| Allicdata Part #: | 428-2050-5-ND |
| Manufacturer Part#: |
CY8C20142-SX1I |
| Price: | $ 1.13 |
| Product Category: | Integrated Circuits (ICs) |
| Manufacturer: | Cypress Semiconductor Corp |
| Short Description: | IC CAPSENSE EXP 4 I/O 8-SOIC |
| More Detail: | Capacitive Touch Buttons 8-SOIC |
| DataSheet: |  CY8C20142-SX1I Datasheet/PDF |
| Quantity: | 615 |
| 1 +: | $ 1.03320 |
| 10 +: | $ 0.93492 |
| 25 +: | $ 0.83488 |
| 100 +: | $ 0.75128 |
| 250 +: | $ 0.66780 |
| 500 +: | $ 0.58433 |
| 1000 +: | $ 0.48416 |
| 2500 +: | $ 0.45077 |
| 5000 +: | $ 0.43407 |
Specifications
| Series: | CapSense® Express™ |
| Packaging: | Tube |
| Part Status: | Not For New Designs |
| Type: | Buttons |
| Proximity Detection: | No |
| Number of Inputs: | Up to 4 |
| LED Driver Channels: | Up to 4 |
| Interface: | I²C |
| Resolution: | -- |
| Voltage - Supply: | 2.4 V ~ 5.25 V |
| Current - Supply: | 1.5mA |
| Operating Temperature: | -40°C ~ 85°C |
| Package / Case: | 8-SOIC (0.154", 3.90mm Width) |
| Supplier Device Package: | 8-SOIC |
Description
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CY8C20142-SXI is an advanced microcontroller for capacitive sensing. It features an integrated signal processor and I/O interface and provides easy access to complex signal processing algorithms. The device can be used for many different capacitive sensing applications, including touch sensing and proximity sensing. This article will discuss the application fields and working principles of CY8C20142-SXI.Capacitive Touch with CY8C20142-SXI
Touch capacitive sensing is a key application that CY8C20142-SXI is designed for. The device features a 24-channel capacitive touch sensing engine and an automated signal chain to support complex touch sensing applications. It supports fast all-finger detection as well as up to 10 simultaneous touches. It also integrates backchannel and low-power wakeup capabilities for more efficient touch scanning, and incorporates an advanced signal conditioning algorithm to enable reliable finger tracking, stable performance, and good proximity sensing.Proximity Sensing with CY8C20142-SXI
CY8C20142-SXI is also capable of supporting proximity sensing applications. The device includes an integrated Hall-effect sensor which is capable of detecting an object up to 2 cm away. With the integrated signal processing, the device can accurately detect the distance between the object and the sensor, allowing for more precise user interactions. The device also features a flexible configurable I/O interface, allowing for easy customization of the proximity sensing application.Other Applications with CY8C20142-SXI
In addition to touch and proximity sensing, CY8C20142-SXI is also capable of supporting additional applications, including gesture recognition and secure authentication. The device integrates a specialized touch sensing protocol to recognize specific hand gestures, allowing for more unique user interactions. It also includes an advanced authentication algorithm to ensure secure authentication solutions. Additionally, the device supports advanced ambient light sensing and touch-based image recognition for better user experience.Working Principle of CY8C20142-SXI
The working principle of CY8C20142-SXI is based on the capacitance effect. The device works by measuring the amount of capacitance on a certain surface. By applying an AC voltage to the surface, a varying electric field is created between the sensor and the surface. When there is an object such as a finger on the surface, the field becomes unbalanced, resulting in a change in capacitance. This change in capacitance can be detected by the device and is used to calculate the distance between the sensor and the object.Conclusion
CY8C20142-SXI is a powerful microcontroller for capacitive sensing applications. It is capable of supporting a range of applications, such as touch sensors, proximity sensors, gesture recognition, and secure authentication. It works on the principle of capacitance and is able to accurately detect changes in capacitance to calculate the distance between the sensor and the object. By integrating advanced features such as signal processing, automated signal chaining, and configurable I/O interfaces, CY8C20142-SXI can meet the demands of a wide range of capacitive sensing applications.The specific data is subject to PDF, and the above content is for reference
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