MM1075XF 반도체 회로 부품 판매점
System Reset (with built-in watchdog timer) Monolithic IC
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 MITSUMI |
MITSUMI
System Reset (with built-in watchdog timer) MM1075
System Reset (with built-in watchdog timer)
Monolithic IC MM1075
Outline
This IC functions in a variety of CPU systems and other logic systems to generate a reset signal and reset the
system accurately during momentary interruption or lowering of power supply voltage.
It also has a built-in watchdog timer for operation diagnosis. This prevents the system from running wild by
generating an intermittent reset pulse during system mis-operation.
Features
1. Built-in watchdog timer
2. Low minimum operating voltage
VCC=0.8V typ.
3. Both positive and negative logic reset output can be extracted
4. Accurate detection of drop in power supply voltage
5. Detection voltage has hysteresis
6. Few external parts
1 capacitor
7. Timer monitoring time can be varied by using an external resistor
Package
DIP-8A (MM1075XD)
SOP-8A (MM1075XF)
Applications
Microcomputer system monitoring, etc.
Absolute Maximum Ratings (Ta=25°C)
Item
Storage temperature
Operating temperature
Power supply voltage
Voltage applied to VS & CK pins
--------------------------------------------------------------
Voltage applied to RESET, RESET pin
Allowable loss
Symbol
TSTG
TOPR
VCC max.
VVS &VCK
VOH
Pd
Rating
-40~+125
-20~+70
-0.3~+10
-0.3~+10
-0.3~+10
400
Units
°C
°C
V
V
V
mW
MITSUMI
System Reset (with built-in watchdog timer) MM1075
Electrical Characteristics (DC) (Except where noted otherwise, Ta=25°C, VCC=5V)
Item
Measurement
Symbol
circuit
Measurement conditions
Min. Typ. Max. Units
Consumption current ICC
1 During watchdog timer operation
0.7 1.0 mA
Detection voltage
VSL
VSH
1 VS=OPEN, VCC
1 VS=OPEN, VCC
4.05 4.20 4.35
4.15 4.30 4.45
V
Detection voltage
VS/ T
temperature coefficient
1
±0.01
%/°C
Hysteresis voltage
VHYS
1 VSH-VSL, VCC
50 100 150 mV
CK input threshold
VTH
1
0.8 1.2 2
V
CK input current
IIH
IIL
1
1
VCK=5V
VCK=0V
01
-20 -10 -3
µA
Output voltage (High)
VOH1
VOH2
VOL1
1
1
1
I RESET =-5µA, VS=OPEN----------------------------------------------------------------
I RESET =-5µA, VS=0V----------------------------------------------------------------
I RESET =3mA, VS=0V----------------------------------------------------------------
4.5 4.8
4.5 4.8
0.2 0.4
V
Output voltage (Low)
VOL2
VOL3
1
1
I RESET =10mA, VS=0V----------------------------------------------------------------
IRESET=0.5mA, VS=OPEN
0.3 0.5
0.2 0.4
V
Output sink current
VOL4
IOL1
IOL2
1
1
1
IRESET=1mA, VS=OPEN
V RESET =1.0V, VS=0V----------------------------------------------------------------
VRESET=1.0V, VS=OPEN
0.3 0.5
10 16
12
mA
*CT charge current 1
ICT1
ICT2
1
1
VTC=1.0V, RCT=OPEN during
watchdog timer operation
VTV=1.0V during power ON
reset operation
-0.8 -1.2 -2.4 µA
-0.8 -1.2 -2.4 µA
Minimum operating power supply
----------------------------------------------------------------------------
voltage to ensure RESET
VCCL1
Minimum operating power supply
VCCL2
voltage to ensure RESET
1
1
V RESET =0.4V----------------------------------------------------------------
I RESET =0.2mA----------------------------------------------------------------
VRESET=VCC-0.1V
RL2 (between Pin 2 and GND)
0.8 1.0 V
0.8 1.0 V
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국내 전력반도체 판매점
상호 : 아이지 인터내셔날
전화번호 : 051-319-2877
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IGBT, TR 모듈, SCR, 다이오드모듈, 각종 전력 휴즈
( IYXS, Powerex, Toshiba, Fuji, Bussmann, Eaton )
전력반도체 문의 : 010-3582-2743
관련 데이터시트
MM1075XD
System Reset (with built-in watchdog timer) Monolithic IC - MITSUMI
MM1075XF
System Reset (with built-in watchdog timer) Monolithic IC - MITSUMI