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KK1232 Datasheet

  • KK1232

  • POWER SUPPLY CONTROL WITH BUILT-IN WATCHDOG TIMER

  • 321.32KB

  • 7頁

  • KODENSHI

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TECHNICAL DATA
POWER SUPPLY CONTROL
WITH BUILT-IN WATCHDOG TIMER
KK1232
is designed to monitor power supply within the system of
reset signal generation for
microprocessors. It is used in monitor systems for controlling
various processes and entities.
Packaged in 8-pin SOP or DIP.
KK1232
Features:
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
Rated supply voltage 5.0 V
Accurate 5% or 10% microprocessor power supply monitoring
Programming of watchdog timer overflow time
Generation of reset signals at power on for correct microproces
sor start.
ORDERING INFORMATION
KK1232N
Plastic
KK1232D
SOIC
T
A
= -40擄 to 85擄 C for all packages.
The chip contains reference voltage source, analog comparator,
Watchdog timer, circuit for monitoring power supply deviation accuracy.
.
PBRST 01
08 Vcc
07
06
05
ST
RST
RST
Functions:
鈥?/div>
鈥?/div>
鈥?/div>
Reset signal generation after power failure/ error
Reset signal generation from external 鈥淩ESET鈥?pushbutton
Reset signal generation from watchdog timer
TD
TOL
02
03
GND 04
Fig 1 鈥?PIN ASSIGNMENT
Table 1 鈥?Absolute maximum ratings
Symbol
V
小小
V
IH
V
IL
孝
A
T
stg
Parameter
Supply voltage
Input voltage, high level
Input voltage, low level
Operating temperature range
Storage temperature
Typical
Min
-
-
-1.0
-40
-60
Max
7.0
7.0
-
+85
+125
Units
V
V
V
擄小
擄小
1

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