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SH79F6488P/080PR bảng dữ liệu(PDF) 124 Page - SINOWEALTH Electronic Ltd

tên linh kiện SH79F6488P/080PR
Giải thích chi tiết về linh kiện  Enhanced 8051 Microcontroller with 20bit Σ-ΔADC and LCD Driver
PDF  152 Pages
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nhà sản xuất  SINOWEALTH [SINOWEALTH Electronic Ltd]
Trang chủ  https://en.sinowealth.com
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SH79F6488P/080PR bảng dữ liệu(HTML) 124 Page - SINOWEALTH Electronic Ltd

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SH79F6488/SH79F6489
124
8.10 Low Voltage Reset (LVR)
8.10.1 Features
 Enabled by the code option and VLVR is 3.1V or 4.0V
 LVR de-bounce timer TLVR is about 60µs
 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 60µs.
The LVR circuit has the following functions when the LVR function is enabled: (T1 means the time of the supply voltage below
VLVR)
Generates a system reset when VDD ≤ VLVR and T1 ≥ TLVR;
Cancels the system reset when VDD > VLVR or VDD < VLVR, but T1 < TLVR.
VDD
VLVR
TLVR
LVR Reset
T1
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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