MAX232EID

Overview

The MAX232EID is a dual driver/receiver RS-232 transceiver manufactured by Texas Instruments. It operates on a single 4.5 V to 5.5 V power supply and supports data rates up to 120 kb/s. The device features full-duplex communication with two drivers and two receivers, housed in a 16-pin SOIC-Narrow package. It functions within an industrial temperature range of -40°C to +85°C and draws approximately 10 mA of operating current.

Feature Summary

• Integrates dual EIA-232 drivers and receivers for full-duplex serial communication
• Includes internal charge pump circuitry requiring only external capacitors
• Provides electrostatic discharge (ESD) protection on all RS-232 lines

Applications

• Industrial control systems requiring RS-232 connectivity
• Embedded microcontroller UART interface expansion
• Point-to-point serial data transmission links

Procurement Notes

Verify the specific suffix 'EID' against the manufacturer's official datasheet to confirm the exact package variant and temperature grade. Confirm RoHS compliance status and check for end-of-life notices or obsolescence warnings before finalizing procurement plans.

Selection Notes

Select this component when a standard 5V logic interface is required for RS-232 signaling. Ensure the design accommodates the necessary external capacitors for the charge pump. Verify that the 120 kb/s speed meets application requirements compared to higher-speed alternatives like the MAX3232.

Part Context

This part belongs to the MAX232 family of dual RS-232 transceivers. It serves as a legacy interface solution for converting TTL/CMOS levels to RS-232 voltages. The 'EID' suffix typically denotes an extended temperature range and surface-mount packaging.

Replacement Considerations

Consider the MAX3232EID for improved performance with lower power consumption and support for 3.3V supplies. The TRS3232EID offers enhanced ESD protection capabilities while maintaining pin compatibility.