M5295AL Datasheet, PDF (1/13 Pages) Mitsubishi Electric Semiconductor – WATCHDOG TIMER

M5295AL/AP/AFP
Watchdog Timer
REJ03D0780-0200
Rev.2.00
Jun 15, 2007
Description
M5295A is a semiconductor integrated circuit which is designed for system reset to detect +5 V power supply.
This IC keeps the operation microcomputer watching. When the system is abnormal, it generates reset output until the
system returns to normal states of the system.
It is possible to vary the two detective voltage by connecting the resistor, so it is suitable to high quality and high
performance system.
Features
• Watchdog timer
• Power on reset timer
• Low circuit current: 0.8 mA (Typ, V_CC = 5 V)
• Wide supply voltage range: V_CC(max) = 15 V
Application
• Microcomputer system
Recommended Operating Condition
• Supply voltage range: 4 V to 15 V
• Rated supply voltage: 5 V
Block Diagram
–
F.F
F.F
–
W.D.T
F.F
49.6k
–
20.4k
51.2k
+
–
18.8k
1.24V
Reference voltage
generator circuit
20k
30k
1
2
WD
TC
3
RST1
4
GND
5
ADJ1
6
7
8
V_CC
RST2
ADJ2
REJ03D0780-0200 Rev.2.00 Jun 15, 2007
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