MAX3243CDW

Overview

The MAX3243CDW is a Texas Instruments RS-232 transceiver featuring three drivers and five receivers in a 28-pin SOIC package. It supports full-duplex communication at data rates up to 250 kbps with a propagation delay of 0.15 µs. Operating on a single 3 V to 5.5 V supply, it draws only 1 mA of quiescent current and includes a shutdown mode for power conservation. The device provides 15 kV ESD protection and functions within a commercial temperature range of 0°C to +70°C.

Feature Summary

• Integrates three independent line drivers and five receivers for multi-channel serial communication
• Includes dedicated control pins for managing low-power shutdown states
• Provides robust electrostatic discharge protection rated at 15 kV

Applications

• Industrial equipment requiring reliable RS-232 connectivity
• Portable battery-powered instrumentation systems
• Modems and portable terminals

Procurement Notes

Verify the specific suffix against official manufacturer documentation to confirm pinout compatibility and electrical specifications. Ensure the component meets RoHS requirements if mandated by project standards. Cross-reference the datasheet revision date to validate technical parameters before integration into final designs.

Selection Notes

Select this component when designing circuits that require multiple transmit and receive channels within a compact surface-mount footprint. The wide operating voltage range accommodates both 3.3 V and 5 V logic systems. Consider the thermal performance of the SOIC package relative to ambient conditions during operation.

Part Context

This part belongs to the MAX3243 family of multi-channel RS-232 transceivers designed for low-power applications. The series offers various packaging options including SSOP, TSSOP, and VQFN to suit different board space constraints while maintaining consistent electrical performance across the product line.

Replacement Considerations

MAX3243IDWR: Industrial temperature grade variant (-40°C to +85°C) in SOIC-28 package.