MAX3223IDWR

Overview

The MAX3223IDWR is a dual-channel 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 kbps. The device integrates two drivers and two receivers in a 20-pin SOIC package. Key electrical specifications include a maximum operating temperature of +85°C and a minimum of -40°C. It features low supply current of 1 mA and includes ESD protection capabilities.

Feature Summary

• Integrates dual independent drivers and receivers for full-duplex RS-232 communication
• Provides robust electrostatic discharge (ESD) protection on all pins
• Operates efficiently with low supply current consumption suitable for battery-powered systems
• Supports standard RS-232 signaling levels across a wide voltage range

Applications

• Industrial control systems requiring reliable serial communication
• Portable equipment utilizing battery power sources
• Modems and fax machines needing RS-232 interface connectivity
• Point-of-sale terminals and medical instrumentation

Procurement Notes

Verify the specific suffix IDWR corresponds to the 20-SOIC package and industrial temperature grade when sourcing. Confirm RoHS compliance status through official manufacturer documentation or authorized distributor datasheets prior to procurement. Ensure the component matches the required pinout and electrical characteristics for the target application design.

Selection Notes

Select this component when dual-channel RS-232 transmission is required within a 3V to 5.5V supply environment. It is appropriate for designs needing 250 kbps data throughput with integrated ESD protection. Consider alternative packages if space constraints differ from the 20-SOIC footprint. Verify thermal requirements against the -40°C to +85°C operating range.

Part Context

This part belongs to the MAX3223 family of multichannel line drivers and receivers. It shares functional similarities with other RS-232 transceivers but is distinct in its dual-channel configuration and specific package options. The series is widely used in legacy and modern serial communication interfaces requiring robust signal integrity.

Replacement Considerations

MAX3223EIDWR offers enhanced ESD protection specifications while maintaining similar electrical performance. MAX3223CDWR provides commercial temperature grade alternatives. Verify pin compatibility and voltage ranges before substituting with these variants.