Monolithic IC. MM1135 Datasheet

MM1135 IC. Datasheet pdf. Equivalent


Mitsumi Electronics MM1135
( DataSheet : www.DataSheet4U.com )
MITSUMI
System Reset (with built-in watchdog timer) MM1135, MM1136
System Reset (with built-in watchdog timer)
Monolithic IC MM1135, MM1136
Outline
These ICs were developed to drive low voltage batteries, and have a watchdog timer with built-in
microcomputer reset voltage detection circuit and low battery detection circuit.
A single reference voltage is used for low battery voltage detection and microcomputer reset voltage
detection, so detection voltage difference is uniform (.=. 0.2V). Further, there is a built-in watchdog timer for
operation diagnosis, which prevents the system from running wild by generating an intermittent reset pulse
during system mis-operation.
Features
1. Accurate voltage drop detection voltage
1. Low battery detection
3.4V±3%
2. Power supply voltage detection 3.2V±3%
3. Detection voltage error
0.2V±20mV 1-2
4. Hysteresis Both
50mV typ.
2. Watchdog function stop pin (can be made to function only as reset IC during VCC rise)
3. Low current consumption
150µA typ.
Package
SOP-8C (MM1135XF, MM1136XF)
Applications
1. 3V cordless telephones
2. Various types of small, handy equipment
Series Table
Model
MM1135
MM1136
VSLB
3.4V
TPR : Reset hold time during VCC rise
TWD : Timer monitoring time
TWR : Reset time
VSLB : Battery check detection voltage
VSLR : Reset detection voltage
VSLR
3.2V
TPR
100mS
100mS
TWD
10mS
100mS
TWR
2mS
2mS
*CT=0.02µF
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MM1135 Datasheet
Recommendation MM1135 Datasheet
Part MM1135
Description (MM1135 / MM1136) System Reset (with built-in watchdog timer) Monolithic IC
Feature MM1135; ( DataSheet : www.DataSheet4U.com ) MITSUMI System Reset (with built-in watchdog timer) MM1135, MM.
Manufacture Mitsumi Electronics
Datasheet
Download MM1135 Datasheet




Mitsumi Electronics MM1135
MITSUMI
Pin Assignment
System Reset (with built-in watchdog timer) MM1135, MM1136
8765
1234
SOP-8C
1 TC
----------------------------------------------------------------------------------------
2 BC (RESET)
3 CK
4 GND
5 VCC
6 RCT
7 VS
----------------------------------------------------------------------------------------
8 RESET
Pin Description
Pin No.
1
2
3
4
5
6
7
8
Pin name
TC
----------------------------------------------------------------------------------------
BC (RESET)
CK
GND
VCC
RCT
VS
----------------------------------------------------------------------------------------
RESET
Block Diagram
Function
TWD, TWR, TPR time setting pins.
Battery check output pin (RESET low level output) for 3.4V
Clock input pin
GND pin
Power supply voltage input pin
Watchdog timer stop pin
Operation OPEN, Stop connect to GND
Detection voltage fine adjustment pin
Reset output pin (low output)



Mitsumi Electronics MM1135
MITSUMI
System Reset (with built-in watchdog timer) MM1135, MM1136
Absolute Maximum Ratings
Item
Power supply voltage
Voltage applied to input pin
Voltage applied to output pin
Allowable loss
Storage temperature
Symbol
VCC max.
VIN
VOUT
Pd
TSTG
Rating
-0.3~+7
-0.3~VCC+0.3 ( <= +7)
-0.3~VCC+0.3 ( <= +7)
450
-40~+125
Units
V
V
V
mW
°C
Recommended Operating Conditions
Item
Power supply voltage
--------------------------------------------------
RESET sync current
BC sync current
Clock input high level voltage
Clock input low level voltage
Clock monitoring time setting
Clock rise and fall times
Power supply voltage rise times
Power supply voltage fall times
TC pin capacitance
Operating temperature
Symbol
VCC
IOLR
IOLC
VCKH
VCKL
TWD
tRCK, tFCK
tRVCC
tFVCC
CT
TOP
Rating
+2.5~+6.5
0~1.5
0~1.5
1.4<
<0.4
1~1000
<100
100<
50<
0.002~2
-25~+75
Units
V
mA
mA
V
V
mS
µS
µS
µS
µF
°C





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