MAX3226EEAE+T

Overview

The MAX3226EEAE+T is a single-driver, single-receiver RS-232 transceiver manufactured by Analog Devices Inc./Maxim Integrated. It operates on a +3.0V to +5.5V supply and achieves a typical supply current of 1µA via AutoShutdown Plus technology. The device guarantees a maximum data rate of 250kbps and features ±15kV ESD protection on I/O pins. It utilizes a dual charge pump requiring four 0.1µF capacitors for operation. The component is housed in a 16-pin SSOP package and supports an operating temperature range from -40°C to +85°C.

Feature Summary

• AutoShutdown Plus functionality automatically reduces power consumption when the interface is idle or disconnected.
• Integrated dual charge pump generates required RS-232 voltage levels from low-voltage supplies using minimal external components.
• Proprietary low-dropout transmitter output stage ensures true RS-232 performance across the full operating voltage range.

Applications

• Notebook, subnotebook, and palmtop computers
• Cellular phones and handheld equipment
• Battery-powered peripherals and printers

Procurement Notes

Verify the specific suffix 'E' indicates the extended industrial temperature range (-40°C to +85°C) compared to commercial variants. Confirm the '+T' designation corresponds to the reel packaging format. Ensure compatibility with existing BIOS configurations as the AutoShutdown feature operates transparently without software modifications.

Selection Notes

Select this model over the MAX3227 variant if the application requires a guaranteed 250kbps data rate rather than 1Mbps. Verify that the single driver/receiver configuration meets system requirements, as other family members offer multiple channels. Consider the SSOP package dimensions against available PCB real estate constraints.

Part Context

This component belongs to the MAX3224–MAX3227/MAX3244/MAX3245 family of 3V-powered RS-232 transceivers. The family shares common features such as AutoShutdown Plus and UCSP packaging options. The MAX3226 specifically provides one driver and one receiver, distinguishing it from multi-channel counterparts like the MAX3225.

Replacement Considerations

Public confirmed substitute part numbers: MAX3226EEAE+, MAX3226CPP+ (if temperature range permits).