Datasheet
V
CC
.......................................................................-0.3V to +6.0V
Input Voltage (with respect to GND)
WDI, WDO, RESET, RESET .................................. -0.3V to V
CC
Operating Temperature Range
C Suffix ...............................................................0°C to +70°C
E Suffix ........................................................... -40°C to +85°C
Rate of Rise, V
CC
..........................................................100V/μs
Power Dissipation (T
A
= +70°C)
8-Pin PDIP (derated 5mW/°C above +70°C)...............400mW
16-Pin SO (derated 7mW/°C above +70°C) ................600mW
Storage Temperature Range ........................... -65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
(V
CC
= +5V, T
A
= +25°C, unless otherwise noted.)
PARAMETER CONDITIONS MIN TYP MAX UNITS
Operating Voltage Range T
A
= full 3.0 5.5 V
Supply Current 5 mA
Power-Up Reset Deassertion T
A
= full 4.50 4.65 4.75 V
Power-Up Reset Assertion T
A
= full 4.4 V
Hysteresis 40 mV
Reset Output Pulse Width 140 500 ms
RESET OUTPUT (Open Drain)
Output low I
SINK
= 1.6mA, V
CC
= 4.4V 0.4
V
Output high I
SOURCE
= 1μA, V
CC
= 5V 3.5
RESET OUTPUT (SO Package
Only)
Output low I
SINK
= 1.6mA, V
CC
= 5V 0.4
V
Output high I
SOURCE
= 1μA, V
CC
= 4.4V 3.5
WDO Output (MAX699 SO
Package Only)
Output low I
SINK
= 1.6mA, V
CC
= 5V 0.4
V
Output high I
SOURCE
= 1μA, V
CC
= 4.4V 3.5
MAX699 Watchdog Timeout
Period
s
MAX699 Minimum WDI Input
Pulse Width
ns
MAX699 WDI Input Threshold V
CC
= +5V
Logic-low 0.8
V
Logic-high 3.8
MAX699 WDI Input Current
WDI = V
CC
20 50
µA
WDI = 0V -50 -15
MAX698/MAX699 Low-Cost, Power-On Reset
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Absolute Maximum Ratings
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