MAX3222CDB

Overview

The MAX3222CDB 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 kb/s. The device integrates two drivers and two receivers in a 20-pin SSOP package. Key electrical specifications include an operating supply current of 1 mA and ESD protection rated at 15 kV. It functions reliably across a temperature range from 0°C to +70°C.

Feature Summary

• Integrates dual independent drivers and receivers for full-duplex RS-232 communication
• Provides robust electrostatic discharge (ESD) protection rated at 15 kV
• Operates efficiently with low power consumption suitable for battery-powered applications

Applications

• Industrial control systems requiring serial communication interfaces
• Portable equipment utilizing RS-232 connectivity
• Embedded systems interfacing with modems or barcode scanners

Procurement Notes

Verify the specific suffix against official documentation to confirm package type and temperature grade. Ensure compatibility with existing PCB footprints for the 20-SSOP configuration. Cross-reference datasheet revisions to validate pinout consistency before integration into new designs.

Selection Notes

Select this component when dual-channel RS-232 transmission is required within a compact surface-mount footprint. Consider the 3 V to 5.5 V operating range for flexibility in system power design. Evaluate the 250 kb/s data rate capability against application bandwidth requirements.

Part Context

This part belongs to the MAX3222 series of multichannel RS-232 line drivers and receivers. It shares functional similarities with other devices in the family but differs in package options and channel configurations. The series is widely used for standard serial communication needs in industrial and commercial electronics.

Replacement Considerations

The MAX3222EIDBR is listed as a manufacturer-recommended alternative. Verify that the substitute maintains identical pinout and electrical characteristics for direct replacement.