MAX241CAI

Overview

The MAX241CAI is a +5V-powered, multichannel RS-232 driver/receiver from the MAX220–MAX249 family. It operates within a commercial temperature range of 0°C to +70°C and supports data rates up to 120 kbps. The device integrates dual charge-pump circuits that convert a single +5V supply into ±10V internal voltages for RS-232 signaling, eliminating the need for external bipolar supplies. It features four drivers and five receivers with full-duplex communication capability.

Feature Summary

• Integrated charge pump circuitry eliminates the need for external components or bipolar power supplies
• Enables single-supply operation using only a +5V source
• Provides shutdown mode for significant power reduction in low-power applications

Applications

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

Procurement Notes

Verify the specific package type and suffix against the manufacturer's current ordering information table. Confirm that the component meets the required environmental specifications for the intended operating temperature range. Ensure all necessary decoupling capacitors are included in the design as per the datasheet recommendations.

Selection Notes

Select this part when board space is limited due to its integrated capacitor design. Consider the MAX241CAI for systems requiring multiple serial channels on a single +5V rail. Evaluate the shutdown functionality if power management during idle periods is a critical system requirement.

Part Context

This component belongs to the MAX220–MAX249 series of line drivers and receivers designed for EIA/TIA-232E and V.28/V.24 interfaces. The 'C' suffix indicates a commercial temperature rating of 0°C to +70°C. The 'AI' suffix typically denotes a specific package configuration, such as SSOP, distinct from other variants like SOIC or DIP.

Replacement Considerations

Direct replacements include other members of the MAX220–MAX249 family, such as the MAX232 or MAX242, provided they match the required pin count and package dimensions. Verify that any substitute maintains the same number of drivers and receivers and supports the necessary data rate.