MM1145 データシートの表示（PDF） - Mitsumi
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MM1145 Datasheet PDF : 7 Pages
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MITSUMI
System Reset (with built-in watchdog timer) MM1145
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
Recommended Operating Conditions
Item
Power supply voltage
RESET sync current
Clock monitoring time setting
Power supply voltage rise and fall times
Clock rise and fall times
CT pin capacitance
RCT pin resistance
Operating temperature
Symbol
VCC
IOL
TWD
tFV, tRV
tFC, tRC
CT
RrCT
TOP
Rating
-0.3~+7.5
-0.3~VCC+0.3 ( <= +7.5)
-0.3~VCC+0.3 ( <= +7.5)
-0.3~VCC+0.3 ( <= +7.5)
-0.3~VCC+0.3 ( <= +7.5)
300
-40~+125
Rating
+2.2~+7.0
0~4.0
1.95~10000
<300
<100
0.002~2
0.39~2
-25~+75
Units
V
V
V
V
V
mW
°C
Units
V
mA
ms
µs
µs
µF
MΩ
°C
Electrical Characteristics (DC) (Except where noted otherwise, Ta=25°C, Vcc=5.0V)
Item
Symbol
Measurement conditions
Consumption current ICC
During watchdog timer operation
Detection voltage
VSL VS=OPEN, VCC
VSH VS=OPEN, VCC
Detection voltage
temperature coefficient
VS
T
VSH-VSL, VCC
Hysteresis voltage
VHYS
CK input threshold
VTH
IIH
CK input current
IIL
VCK=5.0V
VCK=0V
Output voltage (High) VOH
I =-1µA, V =OPEN --------------------------------------------
RESET
S
VOL1
I =0.5mA, V =0V --------------------------------------------
RESET
S
Output voltage (Low)
VOL2
I =2.0mA, V =0V --------------------------------------------
RESET
S
Output sync current
MM1145A
CT charge MM1145B
current MM1145A
MM1145B
Minimum operating power supply
-----------------------------------------------
voltage to ensure RESET
IOL
ICT1
ICT2
VCCL
V =1.0V, V =0V --------------------------------------------
RESET
S
During watchdog timer operation
During power ON reset operation
V RESET =0.4V --------------------------------------------
I RESET =0.1mA --------------------------------------------
Min. Typ. Max.
150 180
4.05 4.20 4.35
4.15 4.30 4.45
Units
µA
V
±0.01
%/°C
50 100 150 mV
0.8 1.2 2
V
0
1
µA
-14.5 -8.5 -4.5
4.0 4.5
V
0.10 0.20
0.35
V
0.15
0.30
2
4
mA
-0.40 -0.48 -0.60
µA
-0.17 -0.22 -0.30
-0.21 -0.31 -0.62
µA
-0.62 -0.93 -2.33
0.8 1.0
V
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