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Maxim > Products > 1-Wire® Devices

1-Wire® Single-Contact Programmable GPIO/Port Expanders

Use Only a Single Dedicated Interface Contact for Control and Identification of High-Voltage Peripherals

  • Low-Cost, Single-Contact Alternative to 2-Wire and 3-Wire PIO Solutions

  • Identify the Power Capability of an AC-Adapter Power Supply and Control Adapter ON/OFF or LED functions

  • Ideal for Encoding Model Information or for Identifying/Controlling Cabled Accessories or Peripherals

1-Wire® Single-Contact Programmable GPIO/Port Expanders

Features
  • Software-Programmable I/O Port Characteristics
  • Complete Operation over the Two-Contact 1-Wire Bus
  • High-ESD I/O Immunity: 8kV (typ) IEC 1000-4-2
  • Designed for Hot/Live System Insertion
  • Each Part Is Uniquely Identified with 64-Bit Device ID Number
  • Wide 1-Wire Interface Operating Range: 2.8V to 5.25V, 0°C to +70°C
Applications
  • Power Adapters (Cell Phones, Notebooks, Cameras)
  • Home Monitoring and Automation
  • Automotive
  • Access Control
  • Identification and Configuration


Part Memory Type Memory Size (Bits) Additional Features Package
DS2405 ROM 64 Single-channel GPIO 6-TSOC, TO-92
DS2406 EPROM 1k Two-channel GPIO 6-TSOC, TO-92, flip chip
DS2408 ROM only 64 Eight-channel GPIO 16-SO
DS2413 ROM only 64 Two-channel, programmable GPIO, 28V/20mA operation, LED/relay control 6-TSOC


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