MAX232ESE+T

Overview

The MAX232ESE+T is a dual-channel RS-232 driver and receiver manufactured by Analog Devices Inc./Maxim Integrated. It operates from a single +5V supply, utilizing an internal charge pump to generate the ±10V required for EIA/TIA-232E communication without external bipolar supplies. The device features two drivers and two receivers, supporting full-duplex data transmission at rates up to 120 kbps. It is housed in a 16-pin Narrow SOIC package and functions within an industrial temperature range of -40°C to +85°C.

Feature Summary

• Integrates dual charge-pump circuitry to convert a single +5V input into the necessary positive and negative voltages for RS-232 signaling.
• Provides complete interface translation between TTL/CMOS logic levels and standard RS-232 voltage swings.
• Supports full-duplex communication through independent transmitter and receiver channels.

Applications

• Interface translation between microcontrollers and RS-232 peripherals
• Multidrop RS-232 network connections
• Portable diagnostic equipment requiring serial communication

Procurement Notes

Verify that the component matches the specific 'MAX232' designation within the broader MAX220-MAX249 family documentation. Confirm the suffix '+T' corresponds to the tape-and-reel packaging format rather than tube packaging. Ensure the manufacturer identification aligns with Analog Devices or Maxim Integrated as specified in the official ordering information.

Selection Notes

Select this component when a design requires RS-232 connectivity powered exclusively by a +5V rail. It is suitable for applications where board space is limited but external capacitors are acceptable. Verify that the 120 kbps data rate meets system requirements and that the Narrow SOIC package dimensions fit the PCB layout constraints.

Part Context

This part belongs to the MAX220–MAX249 family of +5V-powered multichannel RS-232 drivers and receivers. While sharing core architecture with other family members, the MAX232 specifically provides two drivers and two receivers. It differs from integrated-capacitor variants like the MAX233 by requiring four external capacitors for the charge pump operation.

Replacement Considerations

Public confirmed substitute part numbers: MAX232AEESE+T, MAX232IESE+T.