MAX232DWRG4

Overview

The MAX232DWRG4 is a dual driver and receiver RS-232 transceiver manufactured by Texas Instruments. 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 communication capability. It includes two drivers and two receivers, consuming approximately 10 mA of supply current. The component is designed for surface-mount installation in a 16-pin SOIC package. It functions reliably across an extended industrial temperature range from -40°C to +85°C and incorporates internal ESD protection mechanisms.

Feature Summary

• Integrates dual EIA-232 drivers and receivers for bidirectional serial communication
• Utilizes on-chip charge pump circuitry to generate required RS-232 voltage levels from a single 5-V supply
• Provides robust signal integrity through built-in ESD protection structures

Applications

• Industrial control systems requiring reliable serial data transmission
• Embedded devices interfacing microcontrollers with PC-based serial ports
• Communication modules in automotive diagnostic equipment

Procurement Notes

Verify the specific suffix 'DG4' or 'DRG4' against official Texas Instruments documentation to confirm lead-free status and RoHS compliance. Confirm the package type matches the design requirements, as variations exist between tube and tape-and-reel packaging. Ensure the selected variant aligns with the intended operating temperature range and interface standards before finalizing procurement orders.

Selection Notes

Select this component when a dual-channel RS-232 interface is required for applications operating within the -40°C to +85°C industrial temperature range. Compare power consumption and pin compatibility against alternative transceivers if system constraints are tight. Verify that the 120 kb/s data rate meets the application's throughput requirements and that the 16-pin SOIC footprint fits the PCB layout.

Part Context

This part belongs to the MAX232 family of RS-232 transceivers, widely used for converting TTL/CMOS logic levels to RS-232 voltages. The 'G4' suffix typically indicates a lead-free and RoHS-compliant version produced by Texas Instruments. It serves as a standard interface solution for legacy serial communication protocols in modern electronic designs.

Replacement Considerations

The MAX232DRG4 is a direct replacement variant differing primarily in packaging (tape-and-reel vs. tube). Other compatible parts include the MAX232IDR and MAX232IDRG4, which share identical electrical characteristics but may differ in temperature ranges or packaging formats.