MAX3232CWE

Part: MAX3222/MAX3232/MAX3237/MAX3241 from Maxim Integrated Products, Inc.

Type: True RS-232 Transceivers

Description: Low-power RS-232 transceivers operating from a 3.0V to 5.5V supply, supporting data rates up to 120kbps for MAX3222/MAX3232/MAX3241 and up to 1Mbps for MAX3237 in MegaBaud mode.

Operating Conditions:

• Supply voltage: +3.0V to +5.5V
• Operating temperature: 0°C to +70°C or -40°C to +85°C
• Max data rate: 120kbps (MAX3222/MAX3232/MAX3241), 1Mbps (MAX3237 MegaBaud mode)

Absolute Maximum Ratings:

• Max supply voltage: +6V (VCC)
• Max continuous current: ±60 mA (T_OUT Short-Circuit Current)
• Max junction/storage temperature: +150°C (Storage Temperature Range)

Key Specs:

• VCC Power-Supply Current (no load, +25°C): 0.3 mA (typ, MAX3222/MAX3232/MAX3241), 0.5 mA (typ, MAX3237)
• Shutdown Supply Current (SHDN = GND, +25°C): 1.0 μA (typ), 10 μA (max)
• Transmitter Output Voltage Swing (loaded with 3kΩ): ±5.0 V (min), ±5.4 V (typ)
• Receiver Input Voltage Range: -25 V to +25 V
• Receiver Input Resistance (+25°C): 3 kΩ (min), 5 kΩ (typ), 7 kΩ (max)
• Maximum Data Rate (MAX3222/MAX3232/MAX3241): 120 kbps (min)
• Maximum Data Rate (MAX3237, MBAUD = VCC): 1000 kbps (min)
• Transition-Region Slew Rate (MAX3222/MAX3232/MAX3241, CL=150pF to 1000pF): 6 V/μs (min), 30 V/μs (max)

Features:

• Proprietary low-dropout transmitter output stage
• Requires only four small 0.1μF external charge-pump capacitors
• Always-on extra outputs enable monitoring of external devices (MAX3237/MAX3241)
• 1μA supply current in shutdown mode while receiver is active (MAX3222, MAX3237, MAX3241)
• Integrated charge pump circuitry eliminates the need for a bipolar ±12V supply
• Wide single-supply operation from +3V to +5.5V supply

Applications:

• Battery-Powered Equipment
• Hand-Held Equipment
• Peripherals
• Datacom Equipment

Package:

• 20 TSSOP
• 20 SSOP
• 18 SO
• 18 Plastic Dip
• 16-Pin TSSOP
• 16-Pin Narrow SO
• 16-Pin Wide SO
• 16-Pin Plastic DIP
• 28-Pin TSSOP
• 28-Pin SSOP
• 28-Pin SO

• Integrated Features Saves Board Space and Simplifies Design
• Charge Pump Circuitry Eliminates the Need for a Bipolar ±12V Supply
• Wide Single-Supply Operation From +3V to +5.5V Supply
• Always-On Extra Outputs Enable Monitoring of External Devices
• Power Saving Extends Battery Life
• 1μA Supply Current in Shutdown Mode While Receiver is Active (MAX3222, MAX3237, MAX3241)

• Battery-Powered Equipment
• Hand-Held Equipment
• Peripherals
• Datacom Equipment

Ordering Information continued at end of data sheet.

Typical Operating Circuits appear at end of data sheet.

Pin Configurations continued at end of data sheet.

MegaBaud and UCSP are trademarks of Maxim Integrated Products, Inc.

*Covered by U.S. Patent numbers 4,636,930; 4,679,134; 4,777,577; 4,797,899; 4,809,152; 4,897,774; 4,999,761; and other patents pending.

(V CC = +3.0V to +5.5V, C1-C4 = 0.1μF (Note 2), T A = T MIN to T MAX , unless otherwise noted. Typical values are at T A = +25°C.)

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Note 1: 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.

For the latest package outline information and land patterns (footprints), go to www.maximintegrated.com/packages . Note that a '+', '#', or '-' in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing pertains to the package regardless of RoHS status.

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