Series:	--
Packaging:	Tube
Part Status:	Obsolete
Number of I/O:	8
Interface:	I²C
Interrupt Output:	Yes
Features:	POR
Output Type:	Push-Pull
Current - Output Source/Sink:	100µA, 25mA
Clock Frequency:	400kHz
Voltage - Supply:	2.3 V ~ 5.5 V
Operating Temperature:	-40°C ~ 85°C
Mounting Type:	Surface Mount
Package / Case:	20-LSSOP (0.173", 4.40mm Width)
Supplier Device Package:	20-SSOP
Base Part Number:	PCA8574

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Interface - I/O Expanders: PCA8574ATS,112 Application Field and Working Principle

I/O Expanders are an important part of any system, as it provides extra input and output points for the system. The PCA8574ATS,112 is an I/O Expander, which is widely used in many industries and provides a versatile, cost effective solution for expanding the I/O capabilities of a system.The PCA8574ATS,112 is a highly integrated 8-bit I/O Expander that is available in a lead-free, zero-halogen SOIC-14 package. It has a low power consumption of only 0.125mA, making it the ideal choice for a wide variety of applications. Its small size and high integration makes it very suitable for space-saving designs. The Expander also features an active-low reset pin and an integrated oscillator, which provide flexibility and convenience, allowing designers to easily integrate the Expander into their design. The PCA8574ATS,112 is a versatile 8-bit I/O Expander that can be used in a wide range of applications. For example, it can be used in automotive and industrial applications, to control the lights, fans, motors, relays, and valves, as well as the infrared, radio and other sensors. In consumer electronics, it can be used to control audio and video systems, as well as gaming and entertainment products. The Expander can also be used in medical applications, for controlling medical monitors and diagnostic equipment, as well as controlling building automation systems. The PCA8574ATS,112 takes an input from the application and manages the outputs accordingly. This is done through a series of commands, sent from the application over its 8-bit data bus. These commands allow data to be transferred between the Expander and the application, in order to control its outputs. The Expander’s outputs are high current capable and can sink up to 10mA and source up to 5mA, making it suitable for driving LEDs and relays. The PCA8574ATS,112 is a relatively easy to use I/O Expander, which makes it suitable for a wide range of designs. It can be connected to the application using any of the 8 pins and operated using a standard 3.3V logic supply. It has a wide range of operating temperature range, making it suitable for use in demanding environments. In conclusion, the PCA8574ATS,112 is a highly integrated 8-bit I/O Expander that is widely used for a variety of industries and applications. Its low power consumption and integrated oscillator make it an ideal choice for many designs. Its versatile 8-bit data bus allows it to be used in a wide range of applications, while its output capabilities allow it to easily drive LEDs and relays. With its ease of use and wide range of operating temperature, the PCA8574ATS,112 is a highly versatile I/O Expander.

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