MAX705–MAX708/MAX813L
Low-Cost, µP Supervisory Circuits
2
Maxim Integrated
Terminal Voltage (with respect to GND)
V
CC
.............................................. -0.3V to 6.0V
All Other Inputs (Note 1) ............... -0.3V to (V
CC
+ 0.3V)
Input Current
V
CC
...................................................... 20mA
GND .................................................... 20mA
Output Current (all outputs) ............................. 20mA
Continuous Power Dissipation (T
A
= +70°C)
Plastic DIP (derate 9.09mW/°C above +70°C) ....... 727mW
SO (derate 5.88mW/°C above +70°C) ............... 471mW
µMAX (derate 4.10mW/°C above +70°C) ............ 330mW
CERDIP (derate 8.00mW/°C above +70°C) .......... 640mW
Operating Temperature Ranges
MAX70_C__, MAX813LC__ .................... 0°C to +70°C
MAX70_E__, MAX813LE__ ................... -40°C to +85°C
MAX70_MJA ................................ -55°C to +125°C
Storage Temperature Range ................ -65°C to +160°C
Lead Temperature (soldering, 10s) ................... +300°C
Soldering Temperature (reflow)
Lead(Pb)-free.................................................................+260°C
Containing Lead(Pb)......................................................+240°C
ELECTRICAL CHARACTERISTICS
(V
CC
= 4.75V to 5.5V for MAX705/MAX707/MAX813L, V
CC
= 4.5V to 5.5V for MAX706/MAX708, 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.
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Operating Voltage Range V
CC
MAX70_C 1.0 5.5
V
MAX813LC 1.1 5.5
MAX70_E/M, MAX813LE/M 1.2 5.5
Reset Threshold (Note 2) V
RT
MAX705, MAX707, MAX813L 4.50 4.65 4.75
MAX706, MAX708 4.25 4.40 4.50
40 mV
Reset Pulse Width (Note 2) t
RS
140 200 280 ms
RESET Output Voltage
I
SOURCE
= 800µA V
CC
- 1.5
V
ABSOLUTE MAXIMUM RATINGS
Note 1: The input voltage limits on PFI and MR can be exceeded if the input current is less than 10mA.
Reset Threshold Hysteresis (Note 2)
I
SINK
= 3.2mA 0.4
0.3
0.3
RESET Output Voltage
MAX707, MAX708, I
SOURCE
= 800µA
V
MAX707, MAX708, I
SINK
= 1.2mA 0.4
0.8
0.9
MAX813L
V
CC
- 1.5
0.4
Watchdog Timeout Period t
WD
MAX705, MAX706, MAX813L
1.00 1.60 2.25 s
WDI Pulse Width t
WP
V
IL
= 0.4V, V
IH
= (V
CC
) (0.8) 50 ns
WDI Input Threshold
0.8
V
3.5
MAX70_C, V
CC
= 1V, I
SINK
= 50µA
MAX70_E/M, V
CC
= 1.2V, I
SINK
= 100µA
MAX813LC, I
SOURCE
= 4µA, V
CC
= 1.1V
MAX813LE/M, I
SOURCE
= 4µA, V
CC
= 1.2V
I
SOURCE
= 800µA
I
SINK
= 3.2mA
Low
High
WDI Input Current
MAX705, MAX706, MAX813L, WDI = V
CC
50 150
µA
MAX705, MAX706, MAX813L, WDI = 0V -150 -50
WDO Output Voltage
V
CC
- 1.5
V
0.4
MAX705, MAX706, MAX813L,
V
CC
= 5V
MAX705, MAX706, MAX813L,
I
SOURCE
= 800µA
MAX705, MAX706, MAX813L,
I
SINK
= 1.2mA
V
V
CC
- 1.5
MAX707C, MAX708C 50 350
MAX707E/M, MAX708E/M 50 500
Supply Current I
SUPPLY
MAX705C, MAX706C, MAX813LC 150 350
µA
MAX705E/M, MAX706E/M, MAX813LE/M 150 500
