MAX3241ECAI+ - Maxim Integrated Products - ±15kV ESD-Protected, Down to 10nA, 3.0V to 5.5V, Up to 1



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±15kV ESD-Protected, Down to 10nA, 3.0V to 5.5V, Up to 1Mbps, True RS-232 Transceivers


The MAX3222E/MAX3232E/MAX3237E/MAX3241E/MAX3246E +3.0V-powered EIA/TIA-232 and V.28/V.24 communications interface devices feature low power consumption, high data-rate capabilities, and enhanced electrostatic-discharge (ESD) protection. The enhanced
ESD structure protects all transmitter outputs and receiver inputs to ±15kV using IEC 1000-4-2 Air-Gap Discharge, ±8kV using IEC 1000-4-2 Contact Discharge (±9kV for MAX3246E), and ±15kV using the Human Body Model. The logic and receiver I/O pins of the MAX3237E are protected to the above standards, while the transmitter output pins are protected to ±15kV using the Human Body Model.
A proprietary low-dropout transmitter output stage delivers true RS-232 performance from a +3.0V to +5.5V power supply, using an internal dual charge pump. The charge pump requires only four small 0.1µF capacitors for operation from a +3.3V supply. Each device guarantees operation at data rates of 250kbps while maintaining RS-232 output levels. The MAX3237E guarantees operation at 250kbps in the normal operating mode and 1Mbps in the MegaBaud™ operating mode, while maintaining RS-232-compliant output levels.
The MAX3222E/MAX3232E have two receivers and two transmitters. The MAX3222E features a 1µA shutdown mode that reduces power consumption in battery-powered portable systems. The MAX3222E receivers remain active in shutdown mode, allowing monitoring of external devices while consuming only 1µA of supply current. The
MAX3222E and MAX3232E are pin, package, and functionally compatible with the industry-standard MAX242 and MAX232, respectively.
The MAX3241E/MAX3246E are complete serial ports (three drivers/five receivers) designed for notebook and subnotebook computers. The MAX3237E (five drivers/ three receivers) is ideal for peripheral applications that require fast data transfer. These devices feature a shutdown mode in which all receivers remain active, while consuming only 1µA (MAX3241E/MAX3246E) or 10Na (MAX3237E).
The MAX3222E, MAX3232E, and MAX3241E are available in space-saving SO, SSOP, and TSSOP packages.
The MAX3237E is offered in an SSOP package. The MAX3246E is offered in the ultra-small 6 x 6 UCSP™ package


♦ ESD Protection for RS-232 I/O Pins
±15kV—Human Body Model
±8kV—IEC 1000-4-2, Contact Discharge
±9kV (MAX3246E Only)—IEC 1000-4-2, Contact Discharge
±15kV—IEC 1000-4-2, Air-Gap Discharge
♦ ESD Protection for all Logic and Receiver I/O Pins (MAX3237E)
±15kV—Human Body Model
±8kV—IEC 1000-4-2, Contact Discharge
±15kV–IEC 1000-4-2, Air-Gap Discharge
♦ ESD Protection for Transmitter Output Pins (MAX3237E)
±15kV—Human Body Model
♦ Guaranteed Data Rate
250kbps (MAX3222E/MAX3232E/MAX3241E/
MAX3246E/MAX3237E, Normal Operation)
1Mbps (MAX3237E, MegaBaud Operation)
♦ Latchup Free
♦ Low-Power Shutdown with Receivers Active
1µA (MAX3222E/MAX3241E/MAX3246E)
10nA (MAX3237E)
♦ Flow-Through Pinout (MAX3237E)
♦ Guaranteed Mouse Drivability (MAX3241E)
♦ Meets EIA/TIA-232 Specifications Down to +3.0V



MAX3222E,32E,37E,41E,46E Datasheet

Product Photos


Product Training Modules

Lead (SnPb) Finish for COTS
Long-Term Supply Program

Featured Product

RS-232 Transceivers

Standard Package



Integrated Circuits (ICs)


Interface - Drivers, Receivers, Transceivers







Number of Drivers/Receivers




Voltage - Supply

3 V ~ 5.5 V

Mounting Type

Surface Mount

Package / Case

28-SSOP (0.209", 5.30mm Width)

Supplier Device Package


Catalog Page

1073 (CN081 PDF)

Competitive Advantage:

Warranty :180 days !
Free shipping: Order over $1000 win a free shipment fee
(goods weight below 3Kg) ,during 20130901-20130930 .

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