MAX241EAI

Overview

The MAX241EAI is a +5V-powered, multichannel RS-232 driver and receiver integrated circuit from the Analog Devices / Maxim Integrated MAX220–MAX249 family. It provides four drivers and five receivers for full-duplex communication. The device operates on a single +5V supply by utilizing an internal dual charge-pump DC-DC voltage converter to generate the required ±10V levels. It supports data rates up to 120 kbps with a typical propagation delay of 10 µs. The component features a shutdown mode that reduces power consumption significantly. It is designed for EIA/TIA-232E and V.28/V.24 interfaces and operates within a temperature range of -40°C to +85°C.

Feature Summary

• Integrates dual charge-pump circuits to eliminate the need for external bipolar supplies
• Enables single +5V supply operation for simplified system design
• Includes a low-power shutdown mode to minimize energy consumption
• Provides multiple independent transmitter and receiver enable controls

Applications

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

Procurement Notes

Verify the specific ordering suffix against official documentation to confirm package type and temperature rating. Confirm RoHS compliance status through manufacturer datasheets or certificates. Ensure the source document matches the exact part number to avoid discrepancies in pinout or electrical characteristics.

Selection Notes

Select this component when designing systems limited to a single +5V power rail without access to negative voltages. Consider the 120 kbps data rate limit and 10 µs propagation delay for timing requirements. Evaluate the shutdown functionality if power management during idle states is critical for the application.

Part Context

The MAX241EAI belongs to the MAX220–MAX249 series of line drivers and receivers. This family is characterized by its ability to operate from a single supply using internal charge pumps. The 'E' suffix indicates an extended industrial temperature range of -40°C to +85°C, distinguishing it from commercial variants.

Replacement Considerations

The MAX241EEI+ serves as a direct replacement offering identical electrical specifications and functionality within the same product family.