MAX3232ECAE+

Overview

The MAX3232ECAE+ is an RS-232 transceiver manufactured by Analog Devices Inc./Maxim Integrated. It features two drivers and two receivers, supporting full-duplex communication at data rates up to 250 kbit/s. The device operates on a single 3V to 5.5V supply and includes a dual charge-pump circuit requiring four external capacitors. It provides ±15kV IEC ESD protection on serial-port connection pins. The component is housed in a TSSOP-16 package.

Feature Summary

• Integrated dual charge-pump circuit for generating RS-232 voltage levels from a single power supply
• Built-in ±15kV IEC electrostatic discharge protection on all serial port connection pins
• Full-duplex operation with two independent line drivers and two line receivers
• Compatible with 5V logic inputs while operating from a 3.3V supply

Applications

• Industrial PCs
• Wired networking equipment
• Data center and enterprise computing systems
• Battery-powered portable devices

Procurement Notes

Verify the specific suffix 'AE' against official manufacturer documentation to confirm package type and temperature range. Ensure the source document explicitly identifies this part as an Analog Devices or Maxim Integrated product rather than a Texas Instruments catalog item. Confirm RoHS compliance status through the provided datasheet before procurement.

Selection Notes

Select this component when designing interfaces between TTL/CMOS logic and RS-232 ports requiring robust ESD protection. The 250 kbit/s speed is suitable for standard asynchronous communication. Verify that the system power supply falls within the 3V to 5.5V range and that sufficient board space is available for the required four external capacitors.

Part Context

This device belongs to the MAX3232 family of low-power RS-232 transceivers. It serves as a bridge between microcontrollers and serial connectors. The 'E' designation typically indicates an extended industrial temperature range. The 'AE' suffix specifies the particular package variant and manufacturing revision defined by the original manufacturer.

Replacement Considerations

The SNx5C3232 is identified as a pin-compatible alternative offering higher speeds up to 1 Mbit/s. Catalog versions such as MAX3232E may be considered if automotive qualification is not required. Verify electrical compatibility and package dimensions before substituting.