MAX3232IDWR

Overview

The MAX3232IDWR is a dual transceiver manufactured by Texas Instruments, designed for RS-232 communication. It operates within a supply voltage range of 3 V to 5.5 V and supports data rates up to 250 kb/s in full duplex mode. The device integrates two drivers and two receivers, consuming only 1 mA of operating power current. It is housed in a SOIC-16 surface mount package and functions reliably across an extended temperature range from -40 °C to +85 °C. Additionally, it provides 15 kV electrostatic discharge protection.

Feature Summary

• Integrates dual drivers and receivers for full-duplex RS-232 communication
• Operates on a single 3 V to 5.5 V power supply with low 1 mA current consumption
• Provides robust 15 kV electrostatic discharge protection

Applications

• Industrial control systems requiring reliable serial communication
• Portable battery-powered devices due to low power consumption
• Modems and facsimile machines utilizing RS-232 interfaces

Procurement Notes

Verify the specific suffix 'IDWR' to confirm the industrial temperature grade (-40°C to +85°C) and the SOIC-16 tape-and-reel packaging format. Ensure compatibility with the target PCB footprint and check RoHS compliance status against the latest manufacturer documentation before finalizing procurement orders.

Selection Notes

Select this component when a dual-channel RS-232 interface is required for industrial environments. The IDWR variant specifically suits applications needing extended temperature tolerance compared to commercial grades. Consider the SOIC-16 package dimensions for layout constraints and verify that the 250 kb/s speed meets system timing requirements.

Part Context

This part belongs to the MAX3232 family of multichip RS-232 line drivers and receivers. It shares core functionality with variants like the MAX3232EIPWR but differs in temperature rating and package type. The IDWR designation indicates the industrial grade and specific reel packaging configuration provided by Texas Instruments.

Replacement Considerations

Direct substitutes include other MAX3232 variants such as MAX3232IDW or MAX3232IDR, ensuring matching electrical specifications and pinout compatibility. Verify package dimensions and thermal characteristics when cross-referencing with equivalent parts from other manufacturers.