MAX232ECD

Overview

The MAX232ECD is a dual EIA-232 driver and receiver transceiver manufactured by Texas Instruments. It operates on a single 5V supply with a voltage range of 4.5V to 5.5V. The device supports full-duplex communication at data rates up to 120 kb/s. It features two drivers and two receivers within a 16-pin SOIC narrow package. The component functions across an industrial temperature range from -40°C to +85°C and includes built-in ESD protection.

Feature Summary

• Integrates charge pump circuitry to generate RS-232 voltage levels from a single 5V supply, eliminating the need for external dual-voltage sources.
• Provides full-duplex signal translation between TTL/CMOS logic levels and standard RS-232 voltage specifications.
• Incorporates internal electrostatic discharge (ESD) protection mechanisms to safeguard inputs and outputs against transient events.

Applications

• Serial communication interfaces in industrial control systems requiring robust signal transmission.
• Modem connections and peripheral interfacing in embedded computing hardware.
• Data acquisition systems utilizing microcontrollers for serial port expansion.

Procurement Notes

Verify the specific suffix 'ECD' against the official Texas Instruments datasheet to confirm the exact package type and temperature grade. Ensure compatibility with existing PCB footprints for the 16-SOIC narrow configuration. Confirm RoHS compliance status through current manufacturer documentation before finalizing procurement orders.

Selection Notes

Select this component when a dual-channel RS-232 interface is required within a compact surface-mount footprint. It is suitable for designs operating strictly within the 4.5V to 5.5V power domain. Consider alternative packages if through-hole mounting or higher data rate capabilities are necessary for the specific application requirements.

Part Context

This part belongs to the MAX232 family of RS-232 transceivers, widely used for serial communication. The 'E' designation typically indicates an extended industrial temperature range, while 'CD' specifies the 16-SOIC narrow package. This series serves as a standard solution for bridging microcontroller UARTs with RS-232 ports.

Replacement Considerations

MAX232IDR: Industrial temperature variant in SOIC package. MAX232N: PDIP package version for through-hole applications. MAX232ESE: Equivalent transceiver from Maxim Integrated.