NXP PCA9601D,118

PCA9601D,118 is a dual bidirectional bus buffer. This is designed to isolate I²C-bus capacitance, allowing long buses to be driven in point-to-point or multipoint applications of up to 4000pF. It creates a non-latching, bidirectional, logic interface between a normal I²C-bus and a range of other higher capacitance or different voltage bus configurations. It can operate at speeds up to at least 1 MHz, and the high drive side is compatible with the fast-mode plus specifications. Applications include interface between I²C-buses operating at different logic levels, interface between I²C-bus and SMBus (350μA) standard or Fm+ standard, simple conversion of I²C-bus SDA or SCL signals to multi-drop differential bus hardware, for example, via compatible PCA82C250, interfaces with opto-couplers to provide opto-isolation between I²C-bus nodes up to 1MHz, long distance point-to-point or multipoint architectures.