MAX241ECAI

Overview

The MAX241ECAI+ is a single-supply RS-232 transceiver from the MAX202E–MAX241E family, manufactured by Analog Devices Inc./Maxim Integrated. It operates on a +5V supply and integrates charge-pump circuitry to generate ±10V levels without external bipolar supplies. The device features four drivers and five receivers, supporting data rates up to 120kbps. It provides high ESD protection of ±15kV (HBM) on driver outputs and receiver inputs. The component includes low-power shutdown control, reducing supply current to typically 1μA. It is housed in a 28-pin SSOP package and operates within an industrial temperature range of -40°C to +85°C.

Feature Summary

• Integrated charge pump eliminates need for external bipolar power supplies
• High electrostatic discharge protection on all RS-232 I/O pins
• Low-power shutdown mode with active receiver enable capability
• TTL/CMOS compatible logic input and output thresholds

Applications

• Battery-powered equipment requiring low standby current
• Hand-held diagnostic tools with frequent cable connections
• Portable instrumentation utilizing serial communication interfaces

Procurement Notes

Verify the specific suffix 'CAI' against official manufacturer documentation to confirm the exact pin-compatible package variant and temperature grade. Ensure ordering details match the required 28-pin SSOP form factor and industrial temperature specifications before procurement.

Selection Notes

Select this component when designing systems that require multiple transmit and receive channels on a single +5V rail. The integrated shutdown feature is suitable for battery-operated applications needing minimal quiescent current. Verify capacitor requirements, as this device requires 1μF charge-pump capacitors unlike other family members using 0.1μF.

Part Context

This part belongs to the MAX202E–MAX241E family of RS-232 transceivers designed for single-supply operation. The MAX241 variant specifically offers four drivers and five receivers, providing more channel density than the two-channel MAX232E while maintaining similar footprint and functionality constraints within the broader interface IC portfolio.

Replacement Considerations

Direct functional replacements within the same family include the MAX241EEAI+ for extended temperature ranges or different packaging options. Cross-family alternatives like the MAX3241ECUI+ offer wider voltage ranges but differ in pinout and capacitor requirements.