MAX230CPP

Overview

The MAX230CPP is a multichannel RS-232 driver and receiver manufactured by Analog Devices Inc./Maxim Integrated. It operates from a single +5V supply, utilizing an internal charge pump to generate the required ±10V voltages for RS-232 signaling without external dual supplies. The device features five drivers and zero receivers, providing full-duplex communication capabilities. It is housed in a 20-pin plastic DIP (PDIP) package with a standard 0.300-inch width. The component supports data rates up to 200 kbps and functions within an operating temperature range of 0°C to +70°C.

Feature Summary

• Integrates dual charge-pump circuitry to convert a single +5V supply into the necessary positive and negative voltage rails for RS-232 operation.
• Provides five independent transmitter channels for driving RS-232 signals directly from TTL or CMOS logic levels.
• Designed specifically for EIA/TIA-232E and V.28/V.24 interface standards, eliminating the need for external bipolar power supplies.

Applications

• Interface translation between TTL/CMOS logic and RS-232 serial ports
• Multidrop RS-232 network connections
• Portable diagnostics equipment requiring compact serial interfaces

Procurement Notes

Verify the specific suffix CPP against the manufacturer's current ordering guide to confirm the exact package dimensions and lead finish. Confirm that the 0°C to +70°C commercial temperature grade aligns with the system requirements. Check for RoHS compliance status as older Maxim products may not meet current environmental directives.

Selection Notes

Select this part when a design requires multiple transmit lines but no receive channels on a single IC. Ensure the application can accommodate the external capacitors required for the charge pump circuit. Verify that the 20-pin PDIP footprint fits the available PCB space compared to smaller surface-mount alternatives in the same family.

Part Context

This component belongs to the MAX220–MAX249 family of +5V-powered, multichannel RS-232 drivers and receivers. The family offers various configurations of drivers and receivers across different pin counts and packages. The MAX230 specifically provides a high-driver count configuration suitable for complex serial bus architectures.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.