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ATTINY25-20SSH 用户编程技术手册 - ATMEL（爱特美尔）
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微控制器
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SOIC-8
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8 位 tinyAVR® 微控制器，AtmelAtmel 的 tinyAVR® 设备经优化处理，适用于需要性能、电源效率、易于使用且采用小型封装的应用。体积小巧，适用于注重尺寸的应用 电容式触摸 快速，且代码高效 高集成 1.8V 至 5.5V 工作 (ATtiny43U) ### AVR 微控制器，Atmel
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引脚图在P2P54Hot
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原理图在P4P7P52P64P67P68P70P83P84P95P96P107
封装尺寸在P206P207P208P209P210P217
型号编码规则在P203P204P205P219P220
封装信息在P206
功能描述在P108
应用领域在P31
电气规格在P52P138P218P219
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ATTINY25-20SSH数据手册
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6
ATtiny25/45/85 [DATASHEET]
2586O–AVR–02/13
3. About
3.1 Resources
A comprehensive set of development tools, application notes and datasheets are available for download on
http://www.atmel.com/avr.
3.2 Code Examples
This documentation contains simple code examples that briefly show how to use various parts of the device. These
code examples assume that the part specific header file is included before compilation. Be aware that not all C
compiler vendors include bit definitions in the header files and interrupt handling in C is compiler dependent.
Please confirm with the C compiler documentation for more details.
For I/O Registers located in the extended I/O map, “IN”, “OUT”, “SBIS”, “SBIC”, “CBI”, and “SBI” instructions must
be replaced with instructions that allow access to extended I/O. Typically, this means “LDS” and “STS” combined
with “SBRS”, “SBRC”, “SBR”, and “CBR”. Note that not all AVR devices include an extended I/O map.
3.3 Capacitive Touch Sensing
Atmel QTouch Library provides a simple to use solution for touch sensitive interfaces on Atmel AVR microcon-
trollers. The QTouch Library includes support for QTouch
®
and QMatrix
®
acquisition methods.
Touch sensing is easily added to any application by linking the QTouch Library and using the Application Program-
ming Interface (API) of the library to define the touch channels and sensors. The application then calls the API to
retrieve channel information and determine the state of the touch sensor.
The QTouch Library is free and can be downloaded from the Atmel website. For more information and details of
implementation, refer to the QTouch Library User Guide – also available from the Atmel website.
3.4 Data Retention
Reliability Qualification results show that the projected data retention failure rate is much less than 1 PPM over 20
years at 85°C or 100 years at 25°C.
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