PCA9559 Datasheet (NXP) - 5-bit multiplexed/1-bit latched 6-bit I2C EEPROM

PCA9559, 5-bit multiplexed/1-bit latched 6-bit I2C EEPROM

The primary function of the 5-bit multiplexer, 1-bit latch is to enable system configuration.

PIN CONFIGURATION 2 I C SCL SDA A1 A0 1 2 3 4 5 6 7 8 9 20 VCC 19 WP 18 OVERRIDE # 17 NON_MUXED_OUT 16 MUX_OUT A 15 MUX_OUT B 14 MUX_OUT C 13 MUX_OUT D 12 MUX_OUT E 11 MUX_SELECT I2C MUX_IN A MUX_IN B

PCA9559 Features

* 5-bit 2-to-1 multiplexer, 1-bit latch

* 6-bit internal non-volatile register

* Internal non-volatile register programmable and readable via I2C bus

* Override input forces all outputs to logic 0

* 5 open drain multiplexed outputs

* 1 open drain non-multip