MAX3319ECAE

Overview

The MAX3319ECAE is a single-channel RS-232 transceiver manufactured by Analog Devices Inc. under the Maxim Integrated brand, housed in an SSOP-16 package. It operates on a supply voltage ranging from +2.25V to +3.0V, typically at 2.5V. The device supports data rates up to 460kbps and features full-duplex communication with one driver and one receiver. Key electrical parameters include a propagation delay of 0.175µs, a maximum operating temperature of +85°C, and a minimum of -40°C. It provides 15kV ESD protection and draws only 1mA during operation.

Feature Summary

• AutoShutdown Plus feature enables automatic low-power shutdown when the cable is disconnected or peripherals are inactive.
• Proprietary low-dropout transmitter output stage ensures RS-232 compatibility within a narrow voltage range.
• Requires only four 0.1µF capacitors for dual-charge pump operation, minimizing external component count.

Applications

• Portable devices requiring low power consumption and RS-232 connectivity
• Battery-operated systems utilizing 2.5V power supplies
• Industrial equipment needing high ESD protection levels

Procurement Notes

Verify the specific suffix 'E' indicates industrial temperature range (-40°C to +85°C) and 'CAE' denotes the SSOP-16 package configuration. Confirm RoHS compliance status through official manufacturer documentation, as lead-free variants may carry different suffixes such as '+'. Ensure the source document explicitly lists this exact part number to avoid confusion with similar models like the MAX3319EEAE+T.

Selection Notes

Select this component when designing circuits that require RS-232 communication at data rates up to 460kbps with minimal power usage. It is suitable for applications where space is limited due to the small SSOP-16 footprint and reduced capacitor requirements. Ensure the system voltage remains within the +2.25V to +3.0V range to guarantee proper transmitter performance and charge pump functionality.

Part Context

This device belongs to the MAX3316–MAX3319 family of 2.5V RS-232 transceivers. These parts share common architecture featuring AutoShutdown Plus technology and dual-charge pumps. The MAX3319 specifically offers single-driver/single-receiver capability, distinguishing it from multi-channel variants within the same series designed for more complex interface requirements.

Replacement Considerations

The MAX3319EEAE+T is a verified substitute offering identical functional specifications but in a reel packaging format and potentially with RoHS-compliant construction. Verify pinout compatibility and ensure the replacement meets the required temperature and voltage specifications for the target application.