MAX3223IDW

Overview

The MAX3223IDW is a dual full-duplex RS-232 transceiver manufactured by Texas Instruments, designed for communication applications requiring reliable data transmission. It operates within a supply voltage range of 3V to 5.5V and supports data rates up to 250kbps. The device features two drivers and two receivers housed in a 20-SOIC surface-mount package with a width of 7.50mm. It includes receiver hysteresis of 500mV to improve noise immunity. The operational temperature range extends from -40°C to +85°C, ensuring functionality in industrial environments.

Feature Summary

• Dual full-duplex RS-232 transceiver architecture
• Integrated charge pump for single-supply operation
• High noise immunity with receiver hysteresis
• Industrial temperature range capability

Applications

• Industrial control systems
• Modem communications
• Portable instrumentation

Procurement Notes

Verify the exact ordering suffix against the manufacturer's current datasheet to confirm package type and temperature grade. Ensure the component matches the required 20-SOIC footprint and lead pitch for PCB layout compatibility. Cross-reference the manufacturer part number with authorized distributors to confirm authenticity and traceability before procurement.

Selection Notes

Select this component when a dual-channel RS-232 interface is required for full-duplex communication. It is suitable for designs operating between 3V and 5.5V where moderate data rates up to 250kbps are sufficient. Consider the 20-SOIC package constraints and thermal requirements for industrial environments ranging from -40°C to +85°C during the design phase.

Part Context

This part belongs to the MAX3223 family of RS-232 transceivers from Texas Instruments. It shares functional similarities with other members like the MAX3223E but may differ in specific electrical characteristics or packaging options. The IDW suffix typically denotes an industrial temperature range and a specific tape-and-reel or tube packaging configuration depending on the manufacturer's current nomenclature standards.

Replacement Considerations

Direct substitutes include the SN65C3223IDW and TRS3223IDW from Texas Instruments. Other compatible alternatives may include the MAX3223EIDW if extended ESD protection is not critical. Verify pinout compatibility and electrical specifications before substitution.