AN264 - LED DISPLAY CONTROLLER
INTEGRATED CIRCUITS APPLICATION NOTE AN264 I2C DEVICES for LED DISPLAY CONTROL PCA9530, PCA9531, PCA9532, PCA9533, PCA9550, PCA9551, PCA9552, PCA9553, SAA1064 -Abstract Philips Semiconductors family of LED Control Devices: PCA953x LED Dimmers, PCA955x LED Blinkers and SAA1064 LED Digit Display, are detailed in this application note that discusses device operation, software programming, pull up resistor sizing/bus termination and typical applications.
Jean-Marc Irazabal - PCA Technical Marketing