PI3CH281QE

Series:	--
Packaging:	Tube
Part Status:	Active
Type:	Multiplexer/Demultiplexer
Circuit:	1 x 4:1
Independent Circuits:	2
Current - Output High, Low:	--
Voltage Supply Source:	Single Supply
Voltage - Supply:	2.25 V ~ 3.6 V
Operating Temperature:	-40°C ~ 85°C
Mounting Type:	Surface Mount
Package / Case:	16-SSOP (0.154", 3.90mm Width)
Supplier Device Package:	16-QSOP
Base Part Number:	3CH281

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Logic - Signal Switches, Multiplexers, Decoders

The PI3CH281QE is a single-chip, low-power programmable control device that can be used for a wide variety of signal switching, multiplexing and decoding functions. It is designed to provide a wide range of signal-control options, such as multiplexed digital input/output signals, low power timing signals and low power analog signals.The PI3CH281QE is designed for industrial, automotive, medical and communication applications and has gained popularity due to its low power consumption and integrated features such as energy saving and task scheduling.The PI3CH281QE application field includes signal control, signal switch, multiplexers, decoders and other related applications. The device is a low-voltage single-chip controller that provides a range of signal processing capabilities such as general-purpose Digital I/O, serial I/O, module detecting, PWM control and low-power analog control. This device also supports various user needs, such as programmable pulse width, hysteresis and programmable frequency.The PI3CH281QE provides a high level of performance for reliable operation and a wide range of features for a variety of applications such as automotive, medical, and industrial. This device includes an internal high-accuracy Clock generator that allows it to function as a timing clock generator, and intelligent data bus controller (I2C).To understand how the PI3CH281QE works, it is important to understand its internal architecture and its operation modes. Essentially, the device consists of five blocks namely:

• Analog-Digital Converter (ADC; used to process analog signals).
• Digital-Analog Converter (DAC; used to process digital signals).
• Cyclic timer (CT; used for general purpose timing operations).
• Input/Output Control (IOC, used to configure and control the device).
• Bus interface module (BIM, used to facilitate communication between different components).

The ADC, DAC and CT are used to process analog and digital signals and control tasks. The IOC block has various analog and digital I/O ports, can access the inputs and outputs of any device, and also control and configure the device. The BIM is a bus connector which is used to interface other devices, such as I2C, SPI and UART.The PI3CH281QE uses the I2C protocol to communicate with its internal components, and the BIM allows additional devices to interact with it. The PI3CH281QE has a few switching patterns that dictate its behavior in different operations. The device can operate in either hardware or software mode, with the latter providing a more flexible control.In hardware mode, the user can configure the device to have input/output ports configured to match the requirements of the application. When in software mode, the user can configure the device using the I2C protocol. With this flexibility, the user can build a custom “logic tree” with the PI3CH281QE, allowing for complex signal processing capabilities.The PI3CH281QE also supports a wide range of signal processing features, including Analog-to-Digital conversion, Digital-to-Analog conversion, Pulse-Width Modulation (PWM) control, and intelligent input/output port control. With this range of features, the PI3CH281QE is suitable for a variety of applications, from low-power time keeping and logic control, to sensing applications and data bus multiplexers.In addition to its signal-processing capabilities, the PI3CH281QE also includes the necessary circuitry to provide a high-precision clock generator and Temperature sensor. The device also includes a 12-bit resolution timer to measure time with an accuracy of ±5ppm.The PI3CH281QE is a highly-flexible device that is suitable for a wide range of applications, including low-power, time keeping and logic control, signal switching, multiplexing and decoding functions. Its low power consumption and wide range of features make it a preferred choice for difficult industrial, automotive, medical and communication applications.

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