MAX232CASE+

Overview

The MAX232CASE+ is a dual driver and receiver RS-232 transceiver from the MAX220–MAX249 family, designed for EIA/TIA-232E and V.28/V.24 interfaces. It operates on a single +5V supply (4.5V to 5.5V) with typical current consumption of 10mA. The device features an internal charge pump generating ±10V rails using external capacitors. It supports full-duplex communication at data rates up to 200kbps. The component is housed in a 16-pin SOIC package and functions within an industrial temperature range of -40°C to +85°C.

Feature Summary

• Integrates dual charge-pump circuitry to generate required voltage levels from a single power source
• Provides bidirectional TTL/CMOS to RS-232 level translation without requiring bipolar supplies
• Supports full-duplex data transmission with two independent drivers and receivers

Applications

• Interface translation between microcontrollers and serial ports
• Multidrop RS-232 network connections
• Portable diagnostics equipment

Procurement Notes

Verify the specific suffix 'CASE+' against official manufacturer documentation to confirm exact packaging and material specifications. Ensure the component matches the required operating temperature range and package dimensions for the target design. Cross-reference the ordering information table in the datasheet to validate availability and production status before procurement.

Selection Notes

Select this component when designing systems that require RS-232 communication powered by a standard +5V logic supply. It is suitable for applications where space constraints prevent the use of discrete voltage inverters. Verify that the external capacitor values align with the specific electrical characteristics defined for the MAX232 variant in the datasheet.

Part Context

This part belongs to the Maxim Integrated MAX220–MAX249 family of line drivers and receivers. These devices were developed to simplify RS-232 interface design by eliminating the need for complex external power generation circuits. The family includes variants with different pin counts, speeds, and shutdown capabilities to suit various embedded system requirements.

Replacement Considerations

Compatible replacements include other members of the MAX220–MAX249 family such as the MAX232A or MAX232CSE+, provided they match the required package type and temperature rating. Verify pin compatibility and electrical parameters before substitution.