MAX208CDB

Drivers, Receivers, Transceivers Overview

The MAX208CDB is a multichannel RS-232 line driver and receiver manufactured by Texas Instruments. It operates from a single 5-V supply and includes dual charge pumps to generate positive and negative voltages for EIA/TIA-232-F communication standards. The device integrates four drivers and four receivers, providing full-duplex data transmission with a guaranteed data rate of 120 kbps. It features ±15-kV electrostatic discharge (ESD) protection on all RS-232 lines. The component is housed in a 24-pin SSOP package and is rated for operation within the commercial temperature range of 0°C to 70°C.

Drivers, Receivers, Transceivers Feature Summary

• Integrated dual charge pump circuit eliminates the need for external positive and negative voltage supplies.
• Provides robust ±15-kV ESD protection on all RS-232 transceiver lines to enhance system reliability.
• Supports full-duplex communication with four independent drivers and four independent receivers.
• Operates efficiently from a single 5-V power source while meeting EIA/TIA-232-F interface specifications.

Drivers, Receivers, Transceivers Applications

• Industrial control systems requiring reliable serial communication interfaces.
• Point-of-sale (POS) terminals and barcode scanners utilizing RS-232 protocols.
• Medical equipment needing protected serial data links for peripheral connectivity.
• Automotive diagnostic tools and embedded controllers operating in commercial environments.

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix 'CDB' confirms the commercial temperature grade and SSOP-24 packaging configuration. Confirm RoHS compliance status as manufacturing processes may evolve. Check for obsolescence notices or last-time buy notifications from Texas Instruments distributors. Ensure the ordering part number matches the required tape-and-reel or tube quantity if applicable for production integration.

Drivers, Receivers, Transceivers Selection Notes

Select this component when a single-supply 5-V RS-232 solution with high ESD immunity is required. The MAX208CDB is suitable for designs needing four transmit and four receive channels without external bias generation. Consider the 120 kbps data rate limit for application compatibility. Verify that the 24-SSOP footprint fits the PCB layout constraints compared to SOIC alternatives.

Drivers, Receivers, Transceivers Part Context

The MAX208 belongs to the Maxim Integrated (now part of Analog Devices) and Texas Instruments RS-232 transceiver family. It serves as a legacy interface solution for standard serial communication before the widespread adoption of higher-speed USB or Ethernet connections. The CDB variant specifically denotes the commercial grade version in the SSOP package, distinguishing it from industrial temperature ranges or different physical footprints like the CDW SOIC option.

Drivers, Receivers, Transceivers Replacement Considerations

The TRS208IDBR is a recommended replacement from Texas Instruments offering similar functionality. Verify pin-to-pin compatibility and electrical parameter alignment before substitution. Other equivalents may include parts from Analog Devices or Renesas, but require careful review of charge pump performance and ESD ratings.