PCA9501 port equivalent, 8-bit i2c and smbus i/o port.
I 8 general purpose input/output expander/collector I Replacement for PCF8574 with integrated 2-kbit EEPROM I Internal 256 × 8 EEPROM I Self timed write cycle (5 ms typic.
I Board version tracking and configuration I Board health monitoring and status reporting I Multi-card systems in telecom.
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