HOLTEK AN0351EN Touch Key Products User Guide
- October 30, 2023
- HOLTEK
Table of Contents
HOLTEK AN0351EN Touch Key Products
Introduction
This text assists users to have a preliminary understanding of the Holtek touch key products, the BSxx series of devices, to enable them to quickly and accurately select the most suitable device for their application. The product types, product advantages and classifications are described in this application note.
Product Type
Touch Key IC Standard Type – ASIC Type
- No program development is required – easy to use
- The sensitivity can be adjusted by an external capacitor or a communication interface
Touch Flash MCU – MCU Type
- Required to write MCU programs – higher application flexibility and diversity
- Sensitivity can be adjusted by the program, eliminating the need for external capacitors
- According to different applications, these can be divided into three categories: standard type, enhanced type and special type classified into three broad categories
Product Advantages
- Excellent anti-interference ability: Excellent anti-interference ability to the external environment and EMC interference.
- Low power consumption: Provides excellent power-saving features with devices having standby current as low as 120nA, making them suitable for portable devices.
- Small size packages: Includes DFN and QFN small package types, making them suitable for low volume product applications
- Fewer external components: The touch devices have a high level of functional integration which require few external components to reduce production costs.
- Easy to develop: Holtek provides a software library to simplify development making them easy to use.
Model Number Classifications
Model Classifications ‒ Standard Type
Model Classifications ‒ MCU Standard Type
Model Classifications ‒ MCU Enhanced Type
Model Classifications ‒ MCU Special Type
Classification Item Description
- The main application areas for the Holtek BS range of devices include touch key, infrared, atomizer etc. For applications that do not require touch switches, users should select other MCU special function devices such as the BS45Fxxxx series.
- For easy-to-design touch products, but which do not require program editing, users should select the standard device types.
- For products which use an AC power supply and which require anti-CS interference functions, users should select the version C series.
- For multiple I/O applications, large capacity, and composite functions, users should select the MCU enhanced types – the BS66/67Fxxx series.
- For voice control functions, users should select the MCU-enhanced type – the BS66FVxxx series.
Conclusion
- Users can easily and quickly select their required touch device using this text, thereby shortening the required development time.
- It is important to remind users that touch products are continually being updated, therefore it is recommended to consult the Holtek website for the latest product information.
- After the initial device selection, it is recommended to then contact Holtek to assist in determining the best final device solution.
Reference Material
- For more information consult the Holtek website: http://www.holtek.com.
Version and Modification Information
| Date | Author | Release | Modification Information |
|---|---|---|---|
| 2021.04.19 | Qiu Yixuan, Zhang Yicang | V1.10 | New products and additional |
modifications
2014.05.26| Liu Jiayi| V1.00| First version
Disclaimer
- All information, trademarks, logos, graphics, videos, audio clips, links, and other items appearing on this website (‘Information’) are for reference only and is subject to change at any time without prior notice and at the discretion of Holtek Semiconductor Inc. and its related companies (hereinafter ‘Holtek’, ‘the company’, ‘us’, ‘we’ or ‘our’). Whilst Holtek endeavors to ensure the accuracy of the Information on this website, no express or implied warranty is given by Holtek to the accuracy of the Information. Holtek shall bear no responsibility for any incorrectness or leakage.
- Holtek shall not be liable for any damages (including but not limited to computer viruses, system problems, or data loss) whatsoever arising in using or in connection with the use of this website by any party. There may be links in this area, which allow you to visit the websites of other companies. These websites are not controlled by Holtek. Holtek will bear no responsibility and no guarantee to whatsoever Information displayed at such sites. Hyperlinks to other websites are at your own risk.
Limitation of Liability
- In no event shall Holtek Limited be liable to any other party for any loss or damage whatsoever or howsoever caused directly or indirectly in connection with your access to or use of this website, the content thereon, or any goods, materials, or services.
Governing Law
- The Disclaimer contained in the website shall be governed by and interpreted in accordance with the laws of the Republic of China. Users will submit to the non-exclusive jurisdiction of the Republic of China courts.
Update of Disclaimer
- Holtek reserves the right to update the Disclaimer at any time with or without prior notice, all changes are effective immediately upon posting to the website
Read User Manual Online (PDF format)
Read User Manual Online (PDF format) >>