MAX238 Multichannel RS-232 Driver Receiver IC (DIP-24)

The MAX238 is a high-density multichannel RS-232 transceiver designed for applications that require multiple serial communication ports but lack a bipolar plus or minus 12V power supply. This device integrates four drivers and four receivers into a single 24-pin package, making it an efficient choice for interface translation and multidrop networks. By utilizing an on-board charge pump to generate the necessary RS-232 voltage levels from a single plus 5V source, the MAX238 simplifies power management and reduces the overall component count on the printed circuit board. It is ideally suited for portable diagnostic equipment, low-power modems, and battery-powered systems where space and energy efficiency are critical.

Key Features:

Operates from a single plus 5V supply using an internal charge pump.

Supports reliable data signaling rates up to 120kbps.

Fully compliant with EIA/TIA-232E and V.28 standards.

Features 3-state driver and receiver outputs for flexible system design.

Designed to replace older 1488 and 1489 IC sets to save board space.