MAX3235EEPP

Overview

The MAX3235EEPP is a dual RS-232 transceiver manufactured by Analog Devices Inc./Maxim Integrated, housed in a 20-pin DIP package. It supports full-duplex communication with two drivers and two receivers at data rates up to 250 kbps. The device operates on a single 4.5V to 5.5V supply and features internal charge pumps for voltage generation. Key specifications include a propagation delay of 0.15 us, 1 mA operating current, and an extended industrial temperature range from -40°C to +85°C.

Feature Summary

• Integrates dual RS-232 transceivers with internal capacitors to minimize external component count
• Provides 15kV ESD protection on all RS-232 lines for enhanced robustness
• Features low power consumption with a shutdown mode reducing supply current to 1 uA

Applications

• Industrial control systems requiring reliable serial communication
• Portable instrumentation and medical devices
• Modems and fax machines utilizing RS-232 interfaces

Procurement Notes

Verify the specific suffix (e.g., EEPP) against the manufacturer's official datasheet to confirm pinout compatibility and package dimensions. Note that this part number may be discontinued or subject to limited availability; consult authorized distributors for current lifecycle status and valid replacement options before finalizing procurement plans.

Selection Notes

Select this component when a through-hole DIP package is required for prototyping or legacy board designs. Ensure the application environment falls within the specified -40°C to +85°C temperature range. Verify that the system power supply remains stable between 4.5V and 5.5V to guarantee proper operation of the internal charge pumps and signal integrity.

Part Context

This device belongs to the MAX3235E series of true ±3V to ±5.5V RS-232 transceivers. It is designed for applications where low power consumption and high reliability are critical. The EEPP variant specifically denotes the 20-pin plastic DIP packaging, distinguishing it from surface-mount equivalents like the ECWP or EEWP variants within the same functional family.

Replacement Considerations

Public confirmed substitute part numbers: MAX3235EEWP+G36, MAX3235ECWP+TG36.