 4/5 5/5 5/0 2/2 2/2 2/2 2/2 2/2 4/0 5/5 4/3 5/3 4/4 3/5 5/5 4/5 2/2 2/2 8/10 8/10 8/10 8/9 8/8 6/10 Nominal No. of Cap. Value Ext. Caps (µF) 4 0.1 4 0.1 4 1.0 (0.1) 0 — 4 1.0 (0.1) 2 1.0 (0.1) 4 4 0 0 4 0 4 4 4 2 4 4 4 4 4 0 0 0 4 4 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) 1.0 1.0 (0.1) 0.1 0.1 1.0— — — 1.0 1.0 SHDN & ThreeState No Yes Yes Yes Yes No No No No No No Yes Yes No No No Yes Yes Yes No No Yes Yes Yes Yes Yes Rx Active in SHDN — — ✔ ✔ — — — — — — — — — — — — — — ✔ — — ✔ ✔ ✔ ✔ ✔ Data Rate (kbps) 120 200 120 120 120 120 120 (64) 200 120 200 120 120 120 120 120 120 120 120 200 200 120 120 120 120 120 120 Features Ultra-low-power, industry-standard pinout Low-power shutdown MAX241and receivers active in shutdown Available in SO 5 drivers with shutdown Standard +5/+12V or battery supplies; same functions as MAX232 Industry standard 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-packagesolution 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 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

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For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

+5V-Powered, Multichannel RS-232 Drivers/Receivers MAX220–MAX249
ABSOLUTE MAXIMUM RATINGS—MAX220/222/232A/233A/242/243
Supply Voltage (VCC)...
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