MAX3318EIPWRG4

Overview

The MAX3318EIPWRG4 is a dual-driver, dual-receiver RS-232 transceiver manufactured by Texas Instruments. It operates from a single 2.25-V to 3-V supply and supports data rates up to 460 kbps. The device integrates a charge pump requiring four 0.1-μF capacitors and features ±15-kV ESD protection on RS-232 I/O pins per the IEC 61000-4-2 standard. It includes an auto-power-down plus feature that reduces supply current to 1 μA when drivers are inactive for approximately 30 seconds. The component is housed in a 20-pin TSSOP package and functions within an operating temperature range of -40°C to +85°C.

Feature Summary

• Integrated ±15-kV ESD protection on RS-232 I/O pins compliant with IEC 61000-4-2 standards
• Auto-power-down plus functionality reduces supply current to 1 μA during inactivity
• Proprietary low-dropout driver output stage enables operation from a single 2.25-V to 3-V supply

Applications

• Battery-powered systems
• PDAs
• Cellular phones
• Notebooks
• Hand-held equipment

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official Package Option Addendum to confirm the exact package type, lead finish, and moisture sensitivity level. Ensure the procurement channel sources parts directly from authorized distributors or the manufacturer to guarantee authenticity and compliance with RoHS directives. Cross-reference the part marking code MP318EI with the datasheet to validate the component identity upon receipt.

Selection Notes

Select this component for applications requiring low-voltage operation between 2.25 V and 3 V with integrated ESD protection. The auto-power-down plus feature makes it suitable for battery-operated devices where power conservation is critical. Verify that the system design accommodates the required four 0.1-μF external capacitors for the internal charge pump. Confirm that the 20-pin TSSOP package dimensions fit the available PCB space.

Part Context

This component belongs to the MAX3318 family of RS-232 transceivers designed for low-voltage serial communication. The 'G4' suffix indicates a lead-free and RoHS-compliant version of the standard MAX3318EIPWR. It serves as a direct replacement for older Maxim Integrated versions of the same functional specification, maintaining pin compatibility while adhering to updated environmental manufacturing standards.

Replacement Considerations

MAX3318EIPWR