PCAL6416AERX

Series:	Agile
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
Number of I/O:	16
Interface:	I²C, SMBus
Interrupt Output:	Yes
Features:	POR
Output Type:	Open Drain, Push-Pull
Current - Output Source/Sink:	10mA, 25mA
Clock Frequency:	400kHz
Voltage - Supply:	1.65 V ~ 5.5 V
Operating Temperature:	-40°C ~ 85°C
Mounting Type:	Surface Mount
Package / Case:	24-UFBGA
Supplier Device Package:	24-UFBGA (2x2)
Base Part Number:	PCAL6416

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Introduction

The PCAL6416AERX is an I/O Expander designed to increase the flexibility of many different kinds of electrical and electronic systems. It is capable of expanding the number of I/O ports for both digital and analog signals, as well as providing support for certain types of serial interfaces such as I2C, SPI, or UART. The PCAL6416AERX also features increased current capacity and an onboard voltage regulator to reduce power supply variations. This makes the device an ideal choice for applications that need to use a variety of different inputs, outputs, and protocols in one compact package. This article will discuss the application fields and working principle of the PCAL6416AERX.

Applications

The PCAL6416AERX is commonly used in a wide variety of products, including LCDs, touchscreens, audio amplifiers, security systems, and industrial automation systems. The device\'s 16 channels can support up to 24mA of current and supply voltages ranging from 2.7V to 6.4V. This wide range of capabilities allows for a great deal of flexibility in many applications. In addition, the PCAL6416AERX can be used to expand the number of available I/O ports insecurity systems. The device can be used to read status information from motion detectors, door sensors, and other devices to control an alarm or monitoring system efficiently. The device is also commonly used in industrial applications such as robotics, process control, and building automation. The PCAL6416AERX can be used to read a wide variety of data points such as motor speed, pressure, temperature, and other critical metrics in order to control systems efficiently and accurately. In consumer products, the PCAL6416AERX can be used to reduce system complexity and size. For example, the device can be used to integrate multiple inputs and outputs onto a single board, reducing the number of components needed to build a complete system. This can reduce assembly costs and speed up the design and production process.

Working Principle

The PCAL6416AERX employs a CMOS (Complementary Metal Oxide Semiconductor) device architecture. It uses two non-inverting buffers to drive its I/O ports, which can be configured as either inputs or outputs. The device also features an onboard voltage regulator, allowing it to supply voltage up to 6.4V on the I/O ports while only needing 3.0V − 3.6V supply voltage.The PCAL6416AERX also features an ultra-low power mode, allowing it to power down to 0.25μA at full voltage. This significantly reduces system power consumption when the device is in standby mode.The PCAL6416AERX also supports various serial communication protocols such as I2C, SPI, and UART for communication with other devices. This allows the device to be connected to a wide variety of bus-based master devices and allows for full control of the device from an external microcontroller or other type of controller.

Conclusion

The PCAL6416AERX is a highly capable I/O Expander capable of expanding the number of I/O ports for both digital and analog signals. The device offers a range of features, including increased current capacity and support for multiple serial communication protocols. It is commonly used in a variety of applications, including LCDs, touchscreens, and industrial automation systems. Understanding the applications and working principle of the PCAL6416AERX can help to determine if the device is suitable for a particular project.

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