MAX3222CDBRE4

Overview

The MAX3222CDBRE4 is a low-power RS-232 transceiver manufactured by Texas Instruments, designed for full-duplex communication. It integrates two drivers and two receivers within a 20-pin SSOP package. The device operates from a single 3 V to 5.5 V supply and achieves data rates up to 250 kb/s. Key electrical specifications include a quiescent current of 1 mA and ESD protection ratings of 15 kV according to the Human Body Model. It supports both 3.3 V and 5 V logic levels and includes a shutdown feature for power conservation.

Feature Summary

• Integrates dual drivers and receivers for complete RS-232 communication functionality in a compact surface-mount package.
• Features low standby current consumption with an integrated shutdown mode to extend battery life in portable applications.
• Provides robust electrostatic discharge protection on all pins to ensure reliability in harsh environments.

Applications

• Portable equipment requiring serial communication interfaces
• Handheld terminals and mobile computing devices
• Modems and fax machines

Procurement Notes

Verify the specific suffix 'E4' against the manufacturer's latest documentation to confirm lead-free status and RoHS compliance details. Ensure the SSOP-20 footprint matches the target PCB design. Confirm availability status as distributors may list this part under alternative packaging options or obsolete statuses depending on regional inventory.

Selection Notes

Select this component when a dual-channel RS-232 interface is required with minimal power consumption. Compare pin compatibility with standard MAX3222 variants if space constraints are critical. Verify that the 250 kb/s speed meets system requirements and that the 3 V to 5.5 V operating range aligns with the target voltage domain.

Part Context

This part belongs to the MAX3222 family of low-power RS-232 transceivers. It shares functional similarities with other members like the MAX3222CDBR but differs in packaging and termination specifications. The series is widely used in industrial and commercial applications where reliable serial data transmission is necessary.

Replacement Considerations

Publicly confirmed substitute part numbers include MAX3222CDBRG4 and MAX3222EIDBR. Verify pinout compatibility and electrical characteristics before substitution.