DS2408

PRODUCTION

1-Wire 8-Channel Addressable Switch

8-Channel, Bidirectional Port Expander can be Powered and Operated from a Single Communication Line

Part Models
2
1ku List Price
Starting From $4.83
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Part Details

  • Control Eight Independent I/O Port Pins from a Single Micro Port Pin
    • Eight Channels of Programmable I/O with Open-Drain Outputs
    • On-Resistance of PIO Pulldown Transistor 100Ω (max); Off-Resistance 10MΩ (typ)
    • Individual Activity Latches Capture Asynchronous State Changes at PIO Inputs for Interrogation by the Bus Master
    • Data-Strobe Output to Synchronize PIO Logic States to External Read/Write Circuitry
  • Minimalist 1-Wire Interface Lowers Cost and Interface Complexity
    • Built-in Multidrop Controller Ensures Compatibility with Other 1-Wire® Net Products
    • Supports 1-Wire Conditional Search Command with Response Controlled by Programmable PIO Conditions
    • Unique Factory-Lasered 64-Bit Registration Number Ensures Error-Free Device Selection and Absolute Part Identity
    • Communicates to Host with a Single Digital Signal at 15.3kbps or 100kbps
  • Wide Voltage and Temperature Operating Ranges Enables Robust System Performance
    • 2.8V to 5.25V
    • -40°C to +85°C Industrial Temperature Range
DS2408
1-Wire 8-Channel Addressable Switch
DS2408: Block Diagram
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