Fujitsu FR81S User Manual
CHAPTER 31: LOW-VOLTAGE DETECTION (INTERNAL
LOW-VOLTAGE DETECTION)
3. Configuration
FUJITSU SEMICONDUCTOR LIMITED
CHAPTER :
INTERNAL LOW-VOLTAGE DETECTION (INTERNAL POWER SUPPLY
LOW-VOLTAGE
DETECTION)
FUJITSU SEMICONDUCTOR CONFIDENTIAL
5
3. Configuration
This section shows the configuration of the internal low-voltage detection (internal power
supply low-voltage detection).
Figure 3-1 Configuration diagram
Vcc
VSS
−
+
Constant voltage source
Noise canceller
Internal power supply
low-voltage detection
reset factor
low-voltage detection
reset factor
Voltage comparator
(To Reset control circuit)
MB91520 Series
MN705-00010-1v0-E
1146