MAX312MJE

The MAX312MJE is a low-power RS-232 transceiver manufactured by Analog Devices, integrating two drivers and two receivers for bidirectional serial communication in a 16-pin ceramic dual-inline (CDIP) package. It operates from a single 3.0V to 5.5V supply and achieves data rates up to 235kbps while maintaining compliant RS-232 output levels. An internal charge pump requires only four small external capacitors (typically 0.1µF), and a shutdown mode reduces supply current to 1µA, making it well-suited for power-constrained designs. The hermetic CDIP package and the MJE temperature grade ensure reliable performance over the full -55°C to +125°C military range.

Typical applications include ruggedized industrial controllers, avionics data links, tactical communication systems, and other high-reliability embedded systems that demand robust serial connectivity in extreme environments. The ceramic package provides superior thermal and mechanical stability, while the military temperature qualification supports deployment in defense and aerospace platforms where long-term reliability is non-negotiable. From a procurement standpoint, military-grade ceramic-packaged components like the MAX312MJE often have constrained supply chains and may be subject to extended lead times or eventual discontinuation. Design and procurement teams should verify the part’s lifecycle status and consider sourcing agreements for programs with extended maintenance and sustainment requirements.