PCA9564

    The PCA9564 is an integrated circuit designed in CMOS technology that serves as an interface between most standard parallel-busmicrocontrollers/microprocessors and the serial I²C-bus and allowsthe parallel bus system to communicate bi-directionally with the I²C-bus. The PCA9564 can operate as a master or a slave and can be a transmitter or receiver. Communication with the I²C-bus is carried out on a byte-wise basis using interrupt or polled handshake.

    The PCA9564 controls all the I²C-bus specific sequences, protocol, arbitration and timing with no external timing element required.The PCA9564 is similar to the PCF8584 but operates at lower voltages and higher IC frequencies. Other enhancements requested by design engineers have also been incorporated.