| 전자부품 데이터시트 검색엔진 |
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SH79F024XU 데이터시트(PDF) 73 Page - SINOWEALTH Electronic Ltd |
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SH79F024XU 데이터시트(HTML) 73 Page - SINOWEALTH Electronic Ltd |
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73 / 92 page ![]() SH79F SH79F SH79F SH79F082 082 082 082 73 8. 8. 8. 8.6 6 6 6 Low Low Low Low Voltage Voltage Voltage Voltage Reset Reset Reset Reset (LVR) (LVR) (LVR) (LVR) 8.6.1 8.6.1 8.6.1 8.6.1 Feature Feature Feature Feature � Enabled by the code option and VLVR is 4.3V or 3.4V � LVR de-bounce timer TLVR is about 30µs � An internal reset flag indicates low voltage reset generates The LVR function is used to monitor the supply voltage and generate an internal reset in the device when the supply voltage below the specified value VLVR. The LVR de-bounce timer TLVR is about 30µs. The LVR circuit has the following functions when the LVR function is enabled: (t means the time of the supply voltage below VLVR) Generates a system reset when V DD ≤ VLVR and t ≥ TLVR; Cancels the system reset when V DD > VLVR or VDD < VLVR, but t < TLVR. The LVR function is enabled by the code option. It is typically used in AC line or large battery supplier applications, where heavy loads may be switched on and cause the MCU supply-voltage temporarily falls below the minimum specified operating voltage. This feature can protect system from working under bad power supply environment. |
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