MAX3232ID

Overview

The MAX3232ID is a dual RS-232 transceiver manufactured by Texas Instruments, designed for full-duplex communication. It operates within a supply voltage range of 3 V to 5.5 V and supports data rates up to 250 kb/s. The device integrates two drivers and two receivers in a 16-pin SOIC-Narrow package. Key electrical specifications include a typical operating supply current of 1 mA and an ESD protection rating of 15 kV on the serial port pins. The component functions across an industrial temperature range from -40°C to +85°C.

Feature Summary

• Integrates dual charge pumps requiring only four small external capacitors for operation from a single power supply.
• Provides ±15 kV electrostatic discharge (ESD) protection on all RS-232 lines to safeguard connected equipment.
• Meets or exceeds TIA/EIA-232-F interface standards for asynchronous communication controllers.

Applications

• Connecting microprocessors or digital signal processors to serial ports on PCs and terminals.
• Industrial control systems requiring robust RS-232 communication interfaces.
• Portable battery-powered devices utilizing low-power RS-232 connectivity.

Procurement Notes

Verify the specific suffix 'ID' confirms the SOIC-Narrow 16-pin package and the -40°C to +85°C industrial temperature grade. Confirm RoHS compliance status through the manufacturer's official documentation prior to integration. Ensure the ordering part number matches the required package style and thermal performance specifications for the target application environment.

Selection Notes

Select this component when a dual-channel RS-232 interface is required with low standby power consumption. The MAX3232ID is suitable for designs needing ±15 kV ESD protection without external clamping diodes. Compare against the MAX232 series if the application strictly requires a 5 V supply and lower data rates, noting that the MAX3232 supports wider voltage ranges and higher speeds.

Part Context

The MAX3232ID belongs to the MAX3232 family of line drivers and receivers. This series is engineered to provide true dual RS-232 transmission and reception compatible with personal computers and handheld instruments. The ID suffix specifically denotes the industrial temperature range and surface-mount packaging variant within the broader product lineup.

Replacement Considerations

The MAX3232IDR serves as the reel-pack equivalent of the tube-packed MAX3232ID. Other pin-compatible alternatives include the MAX3232CDBR for commercial temperature applications. Verify package dimensions and thermal characteristics when substituting with variants from different manufacturers.