MAX232IDWRE4

Overview

The MAX232IDWRE4 is an RS-232 transceiver manufactured by Texas Instruments, designed for dual driver and receiver applications. 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 capabilities. It is housed in a SOIC-Narrow-16 package suitable for surface mount installation. The component functions within an industrial temperature range from -40°C to +85°C and includes built-in ESD protection. The quiescent supply current is typically 10 mA.

Feature Summary

• Integrates dual drivers and dual receivers for complete RS-232 signal conversion
• Utilizes internal charge pump circuitry requiring only four external capacitors
• Provides electrostatic discharge (ESD) protection on all pins

Applications

• Serial port interface circuits for personal computers
• Modem interconnection systems
• Portable battery-powered instruments requiring RS-232 connectivity

Procurement Notes

Verify the specific suffix 'RE4' against the manufacturer's latest documentation to confirm it denotes tape-and-reel packaging rather than tube packaging. Confirm RoHS compliance status directly with the supplier or official datasheet, as environmental declarations can vary by production batch. Ensure the ordering quantity aligns with the reel specifications if high-volume procurement is intended.

Selection Notes

Select this component when a dual-channel RS-232 solution is required for 5V logic systems. The wide operating temperature range makes it suitable for industrial environments. Compare against the MAX232ID variant if tube packaging is preferred over the reel format indicated by the RE4 suffix. Ensure the application does not require higher data rates than 120 kb/s.

Part Context

This part belongs to the MAX232 family of RS-232 transceivers, which are widely used for converting TTL/CMOS levels to RS-232 voltages. The IDWRE4 designation indicates a specific package style (SOIC-16), temperature grade (Industrial), and packaging method (Reel). It serves as a standard interface bridge between microcontrollers and serial ports.

Replacement Considerations

The MAX232ID is a pin-compatible alternative differing primarily in packaging type. Other compatible devices include the MAX232ACPE and MAX232IN, though these may differ in voltage ranges or temperature specifications. Verify electrical parameters before substitution.