MAX3317EAP

Overview

The MAX3317EAP is a low-voltage RS-232 transceiver manufactured by Analog Devices Inc./Maxim Integrated. It operates within a supply voltage range of +2.25V to +3.0V and supports data rates up to 460kbps. The device integrates two drivers and two receivers for full-duplex communication. It utilizes a dual charge pump to generate required RS-232 voltages from the low supply, requiring only four 0.1µF capacitors. The component features ±15kV ESD protection on all pins and is housed in a 20-pin SSOP package.

Feature Summary

• Proprietary low-dropout transmitter output stage enables RS-232 compatibility at low voltages
• AutoShutdown Plus feature automatically reduces supply current when the cable is disconnected
• Integrated dual charge pump minimizes external component count
• High ESD protection rating ensures robustness against electrostatic discharge events

Applications

• Portable battery-powered devices requiring serial communication
• Industrial equipment with limited power supply constraints
• Medical instrumentation needing low-power interface solutions
• GPS modules and communication systems

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and check for end-of-life notifications, as this part may be discontinued. Ensure the specific suffix matches the required package type and temperature grade before ordering.

Selection Notes

Select this component for applications requiring full-duplex RS-232 communication under strict power budgets. Verify that the system supply voltage falls within the 2.25V to 3.0V range. Consider the 460kbps maximum data rate against application requirements. Ensure adequate decoupling capacitor placement near the V+ and V- pins for stable charge pump operation.

Part Context

This device belongs to the MAX3316–MAX3319 family of low-voltage RS-232 transceivers. These components share similar architectural features, including the use of a dual charge pump and low quiescent current design. The family allows designers to implement standard RS-232 interfaces in modern low-voltage digital systems without requiring higher voltage rails.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult official Analog Devices resources for current alternative recommendations or updated product line replacements.