R3130N×××A/C, R3131N×××A/C
APPLICATIONS
• CPU & Logic Circuit Reset
• Battery Checker
• Window Comparator
• Wave Shaping Circuit
• Battery Back-Up Circuit
• Power Failure Detector
BLOCK DIAGRAMS
• R3130N×××A
• R3130N×××C
Nch Open Drain Output
CMOS Output
V
DD
V
DD
-
-
Delay
Circuit
Delay
Circuit
OUT
OUT
+
+
Vref
Vref
GND
GND
• R3131N×××A
• R3131N×××C
Nch Open Drain Output
CMOS Output
V
DD
VDD
-
-
Delay
Circuit
Delay
Circuit
OUT
OUT
+
+
Vref
Vref
GND
GND
2