MAX3232EIPW

Overview

The MAX3232EIPW is a dual RS-232 transceiver manufactured by Texas Instruments, housed in a 16-pin TSSOP package. It operates on a single 3V to 5.5V supply and supports data rates up to 250kbit/s with a maximum slew rate of 30V/μs. The device integrates two drivers and two receivers, featuring ±15kV IEC ESD protection on all serial port pins. Typical standby current is 300μA, requiring four external capacitors for the charge pump circuit. It meets TIA/EIA-232-F standards and functions within an operating temperature range of -40°C to +85°C.

Feature Summary

• Integrated dual charge-pump circuit enabling operation from a single low-voltage power supply without external inductors.
• Robust electrostatic discharge protection rated at ±15kV IEC standard across all serial port connection pins.
• Full compatibility with TIA/EIA-232-F and ITU v.28 communication standards for reliable data transmission.
• Logic input acceptance of 5V signals while powered by a 3.3V supply, facilitating mixed-voltage system integration.

Applications

• Industrial PCs
• Wired networking equipment
• Data center and enterprise computing systems

Procurement Notes

Verify that the specific part number matches the required automotive qualification status if applicable, as suffixes may indicate catalog versus qualified versions. Confirm the package type corresponds to the design footprint requirements. Ensure environmental compliance documentation aligns with project specifications before finalizing procurement orders.

Selection Notes

Select this component when designing systems requiring full-duplex RS-232 communication over short distances with limited power budgets. The integrated charge pump simplifies layout by reducing external component count compared to older generations. Consider the thermal resistance characteristics for high-density PCB layouts where heat dissipation might be constrained.

Part Context

This device belongs to the MAX3232 family of multichannel RS-232 line drivers and receivers. It serves as a pin-compatible alternative to higher-speed devices like the SNx5C3232. The product line is designed to provide robust serial communication interfaces for battery-powered and portable electronic equipment.

Replacement Considerations

The SNx5C3232 is identified as a pin-compatible alternative offering higher speed capabilities. Verify electrical parameter compatibility and package dimensions before substituting components in existing designs.

FAQ

What is the typical standby current consumption?

The typical standby current is 300μA when operating at VCC = 3.3V or 5V.

Does the device support 5V logic inputs with a 3.3V supply?

Yes, the device accepts 5V logic inputs even when powered by a 3.3V supply.

How many external capacitors are required for operation?

Four external capacitors are required to support the internal dual charge-pump circuit.