PCA9561 Quad 6-bit multiplexed I2C-bus EEPROM DIP switch Rev.
4 — 6 November 2012 Product data sheet 1.
General description The PCA9561 is a 20-pin CMOS device consisting of four 6-bit non-volatile EEPROM registers, six hardware pin inputs and a 6-bit multiplexed output.
It is used for DIP switch-free or jumper-less system configuration and supports Mobile and Desktop VID Configuration, where five preset values (four sets of internal non-volatile registers and one set of external hardware pins) set processor voltage for operation in various performance or battery conservation sleep modes.
The PCA9561 is also useful in server and telecommunications/networking applications when used to rep...

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