MAX220CSE+

Overview

The MAX220CSE+ is a dual driver and receiver RS-232 transceiver operating from a single +5V supply. It features an integrated charge pump generating ±10V for EIA/TIA-232E compliance without external bipolar supplies. The device provides full duplex communication with two drivers and two receivers in a 16-pin SOIC package. Electrical specifications include a typical data rate of 120kbps, transmitter output voltage swing of ±8V into a 3kΩ load, and receiver input hysteresis of 0.5V. Operating temperature range is 0°C to +70°C.

Feature Summary

• Integrated charge pump circuitry eliminates the need for external bipolar power supplies
• Enables single +5V supply operation for simplified system design
• Provides full duplex RS-232 communication channels

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 component authenticity through authorized distribution channels. Confirm package marking matches the 16-SOIC specification. Check datasheet revision history for any parameter updates. Ensure environmental compliance documentation aligns with project requirements. Validate ordering suffixes against manufacturer naming conventions.

Selection Notes

Select this component when designing systems limited to a single +5V power rail. Verify that the required data rate does not exceed 120kbps under expected load conditions. Consider the 16-pin narrow SOIC footprint constraints during PCB layout. Evaluate thermal dissipation capabilities if multiple units operate simultaneously at maximum load.

Part Context

This part belongs to the MAX220–MAX249 family of multichannel RS-232 drivers and receivers. The series offers various channel configurations and package options tailored for different interface density requirements. All members share the core architecture of internal charge pumps converting single-supply voltage to RS-232 levels.

Replacement Considerations

Direct replacements within the same family include other MAX220 variants with different temperature grades or packaging options. Cross-family substitutes require verification of pin compatibility and electrical parameter alignment.