MAX3223ECAP+

Overview

The MAX3223ECAP+ 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. Input hysteresis is 0.3V. Operating temperature range is -40°C to +85°C.

Feature Summary

• AutoShutdown technology reduces power consumption by disabling the onboard charge pump and drivers when idle.
• Integrated dual charge pumps generate required RS-232 voltages using only four small external capacitors.
• Provides enhanced electrostatic discharge protection on all transmitter outputs and receiver inputs.

Applications

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

Procurement Notes

Verify the ordering suffix 'CAP+' corresponds to the 20-lead SSOP package and the '-E' grade indicating an extended temperature range of -40°C to +85°C. Confirm RoHS compliance status through official manufacturer documentation or authorized distributors before finalizing procurement specifications.

Selection Notes

Select this component for applications requiring low-power standby modes and single-supply operation. Ensure the system logic voltage levels are compatible with the specified input thresholds. Verify that the required data rate does not exceed the guaranteed 120kbps limit under worst-case load conditions.

Part Context

This part belongs to the MAX3221/MAX3223/MAX3243 family of 3V-powered RS-232 transceivers. The MAX3223 variant specifically provides two drivers and two receivers, distinguishing it from the single-channel MAX3221 and the multi-channel MAX3243 within the same architectural family.

Replacement Considerations

MAX3223EAP+