MAX3222ECDB

Overview

The MAX3222ECDB 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 500 kb/s. The device integrates two drivers and two receivers in a 20-pin SSOP package. Key electrical specifications include a maximum operating temperature of +70°C and a minimum of 0°C. It features low power consumption with an operating supply current of 1 mA and includes a shutdown mode for energy efficiency. ESD protection is rated at 15 kV.

Feature Summary

• Integrates dual drivers and receivers for full-duplex RS-232 communication
• Operates on single 3 V to 5.5 V power supply
• Includes shutdown mode for reduced power consumption
• Provides 15 kV ESD protection on all pins

Applications

• Industrial control systems requiring serial communication
• Portable battery-powered devices due to low power operation
• Modems and portable instruments

Procurement Notes

Verify the specific suffix 'ECDB' against the manufacturer's official datasheet to confirm the commercial temperature grade (0°C to +70°C) and SSOP-20 packaging. Ensure compatibility with system voltage levels and interface requirements before procurement. Cross-reference part numbers with authorized distributors to avoid counterfeit components.

Selection Notes

Select this component when a dual-channel RS-232 interface is required with low power constraints. Compare against the MAX3222EIDBR if industrial temperature range (-40°C to +85°C) is needed instead of commercial. Verify pinout compatibility with existing PCB layouts, as package variations may differ between SSOP and TSSOP options.

Part Context

This part belongs to the MAX3222 family of multichannel RS-232 line drivers and receivers. It is distinct from variants like the MAX3222ECPWR which uses a TSSOP package or the MAX3222CDBR which may have different manufacturing revisions. The ECDB suffix specifically denotes the commercial temperature range and SSOP-20 form factor.

Replacement Considerations

MAX3222EIDBR is a recommended replacement offering the same functionality but in an industrial temperature range and DB package.