The device consists of an 8-bit quasi-bidirectional port and an I2C-bus interface. The PCF8574 has a low current consumption and includes latched outputs with high current drive capability for directly driving LEDs. It also possesses an interrupt line (INT) which can be connected to the ...
GENERAL DESCRIPTION The PCF8574 is a silicon CMOS circuit. It provides general purpose remote I/O expansion for most microcontroller families via the two-line bidirectional bus (I2C-bus). The device consists of an 8-bit quasi-bidirectional port and an I2C-bus interface. The PCF8574 has a low...
Designed with an 8-bit chip, this in-line DIP16 package ensures easy integration into a wide range of applications. Whether you're working on a super chip customer service project or developing a PIC16F1947 I/O system, this chip is an excellent choice for its high-speed performance and ...
Other reason could be an ESD pulse. It also is a bit strange that even the "H" voltage level has to be so close to Vdd (minimum = 0.7 Vdd). This restricts usability of this chip a lot. I would expect that everything above 0.5 Vdd would be considered "H". [A] Unfortunately ...
The PCF8574 is a silicon CMOS circuit. It provides general purpose remote I/O expansion for most microcontroller families via the two-line bidirectional bus (I2C-bus). The device consists of an 8-bit quasi-bidirectional port and an I2C-bus interface. The PCF8574 has a low current consumption...