MAX232IDRG4

Overview

The MAX232IDRG4 is a dual driver and receiver integrated circuit designed for RS-232 communication. It operates within a supply voltage range of 4.5 V to 5.5 V, with a typical operating voltage of 5 V. The device supports data rates up to 120 kb/s and features full-duplex transmission capability. It includes two drivers and two receivers without a shutdown function. The component functions reliably across an extended temperature range from -40°C to +85°C. Power consumption is characterized by a working supply current of 10 mA. Propagation delay is specified at 0.5 µs. It is housed in a 16-pin SOIC narrow package.

Feature Summary

• Integrates dual EIA-232 drivers and receivers on a single chip
• Provides full-duplex communication capability for serial data transfer
• Includes internal charge pump circuitry to generate required voltages
• Features built-in electrostatic discharge (ESD) protection

Applications

• RS-232 serial port interface implementation
• Modem connection circuits
• Industrial control system communication links
• Point-of-sale terminal interfaces

Procurement Notes

Verify the specific suffix 'RG4' indicates tape and reel packaging configuration distinct from tube variants. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure the component matches the required 16-SOIC footprint dimensions for PCB layout compatibility. Validate that the extended industrial temperature rating aligns with the final product's environmental operating conditions.

Selection Notes

Select this component when a dual-channel RS-232 transceiver is required for standard 5V logic systems. It serves as a direct replacement for the MAX232IDR in surface-mount designs requiring reel packaging. Consider the 120 kb/s speed limit when designing for high-baud-rate applications where faster alternatives may be necessary. Verify power supply stability within the 4.5V to 5.5V window to ensure signal integrity.

Part Context

This part belongs to the MAX232 family of RS-232 transceivers manufactured by Texas Instruments. The 'I' designation specifies the industrial temperature grade range. The 'DG4' suffix denotes the SOIC-Narrow-16 package type and RoHS-compliant manufacturing process. It is a successor variant to earlier versions like the MAX232IDRE4, maintaining functional compatibility while updating packaging and compliance standards.

Replacement Considerations

MAX232IDR is the primary equivalent offering identical electrical specifications in cut-tape or tube formats. MAX232IDRE4 provides the same functionality with alternative packaging suffixes. Both parts maintain pin-to-pin compatibility and share the same core transceiver architecture.