MAX705C(1995) Ver la hoja de datos (PDF) - Maxim Integrated
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MAX705C Datasheet PDF : 12 Pages
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Low-Cost, µP Supervisory Circuits
ABSOLUTE MAXIMUM RATINGS
Terminal Voltage (with respect to GND)
VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 6.0V
All Other Inputs (Note 1) . . . . . . . . . . . . . . . -0.3V to (VCC + 0.3V)
Input Current
VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20mA
GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20mA
Output Current (all outputs) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20mA
Continuous Power Dissipation
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, 10sec) . . . . . . . . . . . . . . . . +300°C
Note 1: The input voltage limits on PFI and MR can be exceeded if the input current is less than 10mA.
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
(VCC = 4.75V to 5.5V for MAX705/MAX707/MAX813L, VCC = 4.5V to 5.5V for MAX706/MAX708, TA = TMIN to TMAX, unless otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
Operating Voltage Range
Supply Current
Reset Threshold (Note 2)
Reset Threshold Hysteresis (Note 2)
Reset Pulse Width (Note 2)
RESET Output Voltage
RESET Output Voltage
Watchdog Timeout Period
WDI Pulse Width
WDI Input Threshold
Low
High
WDI Input Current
WDO Output Voltage
MAX70_C
1.0
5.5
VCC MAX813LC
MAX70_E/M, MAX813LE/M
1.1
5.5
V
1.2
5.5
MAX705C, MAX706C, MAX813LC
150
350
MAX705E/M, MAX706E/M, MAX813LE/M
ISUPPLY MAX707C, MAX708C
150
500
µA
50
350
MAX707E/M, MAX708E/M
50
500
MAX705, MAX707, MAX813L
VRT
MAX706, MAX708
4.50 4.65 4.75
V
4.25 4.40 4.50
40
mV
tRS
140
200
280
ms
ISOURCE = 800µA
VCC - 1.5
ISINK = 3.2mA
MAX70_C, VCC = 1V, ISINK = 50µA
0.4
V
0.3
MAX70_E/M, VCC = 1.2V, ISINK = 100µA
0.3
MAX707, MAX708, ISOURCE = 800µA VCC - 1.5
MAX707, MAX708, ISINK = 1.2mA
0.4
MAX813LC, ISOURCE = 4µA, VCC = 1.1V 0.8
MAX813LE/M, ISOURCE = 4µA, VCC = 1.2V 0.9
V
MAX813L
ISOURCE = 800µA VCC - 1.5
ISINK = 3.2mA
0.4
tWD MAX705, MAX706, MAX813L
1.00 1.60 2.25 sec
tWP VIL = 0.4V, VIH = (VCC) (0.8)
50
ns
MAX705, MAX706, MAX813L,
VCC = 5V
3.5
0.8
V
MAX705, MAX706, MAX813L, WDI = VCC
50
150
µA
MAX705, MAX706, MAX813L, WDI = 0V -150 -50
MAX705, MAX706, MAX813L,
ISOURCE = 800µA
MAX705, MAX706, MAX813L,
ISINK = 1.2mA
VCC - 1.5
V
0.4
2 _______________________________________________________________________________________
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