MAX814(1995) View Datasheet(PDF) - Maxim Integrated
Part Name
Description
Manufacturer
MAX814 Datasheet PDF : 16 Pages
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±1% Accuracy, Low-Power, +3V and +5V
µP Supervisory Circuits
ABSOLUTE MAXIMUM RATINGS
Terminal Voltage (with respect GND)
VCC ....................................................................-0.3V to +6.0V
All Other Pins (Note 1)........................... -0.3V to (VCC + 0.3V)
Terminal Current (PFI, RESET IN, MR)................................10mA
Terminal Current (all other pins) .........................................20mA
Continuous Power Dissipation (TA = +25°C)
Plastic DIP (derate 9.09mW/°C above +70°C) ............727mW
SO (derate 5.88mW/°C above +70°C) .........................471mW
Operating Temperature Ranges
Commercial.........................................................0°C to +70°C
Extended ...........................................................-40°C to +85C
Storage Temperature Range .............................-65°C to +125°C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS, +5V Parts (MAX814/MAX815K, L, N)
(VCC = 4.85V to 5.5V for MAX814K/MAX815K, VCC = 4.75V to 5.5V for MAX814L/MAX815L, VCC = 4.60V to 5.5V for MAX814N/
MAX815N, TA = TMIN to TMAX, unless otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
Operating Voltage Range
MAX814_C, MAX815_C
VCC
MAX814_E, MAX815_E
1.0
5.5
V
1.2
5.5
Supply Current
MAX814_C, MAX815_C
ISUPPLY
MAX814_E, MAX815_E
75
µA
85
MAX814K, MAX815K
4.75
4.85
Reset Threshold
VRT MAX814L, MAX815L
4.65
4.75
V
MAX814N, MAX815N
4.50
4.60
Reset Threshold Hysteresis
VRT
0
mV
Reset Pulse Width
tRS
140
200
250
ms
RESET Output Voltage
VOH
VOL
MAX814
ISOURCE = 800µA
ISINK = 3.2mA
VCC -1.5
V
0.4
VOH ISOURCE = 800µA
VCC -1.5
RESET, WDO, PFO, LOW LINE
Output Voltage
ISINK = 3.2mA
VOL MAX814_C/MAX815_C, VCC = 1.0V, ISINK = 50µA
0.4
V
0.3
MAX814_E/MAX815_E, VCC = 1.2V, ISINK = 100µA
0.3
Watchdog Timeout Period
tWD MAX815
1.12
2.00 sec
WDI Pulse Width
WDI Input Threshold
tWP
VWDI
MAX815
MAX815, VCC = 5.0V
Low
High
50
ns
0.8
V
2.4
WDI Input Current
IWDI WDI = VCC or WDI = 0V
-1.0
1.0
µA
MR to WDO High Delay
tWDO MAX815 (Note 1)
1
µs
LOW LINE to RESET Differential
Threshold
∆VLL
MAX814_C, VCC falling
MAX814_E, VCC falling
50
70
mV
48
73
LOW LINE Threshold
VLLT
MAX814K, VCC rising
MAX814L, VCC rising
MAX814N, VCC rising
4.93
4.83
V
4.68
2 _______________________________________________________________________________________
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