MAX238CNG+

Overview

The MAX238CNG+ is a quad RS-232 transceiver manufactured by Analog Devices Inc./Maxim Integrated, designed for full-duplex data communication. It operates on a single +5V power supply and features four drivers and four receivers within a 24-pin PDIP package. The device supports data rates up to 120 kb/s with a propagation delay of 10 us. It functions within an operating temperature range of 0°C to +70°C and draws 15 mA of working power supply current. This component lacks ESD protection and shutdown capabilities, making it suitable for standard serial interface applications requiring robust signal transmission.

Feature Summary

• Provides four independent drivers and four receivers for simultaneous full-duplex communication channels.
• Operates reliably on a single +5V power supply without requiring negative voltage generation.
• Utilizes a 24-pin through-hole PDIP package for easy integration into prototyping and industrial systems.

Applications

• Industrial control systems requiring multiple serial communication ports
• Point-of-sale terminals and barcode scanners
• Medical equipment with serial data interfaces

Procurement Notes

Verify the specific suffix 'CNG+' against official Analog Devices documentation to confirm the PDIP package type and commercial temperature grade. Ensure compatibility with existing board layouts designed for 24-pin DIP footprints. Confirm that the absence of ESD protection meets the environmental requirements of the target application before procurement.

Selection Notes

Select this component when a quad-channel RS-232 solution is required in a through-hole format. It is appropriate for designs where space constraints are minimal and single-supply operation is preferred. Consider alternatives if ESD protection or low-power shutdown modes are necessary for the specific system environment.

Part Context

This part belongs to the MAX238 series of multichannel RS-232 drivers. It shares functional similarities with other Maxim integrated circuits but is distinct due to its specific pinout and package configuration. The series is widely recognized for providing reliable serial communication in environments where standard TTL levels must be converted to RS-232 voltages.

Replacement Considerations

Direct replacements include the MAX238CWG+ for surface mount applications or other variants within the MAX238 family. Verify pin compatibility and electrical specifications before substituting, as package differences may require PCB redesigns.