MAX3226EETE+T

Overview

The MAX3226EETE+T is a single-channel, full-duplex RS-232 transceiver manufactured by Analog Devices Inc./Maxim Integrated. It operates on a +3.0V to +5.5V supply and guarantees a data rate of 250kbps. The device features AutoShutdown Plus technology, reducing supply current to 1μA when idle. It includes ±15kV ESD protection on I/O pins and utilizes a dual charge pump requiring four 0.1μF capacitors. Packaged in a 16-pin TQFN with an exposed pad, it supports an operating temperature range from -40°C to +85°C.

Feature Summary

• AutoShutdown Plus functionality automatically reduces power consumption during periods of inactivity or cable disconnection.
• Integrated dual charge pump generates internal voltage rails for true RS-232 signaling using minimal external components.
• Enhanced electrostatic discharge protection ensures robustness against high-voltage static events on communication lines.

Applications

• Notebook, subnotebook, and palmtop computers
• Cellular phones and battery-powered equipment
• Hand-held devices and peripherals

Procurement Notes

Verify the specific suffix 'EETE+' corresponds to the required thermal grade (-40°C to +85°C) and tape-and-reel packaging format. Confirm that the component meets RoHS compliance standards as indicated by the '+' designation. Cross-reference the manufacturer's latest documentation to ensure availability status matches current supply chain conditions.

Selection Notes

Select this component for applications requiring a single transmitter and receiver within space-constrained designs. Ensure the system logic levels are compatible with the TTL/CMOS inputs and outputs. Verify that the available board space accommodates the required four 0.1μF capacitors for the charge pump circuitry.

Part Context

This part belongs to the MAX3224E through MAX3245E family of low-power RS-232 transceivers. It shares core architectural features with other members of the series, such as the MAX3224E and MAX3227E, differing primarily in channel count and guaranteed data rates. The family is designed for portable electronics requiring efficient power management.

Replacement Considerations

Direct functional substitutes include the MAX3224E (2 drivers/receivers) and MAX3227E (1 driver/receiver, 1Mbps). Ensure replacement parts maintain the same TQFN-EP-16 package and extended temperature rating if environmental constraints apply.