MAX242EPN+

Overview

The MAX242EPN+ is a +5V-powered, multichannel RS-232 line transceiver from the MAX220–MAX249 family. It integrates two drivers and two receivers with an internal charge pump that eliminates the need for external bipolar supplies. The device operates on a single +5V supply (4.5V to 5.5V) and supports data rates up to 200 kbps. It features a shutdown mode consuming as low as 10µA. The component is housed in an 18-pin Plastic DIP package and is rated for commercial operating temperatures ranging from 0°C to +70°C.

Feature Summary

• Integrated charge-pump circuitry enables single-supply operation without requiring external ±12V power rails.
• Includes a dedicated shutdown control pin to minimize power consumption during idle periods.
• Provides TTL/CMOS-compatible inputs and outputs alongside RS-232 voltage levels.

Applications

• Interface translation between TTL/CMOS logic and RS-232 standards
• Multidrop RS-232 communication networks
• Portable diagnostic equipment

Procurement Notes

Verify the specific suffix 'E' against official documentation to confirm the temperature range designation. Confirm the 'PN' suffix corresponds to the 18-pin Plastic DIP package type. Ensure the '+' suffix indicates compliance with current environmental directives. Cross-reference the manufacturer's ordering information table to validate availability and exact specifications.

Selection Notes

Select this component when designing systems requiring RS-232 connectivity powered by a single +5V source. It is suitable for applications where board space is limited due to the integrated charge pump. Consider the 18-pin DIP package if through-hole mounting is required. Verify that the 200 kbps data rate meets the system requirements.

Part Context

This part belongs to the MAX220–MAX249 family of +5V-powered RS-232 drivers and receivers. The family offers various channel configurations and packages. The MAX242 specifically provides two drivers and two receivers. Other variants in the series may include integrated capacitors or different pin counts.

Replacement Considerations

Compatible substitutes within the same family include the MAX232 and MAX222. These parts share similar electrical characteristics and functionality but may differ in package options or specific control pin configurations. Verify pin compatibility before substitution.