MAX222MJN

Overview

The MAX222MJN is a dual RS-232 transceiver manufactured by Analog Devices Inc./Maxim Integrated. It operates from a single +5V supply and integrates charge pump circuitry to generate the required ±10V levels, eliminating external capacitors in specific configurations. The device features two drivers and two receivers for full or half-duplex communication. It supports EIA/TIA-232E and V.28/V.24 standards with TTL/CMOS compatible inputs and outputs. The component is housed in a 16-pin DIP package and is designed for industrial temperature ranges.

Feature Summary

• Integrated charge pump eliminates need for bipolar supplies
• Single +5V power supply operation
• TTL/CMOS input and output compatibility

Applications

• EIA/TIA-232E communications interfaces
• V.28/V.24 serial data transmission
• Portable diagnostic equipment

Procurement Notes

Verify current availability status as this component may be discontinued or subject to limited supply constraints. Confirm RoHS compliance and package authenticity through authorized distributors. Check for obsolescence notices from Analog Devices prior to procurement planning.

Selection Notes

Select this part for applications requiring dual RS-232 channels without external charge pump components. Ensure system design accommodates single +5V supply requirements. Verify that the 16-pin DIP package fits the target PCB layout constraints.

Part Context

This component belongs to the MAX220-MAX249 family of multichannel RS-232 transceivers. These devices are designed for space-constrained applications where integrated charge pumps reduce board space. The MJN suffix typically denotes military-grade specifications and ceramic DIP packaging.

Replacement Considerations

Consider MAX220, MAX232, or MAX233 for similar functionality. Verify pinout compatibility and electrical specifications before substitution. Check if alternative packages meet physical constraints.