MAX3243EIPWR

Overview

The MAX3243EIPWR is a fully compliant RS-232 transceiver manufactured by Texas Instruments, designed for multi-channel communication applications. It integrates three drivers and five receivers within a single integrated circuit, supporting full-duplex data transmission. The device operates on a single power supply ranging from 3V to 5.5V and supports data rates up to 500kbps. It utilizes a 28-pin TSSOP package with a width of 4.40mm. The component functions reliably across an extended industrial temperature range of -40°C to +85°C. Key electrical specifications include a receiver hysteresis of 500mV and propagation delay of 0.15µs.

Feature Summary

• Integrates three independent drivers and five independent receivers for comprehensive multi-channel connectivity
• Features robust electrostatic discharge protection rated at 15kV according to the Human Body Model
• Includes a shutdown mode that significantly reduces power consumption during idle periods
• Utilizes small external charge pump capacitors to generate required RS-232 voltage levels

Applications

• Industrial equipment requiring reliable serial communication interfaces
• Medical instrumentation utilizing RS-232 data transfer protocols
• Portable battery-powered devices benefiting from low standby current modes
• Modems and fax machines requiring full-duplex signal processing

Procurement Notes

Verify the specific suffix IPWR confirms the TSSOP-28 package and industrial temperature grade (-40°C to +85°C). Confirm RoHS compliance status matches current manufacturing standards. Check for alternate ordering codes such as 296-19810-2-ND for tape-and-reel quantities. Ensure the source document explicitly identifies Texas Instruments as the manufacturer rather than a distributor.

Selection Notes

Select this component when three drivers and five receivers are simultaneously required in a compact form factor. Choose the E-grade variant for operation in environments exceeding commercial temperature limits. Consider the IPWR suffix specifically for surface-mount assembly processes utilizing thin-shrink small-outline packages. Verify compatibility with 3.3V and 5V logic systems before integration into the design.

Part Context

This part belongs to the MAX3243E series of RS-232 transceivers from Texas Instruments. It shares functional similarities with other variants like the MAX3243EIDBR but differs in packaging technology. The IPWR designation specifically denotes the TSSOP footprint, distinguishing it from SSOP or SOIC alternatives within the same product family.

Replacement Considerations

The ICL3243EIVZ from Renesas Electronics Corporation is documented as a direct replacement option.