PCF8574A Interface, I2C, 8-bit, I/O expander (DIP16) Vognmand Helmholt There are different models of

There are different models of CCT controllers available

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PCF8574A Interface, I2C, 8-bit, I/O expander (DIP16) Vognmand Helmholt There are different models ofThis 8 bit input output expander for the two line bidirectional bus (I2C) is designed for 2. 5V to 6V VCC operation. The PCF8574AN provides general purpose remote I O expansion for most microcontroller families via the I2C interface [serial clock (SCL), serial data (SDA)]. The device features an 8 bit quasi bidirectional I O port (P0 P7), including latched outputs with high current drive capability for directly driving LEDs. Each quasi bidirectional I