MAX3225ECUP+

Overview

The MAX3225ECUP+ is a dual RS-232 transceiver manufactured by Analog Devices Inc./Maxim Integrated, housed in a 20-pin TSSOP package. It operates on a single +3.0V to +5.5V supply and supports data rates up to 1Mbps. The device incorporates AutoShutdown Plus technology, reducing supply current to 1µA when inputs remain inactive for over 30 seconds. It features two drivers and two receivers with full-duplex communication capability. Internal charge pumps require four external 0.1µF capacitors for operation.

Feature Summary

• AutoShutdown Plus functionality automatically reduces power consumption during periods of inactivity or cable disconnection without requiring BIOS modifications.
• MegaBaud operation guarantees reliable high-speed data transmission at rates up to 1Mbps for demanding applications.
• Integrated dual charge pump generates required internal voltage levels using only four small external capacitors.

Applications

• Notebook, subnotebook, and palmtop computers
• Cellular phones and handheld equipment
• Battery-powered peripherals and printers

Procurement Notes

Verify the component authenticity through official manufacturer channels or authorized distributors. Confirm that the specific ordering suffix matches the required temperature range and packaging format. Ensure compliance with RoHS standards and check for any relevant lifecycle status updates before finalizing procurement decisions.

Selection Notes

Select this model for designs requiring low-power standby modes alongside high-speed serial communication capabilities. The integrated shutdown feature simplifies power management strategies for battery-operated systems. Verify that the system's UART timing requirements align with the specified propagation delays and slew rates.

Part Context

This component belongs to the MAX3224–MAX3227 family of EIA/TIA-232 interfaces. It shares core architectural features with siblings like the MAX3226 but offers higher data rate performance. The UCSP trademark indicates space-saving packaging options within the broader product line.

Replacement Considerations

Public confirmed substitute part numbers: MAX3225EUP+, MAX3225CPP+.