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STM8AF6268ITAX Fiches technique(PDF) 18 Page - STMicroelectronics |
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STM8AF6268ITAX Fiches technique(HTML) 18 Page - STMicroelectronics |
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18 / 99 page ![]() Product overview STM8AF6246/48/66/68 18/99 DocID14952 Rev 11 5.5.2 16 MHz high-speed internal RC oscillator (HSI) • Default clock after reset 2 MHz (16 MHz/8) • Fast wakeup time User trimming The register CLK_HSITRIMR with three trimming bits plus one additional bit for the sign permits frequency tuning by the application program. The adjustment range covers all possible frequency variations versus supply voltage and temperature. This trimming does not change the initial production setting. For reason of compatibility with other devices from the STM8A family, a special mode with only two trimming bits plus sign can be selected. This selection is controlled with the HSITRIM0 bit in the option byte registers OPT3 and NOPT3. |
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