MAX251CPD+

Overview

The MAX251CPD+ is a dual RS-232 transceiver manufactured by Analog Devices Inc. under the Maxim Integrated brand, housed in a 14-pin PDIP package. It operates on a single +5V supply and supports data rates up to 120kb/s with full-duplex communication. The device integrates two drivers and two receivers, featuring an internal charge pump that eliminates the need for external capacitors. It includes a shutdown mode to minimize power consumption during idle periods.

Feature Summary

• Integrated charge pump architecture removes the requirement for external positive and negative voltage generation capacitors
• Shutdown functionality allows for significant power reduction when the interface is not actively transmitting or receiving data

Applications

• Industrial equipment requiring serial communication links
• Computer peripherals utilizing RS-232 standards
• Modem interfaces in embedded systems

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and packaging specifications against current datasheet revisions. Ensure storage conditions meet humidity sensitivity requirements prior to assembly.

Selection Notes

Select this component for applications requiring isolated RS-232 signaling without external capacitor overhead. Compare performance metrics against similar models like the MAX250 if specific pinout variations are required. Evaluate thermal characteristics for enclosed industrial environments.

Part Context

This part belongs to the MAX250/MAX251 family of RS-232 transceivers designed for low-power, single-supply operation. It serves as a standard interface solution for legacy serial protocols in modern embedded designs.

Replacement Considerations

The MAX250CPD+ is a functional substitute within the same series. Verify pin compatibility and electrical specifications before implementation.