參數(shù)資料
型號: S1C60N05D0A0100
元件分類: 微控制器/微處理器
英文描述: MICROCONTROLLER, UUC53
封裝: DIE-53
文件頁數(shù): 71/95頁
文件大?。?/td> 736K
代理商: S1C60N05D0A0100
76
7674F–AVR–09/09
ATmega164P/324P/644P
12.2.6
Unconnected Pins
If some pins are unused, it is recommended to ensure that these pins have a defined level. Even
though most of the digital inputs are disabled in the deep sleep modes as described above, float-
ing inputs should be avoided to reduce current consumption in all other modes where the digital
inputs are enabled (Reset, Active mode and Idle mode).
The simplest method to ensure a defined level of an unused pin, is to enable the internal pull-up.
In this case, the pull-up will be disabled during reset. If low power consumption during reset is
important, it is recommended to use an external pull-up or pull-down. Connecting unused pins
directly to V
CC or GND is not recommended, since this may cause excessive currents if the pin is
accidentally configured as an output.
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