MAX3243EIDWRG4

Overview

The MAX3243EIDWRG4 is a low-power RS-232 transceiver manufactured by Texas Instruments, designed for multichannel communication applications. It integrates three drivers and five receivers within a single SOIC-28 package. The device operates on a single power supply ranging from 3 V to 5.5 V, with a typical operating current of 1 mA. It supports data rates up to 500 kb/s and features full-duplex transmission capabilities. The component includes an integrated shutdown mode to minimize power consumption during idle periods. It provides ESD protection rated at 15 kV according to the Human Body Model specification.

Feature Summary

• Integrates three independent drivers and five receivers for comprehensive RS-232 connectivity
• Features a dedicated shutdown pin to significantly reduce quiescent current consumption
• Provides robust electrostatic discharge protection meeting industrial reliability standards

Applications

• Industrial control systems requiring reliable serial communication
• Portable battery-powered equipment utilizing RS-232 interfaces
• Modems and fax machines needing low-power line driving

Procurement Notes

Verify the specific suffix G4 indicates RoHS compliance and green packaging status before procurement. Confirm the SOIC-28 package dimensions match your PCB footprint requirements. Ensure the voltage range aligns with your system's power supply rails. Check for any specific tape-and-reel specifications required for automated assembly processes.

Selection Notes

Select this component when three drivers and five receivers are required in a single package. It is suitable for designs needing low standby current due to the shutdown feature. Consider the 500 kb/s speed limit for high-speed applications. Verify that the SOIC-28 package fits within the available board space constraints compared to wider or smaller alternatives.

Part Context

This part belongs to the MAX3243E series of RS-232 transceivers. It shares functional similarities with the MAX3243IDW but differs in packaging and specific electrical characteristics like data rate. The IDWRG4 variant specifically denotes the reel packaging format and lead-free construction. It serves as a direct replacement for older generations of multichannel RS-232 drivers in existing designs.

Replacement Considerations

The MAX3243IDW is a related part number within the same family but offers a lower data rate of 250 kb/s. The TRS3243EIRHBRG4 provides similar functionality in a VQFN-32 package. Verify pin compatibility and thermal performance when substituting between different package types.