MAX3225EEAP+

Overview

The MAX3225EEAP+ is a dual RS-232 transceiver from the MAX3224E–MAX3227E family, manufactured by Analog Devices Inc./Maxim Integrated. It operates on a single +3.0V to +5.5V supply and supports data rates up to 1Mbps. The device features AutoShutdown Plus technology, reducing supply current to 1μA during inactivity. It includes two drivers and two receivers with ±15kV ESD protection. The component is housed in a 20-pin SSOP package and is rated for an industrial temperature range of -40°C to +85°C.

Feature Summary

• AutoShutdown Plus functionality automatically reduces power consumption when communication lines are idle or disconnected.
• Integrated dual charge pump generates internal voltage levels without requiring external inductors.
• High electrostatic discharge protection ensures robustness against air-gap and contact discharge events.

Applications

• Notebook, subnotebook, and palmtop computers
• Cellular phones and battery-powered equipment
• Hand-held devices and peripherals

Procurement Notes

Verify the specific ordering suffix 'AP+' corresponds to the 20-pin SSOP package and the -40°C to +85°C extended temperature range. Confirm that the lead-free/RoHS-compliant status matches project requirements. Cross-reference the manufacturer's official documentation to ensure compatibility with existing system designs before procurement.

Selection Notes

Select this component for applications requiring high-speed 1Mbps RS-232 communication within space-constrained environments. It is suitable for systems powered by 3V to 5.5V supplies where low standby power is critical. Ensure the design accommodates four small capacitors for the internal charge pump operation.

Part Context

This part belongs to the MAX3224E/MAX3225E/MAX3226E/MAX3227E series of 3V-powered RS-232 transceivers. The MAX3225E variant specifically distinguishes itself by supporting MegaBaud operation at 1Mbps, whereas other members like the MAX3224E are limited to 250kbps. All share the same core architecture and pinout options.

Replacement Considerations

The MAX3225ECUP+ serves as a direct replacement offering the same electrical specifications but utilizes a TSSOP-20 package instead of the SSOP-20 form factor. Verify footprint compatibility if substituting packages.