MAX3223ECDB

Overview

The MAX3223ECDB is a dual-channel RS-232 transceiver manufactured by Texas Instruments, designed for serial communication interfaces. It operates within a supply voltage range of 3 V to 5.5 V and supports data rates up to 500 kb/s. The device integrates two drivers and two receivers in full-duplex configuration. Key electrical specifications include a typical standby current of 1 mA and an output current capability of 35 mA. Propagation delay is specified at 150 ns. The component provides ±15 kV electrostatic discharge (ESD) protection on bus pins. It functions reliably across an industrial temperature range from -40°C to +85°C and is housed in a compact SSOP-28 package.

Feature Summary

• Integrated ±15-kV ESD protection on RS-232 bus pins ensures robust signal integrity against electrostatic discharge events.
• Automatic shutdown feature minimizes power consumption during idle periods, supporting battery-operated applications.
• Compatible with 5-V logic inputs while operating from a 3.3-V supply, facilitating interface flexibility.

Applications

• Portable equipment requiring low-power RS-232 connectivity
• Industrial control systems needing reliable serial communication
• Modems and fax machines utilizing standard RS-232 protocols

Procurement Notes

Verify the specific suffix 'CDB' corresponds to the SSOP-28 package and extended temperature grade when sourcing. Confirm RoHS compliance status through official manufacturer documentation or authorized distributor datasheets prior to integration. Ensure the procurement channel provides traceability for quality assurance purposes.

Selection Notes

Select this component when a dual-driver RS-232 solution with integrated ESD protection is required. The SSOP-28 package accommodates additional channels compared to smaller footprints. Verify that the 500 kb/s data rate meets system timing requirements. Consider the 3-V to 5.5-V operating range for compatibility with existing power rails.

Part Context

This part belongs to the MAX3223E family of multichannel RS-232 line drivers and receivers. The family emphasizes low power consumption and high reliability for serial communication applications. The ECDB variant specifically denotes the commercial/industrial temperature range and surface-mount packaging format within the broader product line.

Replacement Considerations

MAX3223ECDW: Pin-compatible alternative in DW package. MAX3223EIDBR: Similar functionality in SSOP-20 package with different pin count. Verify pinout compatibility before substitution.