MAX3223CDB

Overview

The MAX3223CDB is a dual-channel RS-232 transceiver manufactured by Texas Instruments, designed for low-power applications. It operates within a supply voltage range of 3 V to 5.5 V and supports data rates up to 250 kbps. The device features two drivers and two receivers in a full-duplex configuration. It is housed in a 16-pin SSOP package with surface-mount installation. The component functions across an industrial temperature range from -40°C to +85°C and includes integrated ESD protection rated at ±15 kV on all pins.

Feature Summary

• Integrated electrostatic discharge protection on transmitter outputs and receiver inputs
• Automatic shutdown feature reduces power consumption during idle periods
• Single-supply operation compatible with 3-V and 5-V systems

Applications

• Portable equipment requiring low-power serial communication
• Industrial control systems utilizing RS-232 interfaces
• Modem and fax machine connections

Procurement Notes

Verify the specific suffix 'CDB' against the manufacturer's current datasheet to confirm pinout compatibility and package dimensions. Check for obsolescence status as older revisions may be discontinued. Ensure environmental compliance documentation matches project requirements before finalizing procurement decisions.

Selection Notes

Select this component when a dual-channel RS-232 interface is required with minimal external capacitance needs. Compare performance metrics such as slew rate and output voltage levels against alternative devices if signal integrity is critical. Verify that the operating temperature range meets the specific environmental conditions of the target application.

Part Context

This part belongs to the MAX3223 family of multichannel line drivers and receivers. It shares functional similarities with other members like the MAX3221 and MAX3222 but differs in channel count and package options. The series is widely used in legacy serial communication designs requiring robust ESD protection and low standby current.

Replacement Considerations

Direct replacements include the MAX3223IDBR or MAX3223EIDBR for extended temperature or enhanced specifications. Cross-reference with the MAX3232CDBR if single-supply optimization is prioritized over the standard 3-5.5 V range.