MAX3319CAE

Overview

The MAX3319CAE is a single RS-232 transceiver from the MAX3316–MAX3319 family, designed for operation with a single +2.25V to +3.0V power supply. It features a proprietary low-dropout transmitter output stage and a dual-charge pump requiring only four 0.1µF capacitors. The device supports data rates up to 460kbps and achieves a typical supply current of 1µA through AutoShutdown Plus™ technology. It provides full-duplex communication in an SSOP-16 package.

Feature Summary

• AutoShutdown Plus™ feature enables ultra-low 1µA supply current by automatically entering shutdown mode when no signal is present
• Proprietary low-dropout transmitter output stage ensures RS-232-compatible performance across the minimum voltage range
• Dual-charge pump design minimizes external component count by requiring only four 0.1µF capacitors

Applications

• Portable battery-powered devices requiring minimal standby current
• Handheld terminals and mobile communication equipment
• Industrial control systems with limited power budgets

Procurement Notes

Verify the specific suffix against official documentation, as variations may indicate lead-free status or packaging differences. Confirm RoHS compliance and manufacturing origin directly with Analog Devices or authorized distributors. Ensure the source document explicitly identifies the part number to avoid confusion with similar variants in the MAX331x series.

Selection Notes

Select this component for applications requiring full-duplex RS-232 communication at speeds up to 460kbps with a single 2.5V supply. It is suitable where space constraints limit capacitor usage and low power consumption is critical. Compare against the MAX3232 if higher speed or 5V operation is required, noting that the MAX3319 offers superior power efficiency at lower voltages.

Part Context

The MAX3319CAE belongs to the MAX3316–MAX3319 family of low-power RS-232 transceivers. These devices share a common architecture utilizing a dual-charge pump and low-dropout outputs. The CAE suffix typically denotes a commercial temperature range and SSOP-16 packaging, distinguishing it from industrial grade or alternative package options within the same functional family.

Replacement Considerations

The MAX3316EEAE+T is a verified substitute offering identical functionality and pinout compatibility. Both parts support 460kbps data rates and 1µA shutdown current. Verify that the replacement matches the required operating temperature range and package dimensions before integration.