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P82B715 I2C-bus extender - NXP

1. General descriptionThe P82B715 is a bipolar IC intended for application in I2C-bus and derivative bussystems. While retaining all the operating modes and features of the I2C-bus it permitsextension of the practical separation distance between components on the I2C-bus bybuffering both the data (SDA) and the clock (SCL) I2C-bus capacitance limit of 400 pF restricts practical communication distances to afew meters. Using one P82B715 at each end of a long cable (connecting Lx/Ly to Lx/Ly)reduces that cable s loading on the linked I2C-buses by a factor of 10 and allows the totalsystem capacitance load (all devices, cable, connectors, and traces or wires connected tothe I2C-bus ) to be around 3000 pF while the loading on each I2C-bus on the Sx/Sy sidesremains below 400 pF.

1. General description The P82B715 is a bipolar IC intended for application in I2C-bus and derivative bus systems. While retaining all the operating modes and features of the I2C-bus it permits extension of the practical separation distance between components on the I2C-bus by buffering both the data (SDA) and the clock (SCL) lines.

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