MAX3223CPP+

Overview

The MAX3223CPP+ is a dual-driver, dual-receiver RS-232 transceiver in a 20-pin Plastic DIP package. It operates from a single +3.0V to +5.5V supply and features AutoShutdown technology that reduces supply current to 1µA when no valid signal is detected on receiver inputs for 30µs. The device guarantees a 120kbps data rate with worst-case loads of 3kΩ parallel with 1000pF, while typical operation supports up to 235kbps. It utilizes internal dual charge pumps requiring only 0.1µF capacitors for 3.3V operation. The component provides ±15kV ESD protection on all transmitter outputs and receiver inputs.

Feature Summary

• AutoShutdown functionality automatically disables the onboard power supply and drivers upon detecting invalid signal levels, significantly reducing power consumption during idle periods.
• Integrated dual charge-pump circuitry generates required RS-232 voltage levels from a single low-voltage supply, eliminating the need for external ±12V sources.
• High electrostatic discharge protection ensures robustness against static events on both input and output lines.

Applications

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

Procurement Notes

Verify the specific suffix CPP+ corresponds to the 20-pin Plastic DIP package variant with an operating temperature range of 0°C to +70°C. Confirm RoHS compliance status through official manufacturer documentation or authorized distributors before procurement.

Selection Notes

Select this component for applications requiring full-duplex RS-232 communication with minimal standby power consumption. Ensure the system design accommodates the 20-pin Plastic DIP footprint and validates compatibility with the 0°C to +70°C industrial temperature range requirements.

Part Context

This part belongs to the MAX3221/MAX3223/MAX3243 family of 3V-powered RS-232 transceivers. While the MAX3221 offers one driver/receiver and the MAX3243 provides three drivers and five receivers, the MAX3223 specifically delivers two drivers and two receivers in various package options including SSOP, TSSOP, and Plastic DIP.

Replacement Considerations

MAX3223EPP+