MAX235CPG

Overview

The MAX235CPG+ is a fully integrated, single-supply RS-232 transceiver manufactured by Analog Devices Inc./Maxim Integrated. It operates from a +5V supply and includes internal charge-pump circuitry to generate the required ±10V levels without external components. The device features five drivers and five receivers, supporting full-duplex communication at data rates up to 120Kbps. Designed for EIA/TIA-232E and V.28/V.24 interfaces, it offers a shutdown mode with ultra-low power consumption of 5μW. The component is housed in a 24-pin Plastic DIP package and is rated for an industrial operating temperature range of -40°C to +85°C.

Feature Summary

• Eliminates the need for bipolar ±12V supplies through integrated charge-pump voltage conversion
• Reduces printed circuit board space requirements by integrating all necessary capacitors on-chip
• Provides significant power savings via a dedicated low-power shutdown mode

Applications

• Interface translation between TTL/CMOS logic and RS-232 serial ports
• Multidrop RS-232 network communications
• Portable diagnostic equipment requiring compact form factors

Procurement Notes

Verify the specific suffix 'CPG+' against the manufacturer's current product status documentation. Confirm that the package type matches the required 24-pin Plastic DIP footprint and that the temperature grade aligns with the intended operational environment. Ensure compliance with RoHS3 standards as indicated in official specifications.

Selection Notes

Select this component when designing systems constrained by PCB area due to its integrated capacitor architecture. It is suitable for applications requiring multiple independent channels within a single IC. Verify that the system power budget accommodates the active supply current while ensuring the shutdown mode meets strict low-power requirements.

Part Context

This part belongs to the MAX220–MAX249 family of +5V-powered multichannel RS-232 drivers and receivers. The family provides various channel configurations and control options. The MAX235 specifically offers five drivers and five receivers, distinguishing it from lower-channel variants like the MAX232 or higher-channel models such as the MAX249.

Replacement Considerations

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