Datasheet

MAX814/MAX815/MAX816
±1% Accuracy, Low-Power, +3V and +5V
µP Supervisory Circuits
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS, +5V Parts (MAX814/MAX815K, L, N)
(V
CC
= 4.85V to 5.5V for MAX814K/MAX815K, V
CC
= 4.75V to 5.5V for MAX814L/MAX815L, V
CC
= 4.60V to 5.5V for MAX814N/
MAX815N, T
A
= T
MIN
to T
MAX
, unless otherwise noted.)
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.
Terminal Voltage (with respect GND)
V
CC
....................................................................-0.3V to +6.0V
All Other Pins (Note 1)........................... -0.3V to (V
CC
+ 0.3V)
Terminal Current (PFI, RESET IN, MR
)................................10mA
Terminal Current (all other pins) .........................................20mA
Continuous Power Dissipation (T
A
= +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
MAX814K, V
CC
rising
MAX814_E, V
CC
falling
MAX814_C, V
CC
falling
MAX814_C, MAX815_C
MAX815 (Note 1)
WDI = V
CC
or WDI = 0V
MAX814_E, MAX815_E
MAX815, V
CC
= 5.0V
MAX814_C, MAX815_C
MAX815
MAX815
MAX814
MAX814_E/MAX815_E, V
CC
= 1.2V, I
SINK
= 100µA
MAX814_C/MAX815_C, V
CC
= 1.0V, I
SINK
= 50µA
MAX814_E, MAX815_E
MAX814K, MAX815K
MAX814L, MAX815L
I
SINK
= 3.2mA
MAX814N, MAX815N
I
SOURCE
= 800µA
CONDITIONS
4.93
mV
48 73
∆V
LL
LOW LINE to RESET Differential
Threshold
50 70
µs1t
WDO
MR to WDO High Delay
µA-1.0 1.0I
WDI
WDI Input Current
V
2.4
V
WDI
WDI Input Threshold
0.8
ns50t
WP
WDI Pulse Width
s1.12 2.00t
WD
Watchdog Timeout Period
V
0.3
RESET, WDO, PFO, LOW LINE
Output Voltage
0.3
0.4
V
OL
V
CC
-1.5V
OH
75
V
1.2 5.5
V
CC
1.0 5.5
Operating Voltage Range
V
0.4V
OL
RESET Output Voltage
V
CC
-1.5V
OH
ms140 200 250t
RS
Reset Pulse Width
mV0Reset Threshold Hysteresis
µA
85
I
SUPPLY
Supply Current
4.75 4.85
4.65 4.75 V
4.50 4.60
V
RT
Reset Threshold
UNITSMIN TYP MAXSYMBOLPARAMETER
MAX814L, V
CC
rising 4.83
V
LLT
MAX814N, V
CC
rising 4.68
VLOW LINE Threshold
I
SOURCE
= 800µA
I
SINK
= 3.2mA
Low
High