Simple Two-Wire Bus Buffer

Product Details

Select a section:


  • Simple impedance isolating buffer for 2-wire buses
  • 30 mA maximum static open-drain pull-down capability supports a wide range of bus standards
  • Works with I²C-bus (Standard-mode, Fast-mode, Fast-mode Plus), SMBus (standard and high power mode), and PMBus
  • Fast switching times allow operation in excess of 1 MHz
  • Enable allows bus segments to be disconnected
  • Hysteresis on inputs provides noise immunity
  • Operating voltages from 2.7 V to 5.5 V
  • Very low supply current
  • Uncomplicated characteristics suitable for quick implementation in most common 2-wire bus applications
  • Electronic signs and displays
  • Lighting control (including architectural and stage lighting)
  • Game consoles/boxes
  • Gaming machine networks
  • Building automation
  • TV/projector/monitor interconnection (DDC)
  • Power management systems
  • Desktop and portable computers
  • Security systems
  • Interfacing standard 3 mA I²C-bus parts to a 30 mA Fm+ bus

Design Resources

Select a section:

Engineering Services

2 engineering services

To find a complete list of our partners that support this product, please see our Partner Marketplace.


What do you need help with?