MAX3232ESE-EV

Overview

The MAX3232ESE-EV is a dual-channel RS-232 transceiver manufactured by Maxim Integrated, operating within a 3.0V to 5.5V supply range. It integrates two drivers and two receivers with ±15kV ESD protection on I/O pins. The device utilizes a dual charge pump requiring four external 0.1μF capacitors for voltage generation. It supports data rates up to 250kbps and maintains RS-232 output levels at 120kbps. The ESE suffix indicates a TSSOP-20 package. In shutdown mode, the receiver remains active while consuming only 1μA of current.

Feature Summary

• Dual charge pump architecture enables true RS-232 performance from a single low-voltage power supply.
• Integrated ±15kV ESD protection on all serial interface pins ensures robust operation in industrial environments.
• Low-power shutdown mode reduces battery consumption while maintaining receiver monitoring capability.

Applications

• Connecting asynchronous communication controllers to serial connectors
• Portable equipment requiring low power consumption
• Industrial control systems with high ESD exposure

Procurement Notes

Verify the EVVO branding against Maxim Integrated official documentation, as EVVO is not a recognized manufacturer of this specific part number. Confirm that the ESE suffix strictly denotes the TSSOP-20 package type without functional deviations. Request original datasheets to validate pin compatibility with standard MAX242/MAX232 designs before procurement.

Selection Notes

Select this component when designing circuits requiring dual RS-232 channels with minimal external capacitance. Ensure the power supply voltage falls between 3.0V and 5.5V. Verify that the TSSOP-20 package fits the PCB layout constraints. Consider the 250kbps maximum data rate for signal integrity requirements.

Part Context

This component belongs to the MAX3232 family of RS-232 transceivers designed for low-voltage applications. It serves as a drop-in replacement for older MAX232/MAX242 devices but operates efficiently at lower voltages. The ESE variant specifically refers to the Thin Shrink Small Outline Package (TSSOP) with 20 pins.

Replacement Considerations

Direct pin-compatible replacements include MAX3232E, MAX3232IDW, and MAX3232IPW. These parts share identical functionality and pinouts. Verify temperature ranges and package types when substituting to ensure mechanical and thermal compatibility.