PCA9554APW,112 Integrated Circuits (ICs)

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

PCA9554APW,112 is a type of integrated circuit from NXP that belongs to the class of Interface - I/O Expanders. It is a CMOS integrated circuit (IC) that serves as a bridge between a microcontroller and other peripheral devices, allowing several extra I/Os to be connected to the microcontroller beyond its normal capacity. It is commonly used in applications like automated manufacturing systems, embedded systems, and industrial automation. The main function of the chip is to provide up to eight additional I/O ports and one common current source.

The PCA9554APW,112 is designed to function as an 8-bit I/O expander on I2C or ANSI compliant serial buses. The chip can support a wide range of I/O voltage from +1.65V to +3.6V, making it suitable for use in modern mixed-signal embedded systems. It is capable of supporting both “open-drain” and “push-pull” logic configurations, meaning that it can act as either an input device or an output device. Additionally, the chip supports four levels of shutdown logic, meaning that it can be programmed to be in one of four power states: Active, Sleep, Shutdown, and Power-Down.

The working principle behind the chip is fairly simple. Incoming I/O signals are converted from an I2C signal protocol to one of the standard logic configurations supported by the chip. The signal is then routed to one of the eight different channels, each of which can be configured as either an input or an output. The signal is then routed back to the microcontroller, which is responsible for interpreting and responding to the signal.

The PCA9554APW,112 is capable of handling a maximum current draw of 50mA, which can be extremely useful in applications that require high-power inputs. Additionally, it can provide a minimum delay of 5us on any given channel. This means that it can rapidly switch between different I/O signals, making it very useful in situations such as factory automation, where quick I/O response times are essential.

The PCA9554APW,112 is an extremely useful component for embedded systems and automation. It is designed to provide an easy and cost-effective way to expand the number of I/O ports available to a microcontroller. Its ability to support a wide range of logic configurations and its relatively low current draw make it an ideal choice for many different applications.

The specific data is subject to PDF, and the above content is for reference