MAX250CPD

Overview

The MAX250CPD is a dual RS-232 transceiver manufactured by Analog Devices Inc./Maxim Integrated, designed for full-duplex communication. It operates at a data rate of 116 kb/s and features two drivers and two receivers. The device requires a single 5 V power supply and draws a typical operating current of 500 uA. It includes a shutdown feature to minimize power consumption during idle periods. The component is housed in a 14-pin PDIP package and supports through-hole mounting. It functions within an ambient temperature range of 0°C to +70°C.

Feature Summary

• Integrated isolation capability for the RS-232 driver and receiver stages
• Shutdown mode functionality to reduce quiescent power consumption
• Full-duplex operation with dedicated transmit and receive channels

Applications

• Industrial control systems requiring isolated serial communication
• Data acquisition equipment utilizing RS-232 interfaces
• Embedded systems needing low-power serial link solutions

Procurement Notes

Verify the specific ordering suffix against official documentation to confirm package type and temperature grade. Confirm RoHS compliance status directly from the manufacturer's datasheet or certification documents before procurement. Ensure the supplier provides traceable manufacturing records. Check for any regional distribution restrictions that may affect availability. Validate that the component matches the exact part number specifications required for the design.

Selection Notes

Select this component when a fully isolated RS-232 interface is necessary for noise immunity in industrial environments. Consider the 500 uA shutdown current for battery-operated applications where power efficiency is critical. Verify that the 116 kb/s data rate meets the system requirements. Ensure the PDIP-14 package fits the available PCB footprint and assembly constraints. Compare performance against non-isolated alternatives if isolation is not strictly required.

Part Context

The MAX250 belongs to the Maxim Integrated MAX250/MAX251 family of RS-232 transceivers. This series is characterized by its integrated isolation capabilities, distinguishing it from standard non-isolated counterparts. The CPD suffix indicates a plastic DIP package with commercial temperature range operation. It serves as a specialized interface solution for robust serial communication in electrically noisy settings.

Replacement Considerations

Direct substitutes include other isolated RS-232 transceivers from the same manufacturer family. Verify pin compatibility and electrical specifications before substitution. Non-isolated RS-232 chips are not direct replacements due to functional differences.