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Please refer to FX2LP. This silicon has one GPIF/slave FIFO interface along with UART and I2C interfaces. It is available in 128pin TQFP, 100pin TQFP, 56pin QFN and 56pin SSOP packages. In case you would want the keyboard functionalities only for a few key presses, the GPIO pins/I2C interface can be used and the GPIF/slave FIFO interface can be used for the audio functions.