MAX3225ECUP-TG068

Overview

The MAX3225ECUP-TG068 is a dual RS-232 transceiver manufactured by Analog Devices Inc./Maxim Integrated, designed for full-duplex communication. It operates within a supply voltage range of 3.0V to 5.5V and supports data rates up to 1Mbps. The device features an AutoShutdown Plus function that reduces power consumption during idle periods. It includes two drivers and two receivers, housed in a TSSOP-20 surface-mount package. The component provides 15kV ESD protection on all pins and incorporates internal charge pumps to eliminate the need for external capacitors.

Feature Summary

• AutoShutdown Plus functionality automatically powers down the device when no signal activity is detected, significantly reducing quiescent current.
• Integrated internal charge pumps generate the required positive and negative voltages for RS-232 signaling without external components.
• Robust electrostatic discharge (ESD) protection rated at 15kV ensures reliability in high-interference environments.

Applications

• Industrial control systems requiring reliable serial communication
• Portable battery-powered equipment utilizing low-power interface solutions
• Modems and fax machines needing full-duplex RS-232 connectivity

Procurement Notes

Verify the specific suffix TG068 against official manufacturer documentation to confirm tape-and-reel specifications and lot traceability. Ensure compatibility with existing PCB footprints for the TSSOP-20 package. Confirm RoHS compliance status through the latest datasheet revision before procurement.

Selection Notes

Select this component for applications requiring dual-channel RS-232 communication with minimal external component count. The 3.0V to 5.5V operating range makes it suitable for both 3.3V and 5V logic systems. Consider the TSSOP-20 package size constraints and thermal requirements for dense circuit board layouts.

Part Context

This part belongs to the MAX3225E series of RS-232 transceivers known for their low power consumption and ease of use. The ECUP designation indicates a specific commercial temperature grade and packaging variant within the broader Maxim Integrated interface IC portfolio.

Replacement Considerations

Direct substitutes include other MAX3225 variants with compatible pinouts such as MAX3225ECPA or MAX3225ECPE. Verify electrical parameters and package dimensions before substitution to ensure mechanical fit and functional equivalence.