MAX232MJE

Overview

The MAX232MJE is a +5V-powered, multichannel RS-232 driver and receiver manufactured by Analog Devices Inc./Maxim Integrated. It operates within a supply voltage range of 4.5V to 5.5V and supports data rates up to 200kbps. The device features two drivers and two receivers with full-duplex communication capability. It utilizes an integrated charge pump circuitry to generate internal ±10V levels from a single +5V supply, eliminating the need for external bipolar supplies. The component is housed in a 16-pin Plastic DIP package and is rated for an industrial operating temperature range of -55°C to +125°C.

Feature Summary

• Integrated charge pump circuitry enables single-supply operation without requiring external bipolar power sources.
• Provides dual drivers and dual receivers for full-duplex RS-232 communications.
• Supports interface translation between TTL/CMOS logic levels and RS-232 signal standards.

Applications

• Interface translation for EIA/TIA-232E and V.28/V.24 communications interfaces
• Multidrop RS-232 networks
• Portable diagnostics equipment

Procurement Notes

Verify that the ordering suffix 'MJE' corresponds to the specific military-grade temperature range (-55°C to +125°C) and 16-pin Plastic DIP package configuration. Confirm compliance with relevant environmental directives and ensure the component matches the exact manufacturer part number to avoid functional discrepancies.

Selection Notes

Select this component when designing systems requiring robust RS-232 connectivity under extreme temperature conditions. It is suitable for applications where space constraints preclude the use of discrete charge pump components but require higher thermal stability than standard commercial variants.

Part Context

This component belongs to the MAX220–MAX249 family of line drivers and receivers designed for EIA/TIA-232E and V.28/V.24 interfaces. The family offers various channel configurations and packages, with the MAX232 variant specifically providing two drivers and two receivers for standard serial communication tasks.

Replacement Considerations

Compatible replacements include other members of the MAX220-MAX249 family such as the MAX232A or MAX232CPE, provided they meet the required temperature range and pinout compatibility.