MAX3232IDWRG4

Overview

The MAX3232IDWRG4 is a multichannel RS-232 line driver and receiver manufactured by Texas Instruments. It operates within a supply voltage range of 3 V to 5.5 V and supports data rates up to 250 kb/s. The device features two drivers and two receivers, providing full-duplex communication capabilities. It is housed in a 16-pin SOIC package with an industrial temperature rating from -40°C to +85°C. The component includes ±15-kV electrostatic discharge (ESD) protection on all RS-232 lines and draws only 1 mA of supply current during shutdown mode.

Feature Summary

• Integrated charge pump eliminates the need for external capacitors
• Provides robust ±15-kV ESD protection on transceiver lines
• Supports low-power operation with dedicated shutdown control pin

Applications

• Industrial serial communication systems
• Portable battery-powered instruments
• Modems and fax machines
• PDA and laptop computers

Procurement Notes

Verify the suffix G4 indicates compliance with RoHS directives and confirms lead-free packaging status as per manufacturer specifications. Ensure the IDWR designation matches the required industrial temperature grade (-40°C to +85°C) and SOIC-16 surface-mount package configuration for your specific design requirements.

Selection Notes

Select this component when designing systems requiring reliable RS-232 connectivity with high ESD immunity. The wide operating voltage range accommodates both 3-V and 5-V logic systems. Consider the 250-kb/s speed limit and the requirement for external charge-pump capacitors if space permits, as these define the performance envelope for standard serial interfaces.

Part Context

This part belongs to the MAX3232 family of multichannel RS-232 transceivers. It shares functional similarities with the TRS3232 series but maintains distinct pinout and specification characteristics defined by the original MAXIM design lineage acquired by Texas Instruments. The 'G4' suffix specifically denotes environmental compliance updates.

Replacement Considerations

The TRS3232IDWRG4 is a documented equivalent offering similar electrical characteristics and pin compatibility. Verify that the replacement maintains the same SOIC-16 footprint and industrial temperature range before implementation.