MAX220ESE+

Drivers, Receivers, Transceivers Overview

The MAX220ESE+ is a dual-channel RS-232 transceiver from the MAX220–MAX249 family, manufactured by Analog Devices Inc./Maxim Integrated. It operates on a single +5V supply and utilizes an integrated charge pump to generate internal ±10V rails for RS-232 signaling. The device provides two drivers and two receivers in a 16-pin Narrow SOIC package. Electrical specifications include a data rate of 200 kbps, a typical propagation delay of 10 µs, and a maximum output voltage swing of ±8V under load. It supports full-duplex communication without requiring external bipolar power supplies.

Drivers, Receivers, Transceivers Feature Summary

• Integrated charge pump circuitry eliminates the need for external components or bipolar ±12V supplies.
• Enables single-supply operation using only a +5V source.
• Designed for applications where printed circuit board space is critical.

Drivers, Receivers, Transceivers Applications

• Interface translation between TTL/CMOS logic and RS-232 standards
• Multidrop RS-232 networks
• Portable diagnostics equipment

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix 'E' indicates the extended temperature range (-40°C to +85°C) as defined in the datasheet ordering information. Confirm that the 'SE' designation corresponds to the 16-pin Narrow SOIC package. Ensure compliance with RoHS directives if required by the project specifications.

Drivers, Receivers, Transceivers Selection Notes

Select this component when a single +5V supply is available and external bipolar voltages are prohibited. The MAX220 requires four external capacitors (C1-C5) for the charge pump, unlike self-contained variants. Verify that the 200 kbps data rate meets system requirements and that the 10 µs propagation delay is acceptable for timing constraints.

Drivers, Receivers, Transceivers Part Context

This part belongs to the MAX220–MAX249 family of +5V-powered multichannel RS-232 drivers and receivers. The family offers various channel counts and packaging options. The MAX220 specifically provides two drivers and two receivers, distinguishing it from higher-channel devices like the MAX249 which offers four drivers and five receivers.

Drivers, Receivers, Transceivers Replacement Considerations

Direct functional substitutes within the same family include the MAX232ESE+ and MAX232AEESE+. These alternatives may differ in capacitor requirements or specific electrical characteristics such as input resistance and hysteresis levels.

Drivers, Receivers, Transceivers FAQ

Does the MAX220 require external capacitors?

Yes, the MAX220 requires four external capacitors: C1 (0.047µF), C2 (0.33µF), C3 (0.33µF), C4 (0.33µF), and C5 (0.33µF) to support the internal charge pump circuitry.

What is the maximum magnitude of V+ and V- for the MAX220?

For the MAX220, V+ and V- can have a maximum magnitude of 7V, but their absolute difference cannot exceed 13V.

Is the MAX220 compatible with EIA/TIA-232E standards?

Yes, the MAX220 is intended for all EIA/TIA-232E and V.28/V.24 communications interfaces.