Two-Wire Bus Multiplexers from Linear Technology Help Reduce Component Count

Linear Technology has introduced the LTC4312 and LTC4314 two-wire bus multiplexers, which are suitable for radial architectures in telecommunications systems such as ATCA, address expansion and level translators. These pin-selectable multiplexers help reduce component count and provide individual enable pins to connect an upstream I2C bus to any combination of downstream busses or cards.

The LTC4312 multiplexes two channels, while the LTC4314 multiplexes four. According to Linear Technology, bidirectional capacitive buffering allows extension of the I2C bus size far beyond the 400pF I2C bus specification and prevents I2C signal corruption during live-board insertion or removal.

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