PCA9561 Datasheet - NXP Semiconductors

PCA9561 Quad 6-bit multiplexed I2C EEPROM DIP switch

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 set.

PCA9561 Features

* Selection of non-volatile register_n as source to MUX_OUT pins via I2C-bus

* I2C-bus can override MUX_SELECT pin in selecting output source

* 6-bit 5-to-1 multiplexer DIP switch

* Four internal non-volatile registers

* Internal non-volatile registers programmable and readable v

PCA9561_NXPSemiconductors.pdf