MAX3235EEWP+TG36

Overview

The MAX3235EEWP+TG36 is a dual RS-232 transceiver manufactured by Analog Devices Inc./Maxim Integrated. It operates on a single 3V to 5.5V power supply and supports data rates up to 250kbps. The device integrates two drivers and two receivers in a 20-pin SOIC package. Key electrical specifications include a 1mA typical supply current, 15kV ESD protection, and a propagation delay of 0.15us. It functions within an industrial temperature range of -40°C to +85°C and includes a shutdown feature for power conservation.

Feature Summary

• Integrates internal charge pump capacitors to eliminate external components
• Provides robust 15kV electrostatic discharge protection on all RS-232 lines
• Features a low-power shutdown mode to extend battery life in portable applications

Applications

• Industrial control systems requiring reliable serial communication
• Portable instrumentation and medical devices
• Modem and fax machine interfaces

Procurement Notes

Verify the exact suffix configuration against official datasheets, as variations like ECWP versus EEWP indicate different temperature grades. Confirm RoHS compliance status, as older batches may differ from current manufacturing runs. Check for obsolescence notices or product change notifications that may affect long-term availability and sourcing strategies.

Selection Notes

Select this component when a dual-channel RS-232 interface is required with integrated capacitance. Ensure the operating voltage matches the system's 3V or 5V rail. Verify that the -40°C to +85°C temperature range meets environmental requirements. Compare pin compatibility with existing designs if replacing legacy parts.

Part Context

This part belongs to the MAX323x family of RS-232 transceivers known for their simplicity and reliability. The EEWP variant specifically denotes the extended industrial temperature grade. It shares architectural similarities with the MAX3233 but offers dual driver/receiver channels instead of quad configurations.

Replacement Considerations

Direct pin-compatible alternatives include the MAX3232E and MAX3233E series. Verify voltage levels and temperature ranges before substitution. Cross-reference with MAX3235ECWP for commercial grade equivalents if industrial ratings are not critical.