MAX3232EPE+

Overview

The MAX3232EPE+ is a dual driver and receiver RS-232 transceiver manufactured by Analog Devices Inc./Maxim Integrated. It operates on a single 3V to 5.5V supply and utilizes an internal dual charge pump requiring four external capacitors. The device provides two drivers and two receivers, supporting data rates up to 250kbps with a maximum slew rate of 30V/μs. It features ±15kV IEC ESD protection on all serial port connection pins, including ground. The component is housed in a 16-pin DIP package and functions within a temperature range of -40°C to 85°C.

Feature Summary

• Dual line drivers and receivers for full-duplex asynchronous communication
• Integrated dual charge pump enabling operation from a single low-voltage supply
• Enhanced electrostatic discharge protection on all serial interface pins

Applications

• Industrial PCs
• Wired networking equipment
• Battery-powered handheld systems

Procurement Notes

Verify the specific suffix 'PE' confirms the 16-pin DIP package variant. Confirm RoHS compliance status as indicated by the '+' designation. Check current product lifecycle status, as older Maxim products may be obsolete or subject to last-time buys. Ensure the supplier provides valid traceability documentation for automotive-grade requirements if applicable.

Selection Notes

Select this component when a true RS-232 interface is required for 3V or 5V logic systems without generating negative voltage rails externally. Verify that the 250kbps data rate meets system timing constraints. Ensure the PCB layout accommodates the 16-pin DIP footprint and allows sufficient clearance for the four required charge pump capacitors near the V+ and V- pins.

Part Context

This part belongs to the MAX3232 family of low-power RS-232 transceivers designed for portable and battery-operated applications. The 'E' suffix typically denotes extended industrial temperature ranges, while the 'PE' indicates the specific through-hole DIP packaging. It serves as a bridge between microcontroller TTL/CMOS levels and standard RS-232 serial ports.

Replacement Considerations

SNx5C3232 is identified as a pin-compatible high-speed alternative. Catalog versions such as MAX3232E are available as non-automotive equivalents.