Holtek AN0351EN User guide

AN0351EN
Holtek
Brand
Holtek
Model
AN0351EN
Type
User guide

Holtek AN0351EN is a touch product selection guide that helps users quickly and accurately select the most suitable touch key product for their application. It provides information on product types, advantages, and classifications, including standard ASIC type, MCU type, and special type. The guide also offers insights into the key features and benefits of Holtek touch products, such as excellent anti-interference ability, low power consumption, small size packages, fewer external components, and ease of development.

Holtek AN0351EN is a touch product selection guide that helps users quickly and accurately select the most suitable touch key product for their application. It provides information on product types, advantages, and classifications, including standard ASIC type, MCU type, and special type. The guide also offers insights into the key features and benefits of Holtek touch products, such as excellent anti-interference ability, low power consumption, small size packages, fewer external components, and ease of development.

HOLTEK Touch Product Selection Guide
AN0351EN V1.10 1 / 4 November 4, 2022
HOLTEK Touch Product Selection Guide
D/N: AN0351EN
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
1. Excellent anti-interference ability: Excellent anti-interference ability to the external
environment and EMC interference.
2. Low power consumption: Provides excellent power-saving features with devices having
standby current as low as 120nA, making them suitable for portable devices.
3. Small size packages: Includes DFN and QFN small package types, making them suitable for
low volume product applications
4. Fewer external components: The touch devices have a high level of functional integration which
require few external components to reduce production costs.
5. Easy to develop: Holtek provides a software library to simplify development making them easy
to use.
HOLT EK Touch Product Selection Guide
AN0351EN V1.10 2 / 4 November 4, 2022
Model Number Classifications
Model Classifications ‒ Standard Type
Model Classifications ‒ MCU Standard Type
Model Classifications ‒ MCU Enhanced Type
HOLT EK Touch Product Selection Guide
AN0351EN V1.10 3 / 4 November 4, 2022
Model Classifications ‒ MCU Special Type
Classification Item Description
1. 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.
2. For easy-to-design touch products, but which do not require program editing, users should select
the standard device types.
3. For products which use an AC power supply and which require anti-CS interference functions,
users should select the version C series.
4. For multiple I/O applications, large capacity and composite functions, users should select the
MCU enhanced types - the BS66/67Fxxx series.
5. For voice control functions, users should select the MCU enhanced type - the BS66FVxxx series.
Conclusion
1. Users can easily and quickly select their required touch device using this text, thereby shortening
the required development time.
2. 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.
3. 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.
HOLT EK Touch Product Selection Guide
AN0351EN V1.10 4 / 4 November 4, 2022
Version and Modification Information
Date
Author
Release
Modification Information
2021.04.19
邱奕軒、張益倉
V1.10
New products and additional modifications
2014.05.26
劉佳宜
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 virus, 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
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Holtek AN0351EN User guide

AN0351EN
Holtek
Brand
Holtek
Model
AN0351EN
Type
User guide

Holtek AN0351EN is a touch product selection guide that helps users quickly and accurately select the most suitable touch key product for their application. It provides information on product types, advantages, and classifications, including standard ASIC type, MCU type, and special type. The guide also offers insights into the key features and benefits of Holtek touch products, such as excellent anti-interference ability, low power consumption, small size packages, fewer external components, and ease of development.

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