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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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L99ASC03TR датащи(PDF) 14 Page - STMicroelectronics |
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L99ASC03TR датащи(HTML) 14 Page - STMicroelectronics |
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14 / 73 page  Device description L99ASC03 14/73 DocID023504 Rev 7 Figure 7. Watchdog in failure mode 2.5 Device operating modes The device can be operated in four different modes: • Active Mode • Flash Mode • VDD Standby Mode • VBAT Standby Mode 2.5.1 Active Mode The device operates with all its functions being available (VDD regulator, watchdog, gate drivers, etc). 2.5.2 Flash Mode To program the system microcontroller, the L99ASC03 can be operated in Flash Mode where the internal watchdog is disabled and the other functions (see Table 3) remain available. Flash mode is entered by applying on the BC pin a voltage higher than VBC,rising; to guarantee the proper behavior of the device, the rising VBC slope must not exceed 10 V/µs. In case VBC = VBC,rising during device power-up (VSREG connecting to VBAT), it has to be assured that the SDI pin is at GND level (VSDI < 1.3 V, no external pull-up). |
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