MAX208CDBG4

Drivers, Receivers, Transceivers Overview

The MAX208CDBG4 is a multichannel RS-232 line driver and receiver manufactured by Texas Instruments. It operates on a single 5-V supply and includes four drivers and four receivers, supporting full-duplex communication. The device features ±15-kV electrostatic discharge (ESD) protection on all RS-232 lines, ensuring robustness in harsh environments. It utilizes small external capacitors for charge pump functionality, reducing overall component count. The CDB suffix indicates an industrial temperature range of 0°C to 70°C, while the G4 suffix denotes lead-free packaging compliant with RoHS standards. It is housed in a 24-pin SSOP package.

Drivers, Receivers, Transceivers Feature Summary

• Integrated ±15-kV ESD protection on all RS-232 transceiver lines
• Single 5-V power supply operation with internal charge pumps
• Four independent drivers and four independent receivers
• Lead-free construction compatible with RoHS directives

Drivers, Receivers, Transceivers Applications

• Industrial control systems requiring reliable serial communication
• Data acquisition equipment interfaces
• Point-of-sale terminals and barcode scanners
• Medical instrumentation serial ports

Drivers, Receivers, Transceivers Procurement Notes

Verify the G4 suffix confirms lead-free status and RoHS compliance when sourcing. Confirm the CDB package variant matches the required thermal and physical constraints. Check current availability as older RS-232 components may have limited stock or end-of-life statuses depending on the specific distributor channel.

Drivers, Receivers, Transceivers Selection Notes

Select this component when high ESD immunity is critical for RS-232 connections without additional protection circuitry. Ensure the design supports a single 5-V rail, as the device does not accept lower voltage supplies. Verify that the 24-SSOP footprint fits the PCB layout constraints compared to SOIC alternatives.

Drivers, Receivers, Transceivers Part Context

This part belongs to the MAX208 family of multichannel RS-232 transceivers. It shares functional similarities with the MAX208CDW but differs in package type (SSOP vs. SOIC). The G4 designation specifically identifies it as the lead-free version of the standard MAX208CDB, maintaining identical electrical performance while meeting environmental regulations.

Drivers, Receivers, Transceivers Replacement Considerations

The TRS208IDBR is a recommended manufacturer replacement offering similar functionality. Other potential substitutes include the MAX208ECAG+ from Analog Devices/Maxim Integrated, though pinout and capacitor requirements should be verified against official datasheets.