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数据搜索系统，热门电子元器件搜索 |
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数据搜索系统，热门电子元器件搜索 |
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H8S/2225 数据表(PDF) 797 Page - Renesas Technology Corp |
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H8S/2225 数据表(HTML) 797 Page - Renesas Technology Corp |
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797 / 1071 page  Section 18 D/A Converter Rev. 5.00 Aug 08, 2006 page 711 of 982 REJ09B0054-0500 18.5 Usage Notes 18.5.1 Analog Power Supply Current in Power-Down Mode If this LSI enters a power-down mode such as software standby, watch, subactive, subsleep, and module stop modes while D/A conversion is enabled, the D/A cannot retain analog outputs within the given D/A absolute accuracy* although it retains digital values. The analog power supply current is approximately the same as that during D/A conversion. To reduce analog power supply current in power-down mode, clear the DAOE0, DAOE1 and DAE bits to 0 to disable D/A outputs before entering the mode. Note: * The H8S/2258 Group, H8S/2238B, and H8S/2236B satisfy the specified D/A absolute accuracy. 18.5.2 Setting for Module Stop Mode It is possible to enable/disable the D/A converter operation using the module stop control register, the D/A converter does not operate by the initial value of the register. The register can be accessed by releasing the module stop mode. For more details, see section 24, Power-Down Modes. |
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