MAX3223CAP+

Overview

The MAX3223CAP+ is a dual-driver, dual-receiver RS-232 transceiver in a 20-pin SSOP package. It operates from a single +3.0V to +5.5V supply and achieves 1µA supply current via AutoShutdown™ when no valid signal is detected on receiver inputs for 30µs. The device supports data rates up to 120kbps (typical 235kbps) with ±5.4V output swings. It requires only 0.1µF capacitors for 3.3V operation. Operating temperature range is 0°C to +70°C.

Feature Summary

• AutoShutdown feature reduces supply current to 1µA upon detecting invalid receiver input levels
• Integrated dual charge-pump generates required RS-232 voltages from a single low-voltage supply
• Requires minimal external capacitance of 0.1µF for standard 3.3V applications

Applications

• Battery-powered equipment
• Hand-held devices
• Portable diagnostics equipment

Procurement Notes

Verify the specific suffix 'CAP+' corresponds to the 20-SSOP package and commercial temperature range (0°C to +70°C). Confirm RoHS compliance status as indicated by the '+' suffix. Ensure the source document matches the exact part number to avoid confusion with the industrial grade 'E' variant or other pin-compatible packages.

Selection Notes

Select this component for systems requiring low-power standby modes through automatic shutdown detection. Verify that the 120kbps guaranteed data rate meets interface requirements. Check compatibility with the host logic family at the intended operating voltage. Ensure the application environment remains within the specified 0°C to +70°C temperature limits.

Part Context

This part belongs to the MAX3221/MAX3223/MAX3243 family of 3V-powered RS-232 transceivers. The MAX3223 specifically provides two drivers and two receivers. It shares core features like AutoShutdown and charge-pump technology with the single-channel MAX3221 and the multi-channel MAX3243.

Replacement Considerations

MAX3223EAP+ offers identical functionality in the same 20-SSOP package but supports an extended temperature range of -40°C to +85°C.