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Chapter 24
Low-Voltage Detector
User’s Manual U16702EE3V2UD00
24.5 RAM Retention Voltage Detection Operation
The supply voltage and detected voltage are compared. When the supply voltage drops below the
detected voltage (including on power application), the RAMF bit is set.
Figure 24-8:
Operation Timing of RAM Retention Voltage Detection Function
Supply voltage
(V
DD
)
POC detected
voltage
RAM retention
detected voltage
POC detected
voltage
Set condition
detection signal
RAM retention voltage
detection signal
RAM retention flag
(RAMF bit)
Delay
Clear
Delay
Time
Delay
Set
Set
Cleared by
instruction
Cleared by
instruction
electronic components distributor
Содержание V850E/RS1
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