MAX792/MAX820
Input Voltage (with respect to GND)
V
CC
.......................................................................-0.3V to +6V
All Other Inputs.......................................-0.3V to (V
CC
+ 0.3V)
Input Current
GND ................................................................................25mA
All Other Outputs ............................................................25mA
Continuous Power Dissipation (T
A
= +70°C)
Plastic DIP (derate 10.53mW/°C above +70°C) ..........842mW
Narrow SO (derate 9.52mW/°C above +70°C) ............762mW
CERDIP (derate 10.00mW/°C above +70°C)...............800mW
Operating Temperature Ranges:
MAX792_C__/MAX820_C__ ...............................0°C to +70°C
MAX792_E__/MAX820_E_ _.............................-40°C to +85°C
MAX792_MJE__/MAX820_MJE_ _ .................-55°C to +125°C
Storage Temperature Range .............................-65°C to +160°C
Lead Temperature (soldering, 10s) .................................+300°C
2 _______________________________________________________________________________________
Microprocessor and Nonvolatile
Memory Supervisory Circuits
PARAMETER
Reset Active Timeout Period
CONDITIONS
MAX820R, T
A
= +25°C, V
CC
falling 2.55 2.66
MIN TYP MAX UNITS
V
CC
rising
MAX820S, T
A
= +25°C, V
CC
falling 2.85 2.96
RESET Output Voltage
Reset Threshold Voltage—
Internal Threshold Mode
(V
TH
)
MAX820T, T
A
= +25°C, V
CC
falling 3.00 3.11
V
140 200 280
MAX792, V
CC
= 5V or V
CC
= 3V 1.25 1.30 1.35
Reset Threshold Voltage
External Threshold Mode (V
TH
)
MAX820, V
CC
= 5V or V
CC
= 3V 1.274 1.30 1.326
V
RESET IN/INT Mode Threshold
(Note 2)
Internal threshold mode 60 mV
RESET IN/INT Leakage Current
±0.01 ±25 nA
Reset Threshold Hysteresis 0.016 x V
TH
V
Reset Comparator Delay V
CC
falling 70 µs
ms
RESET Output Voltage
I
SINK
= 50µA, V
CC
= 1V, V
CC
falling 0.01 0.3
I
SOURCE
= 1mA
2.75 V
Supply Current
V
CC
- 1
I
SINK
= 1.6mA 0.1 0.4
70 150 µA
I
SOURCE
= 100µA V
CC
- 0.5
I
SOURCE
= 1mA V
CC
- 1
V
MAX792L, MAX820L
I
SOURCE
= 100µA
4.50 4.62 4.75
V
CC
- 0.5
V
MAX792M, MAX820M 4.25 4.37 4.50
MAX792R, MAX820R
I
SINK
= 1.6mA
2.55 2.61 2.70
0.1 0.4
MAX792S, MAX820S 2.85 2.91 3.00
MAX792T, MAX820T 3.00 3.06 3.15
MAX820L, T
A
= +25°C, V
CC
falling 4.55 4.70
MAX820M, T
A
= +25°C, V
CC
falling 4.30 4.45
ELECTRICAL CHARACTERISTICS
(V
CC
= 2.75V to 5.5V, 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.
ABSOLUTE MAXIMUM RATINGS
RESET COMPARATOR
Operating Voltage Range
(Note 1)
