SH79F024XU datasheet(73/92 Pages) SINOWEALTH

tên linh kiện	SH79F024XU

Giải thích chi tiết về linh kiện	Enhanced 8051 Microcontroller with 10bit ADC and PWM

PDF	92 Pages

Scroll/Zoom	100%

nhà sản xuất	SINOWEALTH [SINOWEALTH Electronic Ltd]

Trang chủ	https://en.sinowealth.com

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73 / 92 page

SH79F

SH79F082

082

8.6

6 Low

Low

Low Voltage

Voltage

Voltage Reset

Reset

Reset (LVR)

(LVR)

8.6.1

8.6.1 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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