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Moteur de recherche de fiches techniques de composants électroniques |
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Moteur de recherche de fiches techniques de composants électroniques |
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MB91F585ASH Fiches technique(PDF) 165 Page - Cypress Semiconductor |
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MB91F585ASH Fiches technique(HTML) 165 Page - Cypress Semiconductor |
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165 / 176 page  Document Number: 002-04665 Rev *A Page 164 of 175 MB91580M/S Series 11.7.2 Notes While the Flash memory is written or erased, shutdown of the external power (Vcc) is prohibited. In the application system where Vcc might disappear while writing or erasing, be sure to turn the power off by using an external low-voltage detection function. To put it concretely, after the external power supply voltage falls below the detection voltage (VDL *), hold Vcc at 2.7V or more within the duration calculated by the following expression: Td *[µs] + (PCLK cycle[µs] × 257) + 50[µs] *: See "4. AC characteristics (8) Low-voltage detection (External low-voltage detection)." |
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