MAX237ENG

Overview

The MAX237ENG+ is a multichannel RS-232 transceiver manufactured by Analog Devices Inc./Maxim Integrated. It integrates five drivers and three receivers within a single package, supporting full-duplex communication at data rates up to 120 kb/s. The device operates on a single +5 V power supply with a typical operating current of 15 mA. It features a propagation delay of 10 µs and lacks built-in ESD protection or shutdown functionality. Designed for through-hole mounting, it is housed in a 24-pin Narrow PDIP package and functions reliably across an industrial temperature range from -40°C to +85°C.

Feature Summary

• Integrates five independent drivers and three receivers for high-density serial communication
• Supports full-duplex RS-232 transmission without requiring external charge pumps
• Operates exclusively on a standard +5 V power supply rail

Applications

• Industrial control systems requiring multiple serial ports
• Data acquisition equipment with multi-channel connectivity
• Embedded systems utilizing legacy RS-232 peripherals

Procurement Notes

Verify the specific suffix 'ENG+' against official datasheets to confirm the narrow DIP package and commercial temperature grade. Confirm RoHS compliance status directly with the manufacturer documentation. Ensure the ordering part number matches the exact pinout and electrical specifications required for the design.

Selection Notes

Select this component when a single IC must handle five transmit and three receive lines simultaneously. Verify that the system does not require integrated ESD protection, as this variant lacks such features. Confirm that the 120 kb/s speed limit meets the application's timing requirements and that the 24-pin through-hole package fits the PCB layout constraints.

Part Context

This part belongs to the MAX237 series of multichannel RS-232 transceivers. It serves as a high-channel-count alternative to standard dual-driver devices. The ENG+ designation indicates the specific package style and lead-free manufacturing process compliant with current environmental standards.

Replacement Considerations

The ADM237LANZ is a documented equivalent offering identical 5/3 driver/receiver configuration. Verify pin compatibility and electrical parameter alignment before substitution.