MM1075 Datasheet, PDF (8/10 Pages) Mitsumi Electronics, Corp. – System Reset (with built-in watchdog timer) Monolithic IC

MITSUMI
System Reset (with built-in watchdog timer) MM1075
Detection Voltage Adjustment 2 ^{(raising detection voltage)}
Graph 2. Detection voltage change using MM1075
external resistor
VSH value
4.0
VSL value
3.5
Detection voltage can be changed by
connecting resistor R1 externally to
MM1075 VS pin. Determine R1 according
to graph 2 when changing VS.
3.0
100 200 300 400 500 600
Vs pin external resistance
(R1) (kΩ)
Characteristics
Power supply current-Power supply
voltage
1.4
1.2
1.0
0.8
0.6
0.4
Clock pulse input time
0.2
1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10.0
Power supply voltage
VCC (V)
Output voltage-Power supply
voltage (RESET pin)
PULL UP resistance 2.2kΩ
7.0
6.0
5.0
4.0
3.0
2.0
Ta=-25^°C
Ta=25^°C
1.0
Ta=75^°C
1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0
Power supply voltage
VCC (V)
Output voltage-Power supply voltage
(RESET pin)
PULL UP resistance 10kΩ
7.0
6.0
5.0
Ta=20^°C, 25^°C, 75^°C
4.0
3.0
2.0
1.0
1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0
Power supply voltage
VCC (V)
Detection voltage (VSL, VSH) temperature
-----------------------------------------------------------------
(RESET, RESET pins)
4.50
4.40
4.30
4.20
4.10
4.00
3.90
VSH
VSL
-40-20 0 20 40 60 80 100
Ambient temperature Ta (°C)