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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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STM32W108HB 데이터시트(PDF) 86 Page - STMicroelectronics |
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STM32W108HB 데이터시트(HTML) 86 Page - STMicroelectronics |
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86 / 278 page  Integrated voltage regulator STM32W108HB STM32W108CC STM32W108CB STM32W108CZ 86/278 Doc ID 16252 Rev 14 An external 1.8 V regulator may replace both internal regulators. The STM32W108 can control external regulators during deep sleep using open-drain GPIO PA7, as described in Section 8: General-purpose input/output. The STM32W108 drives PA7 low during deep sleep to disable the external regulator and an external pull-up is required to release this signal to indicate that supply voltage should be provided. Current consumption increases approximately 2 mA when using an external regulator. When using an external regulator the internal regulators should be disabled through software. 1V8 regulator start-up time 50 µs 0 V to POR threshold 2.2 µF capacitor 1V25 regulator start-up time 50 µs 0 V to POR threshold 1.0 µF capacitor Table 12. 1.8 V integrated voltage regulator specifications (continued) Parameter Min. Typ. Max. Units Comments |
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