參數(shù)資料
型號(hào): MM1135
廠商: MITSUMI ELECTRIC
英文描述: System Reset (with built-in watchdog timer) Monolithic IC
中文描述: 系統(tǒng)復(fù)位(內(nèi)置看門狗定時(shí)器)單片集成電路
文件頁數(shù): 1/6頁
文件大?。?/td> 114K
代理商: MM1135
Model
V
SLB
V
SLR
T
PR
100mS
100mS
T
WD
10mS
100mS
T
WR
2mS
2mS
*
C
T
=0.02μF
MM1135
MM1136
3.4V
3.2V
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
2. Power supply voltage detection
3. Detection voltage error
4. Hysteresis Both
2. Watchdog function stop pin (can be made to function only as reset IC during V
CC
rise)
3. Low current consumption
150μA typ.
3.4V±3%
3.2V±3%
0.2V±20mV 1-2
50mV typ.
Package
SOP-8C (MM1135XF, MM1136XF)
Series Table
Applications
1. 3V cordless telephones
2. Various types of small, handy equipment
T
PR
: Reset hold time during V
CC
rise
T
WD
: Timer monitoring time
T
WR
: Reset time
V
SLB
: Battery check detection voltage
V
SLR
: Reset detection voltage
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