MAX3319EEAE+T

Overview

The MAX3319EEAE+T is a single-channel, full-duplex RS-232 transceiver manufactured by Analog Devices Inc./Maxim Integrated. It operates on a single +2.25V to +3.0V supply and utilizes a dual charge pump for voltage generation. The device supports data rates up to 460kbps with a typical propagation delay of 0.175µs. It features AutoShutdown Plus technology, reducing supply current to 1µA during inactivity. Electrical characteristics include ±4V output swings and 1mA operating current. The component is housed in a 16-pin SSOP package and functions within an industrial temperature range of -40°C to +85°C.

Feature Summary

• AutoShutdown Plus functionality automatically reduces power consumption when the interface is idle or disconnected.
• Integrated dual charge pumps enable RS-232 compatibility using only four small capacitors.
• Logic-level READY output indicates when internal voltage regulation is stable and transmission can begin.

Applications

• Palmtop Computers
• Hand-Held Instruments
• GPS Systems

Procurement Notes

Verify the specific suffix EEAE+T against official manufacturer documentation to confirm the extended temperature range (-40°C to +85°C) and SSOP-16 packaging. Confirm RoHS compliance status through the datasheet before finalizing procurement specifications.

Selection Notes

Select this component for applications requiring low-voltage operation between 2.25V and 3.0V. It is suitable for systems needing minimal external components due to the integrated charge pump. Ensure the design accommodates the 1µA shutdown current requirement for maximum battery efficiency.

Part Context

This part belongs to the MAX3316–MAX3319 family of 2.5V RS-232-compatible transceivers. While sharing core architecture with other members like the MAX3316, it is distinct as a single-driver/single-receiver device featuring AutoShutdown Plus capabilities.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.

FAQ

How does the MAX3319EEAE+T achieve low power consumption?

It utilizes AutoShutdown Plus technology, which detects inactivity on transmitter or receiver inputs for more than 30 seconds and automatically enters a 1µA shutdown mode.

What is the function of the READY pin?

The READY pin asserts high when the internal charge pump regulates the negative supply voltage below -2.75V, indicating the device is ready to transmit.