MAX214CPI+

Overview

The MAX214CPI+ is a +5V RS-232 transceiver featuring an 8-line, software-configurable interface for DTE or DCE port applications. It operates within a 0°C to +70°C temperature range and utilizes a 28-pin Plastic DIP package. The device supports data rates up to 116kbps with a typical supply current of 9.2mA in normal operation, reducing to 4µA in shutdown mode. It incorporates dual charge-pump voltage converters requiring four 1µF capacitors to generate ±10V rails from a single +5V supply.

Feature Summary

• Eliminates the need for null modem cables through software-selectable DTE/DCE configuration
• Integrates dual charge-pump voltage converters requiring only 1µF external capacitors
• Maintains receiver activity during shutdown mode for ring indicator detection
• Provides high-impedance control for multi-drop bus configurations

Applications

• AT-Compatible Laptop Computers
• AT-Compatible Desktop Computers
• Modems, Printers, and Other Peripherals

Procurement Notes

Verify the specific suffix 'CPI' corresponds to the commercial temperature range (0°C to +70°C) and 28-pin Plastic DIP package. Confirm RoHS compliance status via the manufacturer's official documentation. Ensure the ordering part number matches the exact pinout and electrical specifications required for the target design.

Selection Notes

Select this component when a complete 8-line RS-232 interface is required without external cable swapping. It is suitable for systems needing programmable DTE/DCE functionality. Consider the 116kbps data rate limit and the requirement for four 1µF charge-pump capacitors. Evaluate the shutdown power consumption benefits against the need for active receivers during low-power states.

Part Context

The MAX214 belongs to the Maxim Integrated RS-232 transceiver family designed for +5V operation. It provides a comprehensive solution for serial communication ports by integrating drivers, receivers, and voltage conversion. The device simplifies system design by allowing software configuration between DTE and DCE modes, reducing hardware complexity in portable and desktop computing environments.

Replacement Considerations

The MAX214EPI+ serves as the extended temperature variant (-40°C to +85°C). Verify pin compatibility and electrical parameter alignment before substitution. Review the datasheet for any differences in switching times or current consumption between the commercial and extended grades.