MAX3224CPP

Overview

The MAX3224CPP is a dual RS-232 transceiver manufactured by Analog Devices Inc./Maxim Integrated, designed for EIA/TIA-232 and V.28/V.24 communication interfaces. It operates within a supply voltage range of 3.0V to 5.5V and supports data rates up to 1Mbps. The device features two drivers and two receivers with full-duplex operation. It incorporates AutoShutdown Plus technology, reducing supply current to 1µA during idle states. The component is housed in a 20-pin PDIP package and functions within an operating temperature range of 0°C to +70°C.

Feature Summary

• AutoShutdown Plus functionality automatically reduces power consumption when the interface is inactive or disconnected.
• Integrated charge pump eliminates the need for external capacitors in standard configurations.
• Robust ±15kV electrostatic discharge (ESD) protection on all RS-232 lines.

Applications

• Portable computers and notebook systems requiring low-power serial communication.
• Industrial control systems utilizing RS-232 protocols.
• Modems and peripheral devices connected via serial interfaces.

Procurement Notes

Verify the specific suffix 'CPP' confirms the 20-pin PDIP package and commercial temperature grade. Confirm RoHS compliance status as indicated by the '+' suffix. Check manufacturer lifecycle notices for end-of-life declarations, as older Maxim parts may have discontinued status. Ensure the source document matches the exact part number to avoid confusion with similar MAX3224 variants.

Selection Notes

Select this component for applications requiring dual-channel RS-232 connectivity with minimal standby power draw. The 20-pin DIP package suits through-hole prototyping or legacy board designs. Verify that the 1Mbps data rate meets system requirements. Consider the commercial temperature range if the environment exceeds 70°C, necessitating an industrial-grade variant.

Part Context

The MAX3224 series belongs to Maxim's family of 3V-powered RS-232 transceivers featuring AutoShutdown Plus. This technology distinguishes the series by dynamically managing power states based on bus activity. The MAX3224 specifically provides two drivers and two receivers, offering a balanced solution for bidirectional serial data transmission in space-constrained electronic designs.

Replacement Considerations

Publicly confirmed substitutes include the MAX3225CPP for pin-compatible upgrades with enhanced specifications. Other compatible alternatives within the same family are the MAX3224EETP+ for surface-mount applications. Verify electrical compatibility before replacing, as package types and temperature ranges may differ between variants.