MAX3232CDBR

Overview

The MAX3232CDBR is a dual RS-232 transceiver manufactured by Texas Instruments, designed for full-duplex communication. It operates on a single power supply ranging from 3 V to 5.5 V, supporting both 3.3 V and 5 V logic levels. The device integrates two drivers and two receivers with a maximum data rate of 250 kb/s. It features ±15 kV ESD protection on all serial port connection terminals, including ground. Typical operating supply current is 1 mA. The component is housed in an SSOP-16 package and functions within a temperature range of 0°C to +70°C.

Feature Summary

• Integrated dual charge pump circuit enables operation from a single low-voltage power supply without requiring external negative voltage generation.
• Provides robust electrostatic discharge protection rated at ±15 kV across all serial port interface terminals.
• Complies with TIA/EIA-232-F standards for electrical interfacing between asynchronous controllers and serial connectors.

Applications

• Serial port connections in personal computers and peripheral devices
• Handheld mobile equipment and portable instruments
• Modems and fax machines requiring RS-232 compatibility

Procurement Notes

Verify the specific suffix 'CDBR' corresponds to the commercial temperature grade (0°C to +70°C) and SSOP-16 tape-and-reel packaging configuration. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure ordering specifications match the required environmental rating and reel quantity to avoid functional mismatches in production environments.

Selection Notes

Select this component when designing systems requiring dual-channel RS-232 communication powered by a single 3V or 5V rail. It is suitable for space-constrained applications due to the compact SSOP-16 footprint. Consider alternative variants if the design requires extended industrial temperature ranges or different package formats such as SOIC or TSSOP.

Part Context

This part belongs to the MAX3232 family of multichannel RS-232 line drivers and receivers. The family offers various pin configurations and package options to accommodate different board layout requirements while maintaining consistent electrical performance characteristics for standard serial communication interfaces.

Replacement Considerations

The SN75C3232DBR is a documented parameter-equivalent alternative from Texas Instruments. Verify pinout compatibility and exact electrical tolerances before substitution.