MAX3241EWI+G1Z

Overview

The MAX3241EWI+G1Z is a true RS-232 transceiver manufactured by Analog Devices Inc./Maxim Integrated. It features three drivers and five receivers, operating on a single +3.0V to +5.5V supply. The device guarantees data rates up to 250kbps with worst-case loads of 3kΩ in parallel with 1000pF. It incorporates an internal dual charge pump requiring four 0.1µF external capacitors. ESD protection is rated at ±15kV (Human Body Model) and ±8kV (IEC Contact Discharge). Operating temperature ranges from -40°C to +85°C. Supply current is typically 1mA, dropping to less than 1µA in shutdown mode.

Feature Summary

• Integrated dual charge pump generates ±5.5V from a single low-voltage supply using only four small external capacitors.
• Enhanced electrostatic discharge protection on all transmitter outputs and receiver inputs ensures robustness against high-voltage static events.
• Shutdown mode significantly reduces power consumption while maintaining active receiver monitoring capabilities for system wake-up.
• Complementary noninverting receiver outputs remain always active, allowing detection of serial activity even when the main logic is powered down.

Applications

• Notebook and subnotebook computers
• Battery-powered portable equipment
• Cell-phone data cables

Procurement Notes

Verify the specific suffix G1Z against manufacturer documentation to confirm lead-free/RoHS compliance status. Confirm package type matches the required 28-pin SOIC footprint. Check current production status as component availability may vary. Ensure environmental certifications align with project requirements before finalizing procurement.

Selection Notes

Select this component for applications requiring a complete serial port solution with three drivers and five receivers. It is suitable for space-constrained designs due to the efficient charge pump architecture. Consider the shutdown current specifications if battery life is critical. Verify that the 250kbps data rate meets the communication speed requirements of the target system.

Part Context

This part belongs to the MAX32xxE family of low-power RS-232 transceivers. It shares functional similarities with the MAX3222E and MAX3232E but offers a higher I/O count. The 'E' suffix indicates extended temperature range operation. The '+G1Z' designation typically denotes lead-free packaging compliant with RoHS directives.

Replacement Considerations

MAX3241EEWI+T is a compatible alternative offering identical electrical characteristics and pinout in a tape-and-reel package format. Both parts belong to the same MAX3241E series and maintain full functional compatibility for direct substitution in existing designs.