MAX3232IDB

Overview

The MAX3232IDB is a dual driver/receiver RS-232 transceiver manufactured by Texas Instruments in a 16-pin SSOP package. It operates on a single 3V to 5.5V supply and includes internal charge pumps requiring only four external capacitors. The device supports data rates up to 250kbps with full-duplex communication. It features ±15kV ESD protection on all RS-232 lines, meeting TIA/EIA-232-F standards. The industrial temperature range spans from -40°C to +85°C, with a typical supply current of 300µA.

Feature Summary

• Integrated dual charge pump circuit enables operation from a single low-voltage power supply without negative voltage generation.
• Provides comprehensive electrostatic discharge protection rated at ±15kV across all serial port connection terminals including ground.
• Delivers full-duplex signal transmission and reception compatible with standard RS-232 protocols for asynchronous controllers.

Applications

• Industrial control systems requiring robust serial communication interfaces
• Portable battery-powered equipment utilizing low-power microcontrollers
• Computer peripheral connections and modem interface circuits

Procurement Notes

Verify the specific suffix IDB confirms the SSOP-16 package and industrial temperature grade (-40°C to +85°C). Confirm RoHS compliance status as designated by the manufacturer's current production records. Ensure the source document matches the exact part number to avoid confusion with similar variants like MAX3232IDWR or MAX3232EIDR which may differ in packaging or performance specifications.

Selection Notes

Select this component when designing circuits that require isolated RS-232 signaling from a 3.3V or 5V logic domain. The SSOP-16 package is suitable for space-constrained surface-mount applications. Verify that the system environment remains within the specified -40°C to +85°C operating range. Ensure adequate decoupling capacitors are placed near the VCC pin to maintain stable charge pump operation during high-speed data transitions.

Part Context

This device belongs to the MAX3232 family of multichannel RS-232 line drivers and receivers. It serves as a direct interface between TTL/CMOS devices and RS-232 connectors. The IDB suffix specifically denotes the plastic small-outline package variant designed for automated surface-mount assembly processes in commercial and industrial electronics manufacturing.

Replacement Considerations

TRRS3232EIDR is a parameter-equivalent replacement offered by Texas Instruments. ICL3232ECBNZ from Renesas Electronics Corporation is listed as a similar alternative. Direct replacements include other MAX3232 variants such as MAX3232IDBR or MAX3232IDW depending on required packaging format.