MAX3224CAP+

Overview

The MAX3224CAP+ is a dual RS-232 transceiver manufactured by Analog Devices Inc./Maxim Integrated, housed in a 20-pin SSOP package. It operates on a single +3.0V to +5.5V supply and guarantees a data rate of 250kbps. The device features AutoShutdown Plus technology, achieving a typical supply current of 1μA when inactive. It includes two drivers and two receivers with full-duplex communication capability. ESD protection is rated at ±15kV for air discharge and ±8kV for contact discharge. The operating temperature range is specified from 0°C to +70°C.

Feature Summary

• AutoShutdown Plus functionality automatically reduces power consumption by shutting down internal charge pumps during periods of inactivity or cable disconnection.
• Integrated dual charge pump generates required positive and negative voltage rails directly from the single low-voltage supply.
• Enhanced electrostatic discharge protection safeguards transmitter outputs and receiver inputs against high-voltage static events.

Applications

• Notebook, subnotebook, and palmtop computers
• Cellular phones and battery-powered equipment
• Hand-held devices and peripherals such as printers

Procurement Notes

Verify the specific suffix CAP+ corresponds to the 20-pin SSOP package and commercial temperature range (0°C to +70°C). Confirm lead-free/RoHS compliance status via the manufacturer's official documentation before procurement. Ensure the ordering part number matches the exact pinout and electrical specifications required for the design.

Selection Notes

Select this component for applications requiring low-power standby modes without BIOS modifications. The 250kbps data rate suits standard serial communications where higher speeds are unnecessary. Consider alternative models within the MAX3224E family if extended industrial temperature ranges or different package footprints are required for the specific PCB layout constraints.

Part Context

This component belongs to the MAX3224E/MAX3225E series of true RS-232 transceivers designed for 3V systems. It shares core architectural features with the MAX3225E but differs in guaranteed maximum data rates. The series utilizes proprietary low-dropout transmitter stages to maintain signal integrity across varying load conditions.

Replacement Considerations

MAX3224ECAP+