MAX251CPD

Overview

The MAX251CPD+ is an RS-232 driver and receiver component manufactured by Analog Devices / Maxim Integrated. It operates on a single +5V power supply and supports data rates up to 19.2kbps. The device features two drivers and two receivers, providing full-duplex communication capabilities. It is housed in a 14-pin PDIP package designed for through-hole mounting. The operational temperature range extends from -40°C to +85°C. This component functions as part of the MAX250/MAX251 chipset, requiring external isolation components such as optocouplers and transformers to achieve electrical isolation.

Feature Summary

• Provides dual-channel RS-232 signal transmission and reception
• Enables low-power shutdown mode with minimal current consumption
• Supports push-pull transformer drive capability for isolation circuits

Applications

• Data communication systems requiring electrical isolation
• Industrial control interfaces
• Analog circuit isolation applications

Procurement Notes

Verify that the specific ordering suffix matches the required package type and temperature grade. Confirm RoHS compliance status if restricted materials are prohibited in the target assembly. Ensure the supplier provides valid traceability documentation for the Analog Devices / Maxim Integrated manufacturing source.

Selection Notes

Select this component when designing isolated RS-232 links using external magnetic or optical isolation elements. It pairs specifically with the MAX250 logic interface chip. Verify that the system design accommodates the necessary external passive components, including capacitors, diodes, and transformers, to complete the functional circuit.

Part Context

This device belongs to the MAX250/MAX251 series of isolated RS-232 transceivers. It serves as the high-voltage side of the chipset, handling the RS-232 voltage levels while interfacing with the MAX250 logic side. The series is designed to simplify the implementation of galvanic isolation in serial communication networks.

Replacement Considerations

Public confirmed substitute part numbers: MAX251CPE+, MAX251CSE+.