MM1099AD データシートの表示（PDF） - Mitsumi
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MM1099AD Datasheet PDF : 7 Pages
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MITSUMI
System Reset (Built-in Watch Dog Timer) MM1099
Pin Description
Pin No. Pin name
Function
Variable terminals TWD, TWR and TPR
TPR (mS) = 5000 CT (µF)
1
TC The time for TWD, TWR and TPR to be
TWD (mS) = 500 CT (µF)
determined by the external capacitor. TWR(mS) = 100 CT (µF)
2
N.C
3
CK Clock input terminal Inputs the clock from the logic system.
4
GND Ground terminal
5
VCC Voltage detection MM1099A 3.2V MM1099B 4.2V
6
RCT Watchdog timer stop pin Operation modes: Operation OPEN, Stop connect to GND
7
VS Detect voltage variable terminal
8 RESET Reset output pin (low output)
Absolute Maximum Ratings
Item
Power supply voltage
CK pin input voltage
VS pin input voltage
Voltage applied to RCT pin
----------------------------------------------------
Voltage applied to RESET pin
Allowable loss
Storage temperature
Symbol
VCC max.
VCK
VVS
VRCT
VOH
Pd
TSTG
Rating
-0.3~+10
-0.3~VCC+0.3 ( <= +10)
-0.3~VCC+0.3 ( <= +10)
-0.3~VCC+0.3 ( <= +10)
-0.3~VCC+0.3 ( <= +10)
300
-40~+125
Units
V
V
V
V
V
mW
°C
Recommended Operating Conditions
Item
Power supply voltage
----------------------------------------------------
RESET sync current
Clock monitoring time setting
Clock rise and fall times
TC pin capacitance
Operating temperature
Symbol
VCC
IOL
TWD
tFC, tRC
CT
TOP
Rating
+2.2~+7.0
0~1.0
0.1~1000
<100
0.0002~2
-25~+75
Units
V
mA
mS
µS
µF
°C
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