The PCF8574 device is an 8-bit I/O expander for the two-line bidirectional bus (I2C) is designed for 2.5-V to 6-V VCC operation. It provides general-purpose remote I/O expansion for most …

TI’s PCF8574 is a 8-bit 2.5- to 5.5-V I2C/SMBus I/O expander with interrupt. Find parameters, ordering and quality information

PCF8574A Remote 8-Bit I/O Expander for I2C Bus Features Low standby-current consumption of 10μA max

The PCF8574 device provides general-purpose remote I/O expansion for most microcontroller families by way of the I2C interface [serial clock (SCL), serial data (SDA)].

In the I/O expander application shown here, the PCF8574 or PCF8574A is used with P0 and P1 as inputs and P2 to P7 as outputs. When used in this configuration, during a write, the inputs …

The PCF8574 device provides general-purpose remote I/O expansion for most microcontroller families by way of the I2C interface [serial clock (SCL), serial data (SDA)].

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Therefore, to "configure" a PCF8574 pin as an output, it should be driven HIGH and connected to the output of a slave. The slave (with pull-down architecture, standard for I2C communication) …

Feb 25, 2020 · 1.What are the electrical differences between the PCF8574 and the PCF8574A (beside the address range)? I don't believe there are any electrical differences between these …

The PCF8574 device provides general-purpose remote I/O expansion for most microcontroller families by way of the I2C interface [serial clock (SCL), serial data (SDA)].