MAX220CSE

Overview

The MAX220CSE is a dual driver/receiver RS-232 transceiver from the MAX220–MAX249 family, designed for EIA/TIA-232E and V.28/V.24 interfaces. It operates on a single +5V supply using an integrated charge pump to generate ±10V internally. The device features two drivers and two receivers in a 16-pin Narrow SOIC package. Electrical specifications include a typical data rate of 120 kbps, transmitter output voltage swing of ±8V with a 3kΩ load, and receiver input hysteresis of 0.5V. Supply current is typically 2mA under no-load conditions.

Feature Summary

• Integrated charge pump circuitry eliminates the need for external bipolar power supplies
• Enables single-supply operation from a standard +5V source
• Provides full duplex communication capability for serial data transmission

Applications

• Interface translation between TTL/CMOS logic and RS-232 standards
• Multidrop RS-232 network connections
• Portable diagnostics equipment requiring low power consumption

Procurement Notes

Verify the specific suffix 'CSE' against the manufacturer's official ordering information table to confirm the package type and temperature range. Ensure that the required external capacitors match the values specified in the datasheet for the MAX220 variant. Confirm RoHS compliance status through the manufacturer's documentation before finalizing procurement.

Selection Notes

Select this component when designing systems limited to a single +5V power rail without access to negative voltages. It is suitable for applications requiring moderate data rates up to 120 kbps. Consider alternative parts within the MAX220-MAX249 family if internal capacitors or higher channel counts are required for space-constrained designs.

Part Context

This part belongs to the MAX220–MAX249 family of multichannel RS-232 drivers and receivers manufactured by Analog Devices Inc./Maxim Integrated. The family offers various configurations ranging from dual to quad channels across multiple package types. These components are specifically engineered to simplify RS-232 interface design by integrating the necessary voltage conversion circuitry on-chip.

Replacement Considerations

Compatible substitutes within the same family include the MAX232CSE and MAX232A CSE. Verify pin compatibility and electrical characteristics such as data rate and supply current when substituting.