MITSMI MM1106XD, MM1106XF Datasheet
MITSUMI
System Reset (with watchdog timer+battery back-up) MM1106
Outline
This IC combines the popular watchdog timer with a battery back-up, resulting in an IC that is easier to use.
The watchdog timer has a built-in power ON reset function, and both the timer and the battery back-up
section have low current consumption.
Features
1. Low current consumption 270µA typ.
2. Watchdog timer
Detection voltage 4.2V typ.
C
T charging current
-
0.24µA typ.
3. CS
CS detection voltage 4.4V typ.
Output voltage low level 0.1V typ.
4. Battery back-up
Power supply switching voltage 3.3V typ.
Input/output voltage difference (normal) 0.3V typ.
Input/output voltage difference (back-up) 0.3V typ.
Loss current (current consumption for back-up) 0.1µA typ.
System Reset (with watchdog timer+battery back-up)
Monolithic IC MM1106
Package
SOP-14B (MM1106XF)
DIP-14A (MM1106XD)
Applications
1. Fax machines
2. Photocopiers
3. Air conditioners
4. Control equipment
5. Sequencers, etc.
Item Symbol Ratings Units
Power supply voltage V
CC max.
-
0.3~+7 V
Voltage applied to input pin V
IN
-
0.3~VCC+0.3 (
<
=
+7)
V
Voltage applied to output pin V
OUT
-
0.3~VCC+0.3 (
<
=
+7)
V
V
OUT output current 1 IL150mA
V
OUT output current 2 IL2 120 µA
Allowable loss Pd 300 mW
Storage temperature T
STG
-
40~+125
°
C
Absolute Maximum Ratings
(Ta=25°C)
Note: IL1 expresses output current value from main power supply (VCC) and IL2 expresses
output current value from battery (V
BAT).
MITSUMI
System Reset (with watchdog timer+battery back-up) MM1106
Recommended Operating Conditions
Item Symbol Ratings Units
Power supply voltage V
CC +2.5~+6.5 V
RESET sink current
I
OLR 0~1.0 mA
CS sink current I
OLC 0~500 µA
V
OUT output current 1 IL1 0~30 mA
V
OUT output current 2 IL2 0~80 µA
Clock input high level voltage V
CKH 2.0< V
Clock input low level voltage V
CKL <0.4 V
Clock monitoring time setting T
WD 1~1000 mS
Clock rise and fall times
TRCK, TFCK <100 µS
Power supply voltage rise times T
RVCC 100< µS
Power supply voltage fall times T
FVCC 50< µS
TC pin capacitance C
T 0.0002~2 µF
Operating temperature T
OP
-
25~+75
°
C
Item Symbol Measurement conditions Min. Typ. Max. Units
Consumption current I
CC VCC=5.0V, IO=0µA 270 400 µA
RESET detection voltage
V
SLR VCC : Hi Lo 4.00 4.20 4.40 V
Detection voltage V
SR
±0.01 ±0.05 %/°C
temperature coefficient R T
Hysteresis voltage R V
HYSR VCC : Lo Hi 0.05 0.10 0.20 V
CK input threshold V
TH 0.8 1.2 2 V
CK input current
I
IH VCK=5.0V 0 1
µA
I
IL VCK=0V
-
15
-
7
-
2
Output voltage R H V
OHR IRESET
--------------------------------------------
=-5µA 4.0 4.5 V
Output voltage R L V
OLR IRESET
--------------------------------------------
=1.0mA 0.3 0.5 V
Output sync current R I
OLR VCC=3.5V, VRESET
--------------------------------------------
=1V 1 2 mA
Output source current R I
OHR VRESET
--------------------------------------------
=4.5V 8 15 µA
C
T charge current
I
CT1VTC=0.7V during watchdog timer operation
-
0.48-0.24-0.16 µA
I
CT2VTC=0.7V during power ON reset operation
-
0.48-0.24-0.16 µA
CS detection voltage V
SLC VCC : Hi Lo 4.20 4.40 4.60 V
Detection voltage V
SC
±0.01 ±0.05 %/°C
temperature coefficient C T
Hysteresis voltage C V
HYSC VCC : Hi Lo 0.05 0.10 0.20 V
Output voltage C H V
OHC VCC=5.0V, ICS=1µA 4.50 4.65 V
Output voltage C L V
OLC VCC=3.5V, ICS=1µA 0.1 0.4 V
Output sync current C I
OLC VCC=3.5V, VCS=0.3µA 0.5 1.0 mA
Output source current C I
OHC VCC=5.0V, VCS=4.5V 50 75 µA
Power supply switching voltage
VBB VCC : Hi Lo 3.15 3.30 3.45 V
Detection voltage V
BB
±0.01 ±0.05 %/°C
temperature coefficient B T
Hysteresis voltage B V
HYSB VCC : Lo Hi 0.05 0.10 0.20 V
I/O voltage difference 1 (normal)
VSAT1VCC=5.0V, IO=-30mA 0.3 0.5 V
I/O voltage difference 2 (backup)
VSAT2IO=-80µA, VBAT=3.0V 0.3 0.4 V
Electrical Characteristics
(Except where noted otherwise, Ta=25°C, VCC=5.0V, VBAT=3.0V)
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