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AN256
PCA9500/PCA9501 provides simple card maintenance and
control using I
2
C-bus
Rev. 02 — 23 March 2009 Application note
Document information
Info Content
Keywords PCA9500, PCA9501, GPIO, EEPROM
Abstract PCA9500 provides drop-in replacement for PCF8574 with integrated
2-kbit EEPROM. PCA9501 provides same functionality with six address
pins allowing up to 64 packages to be located on the same bus.
