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MAX792 Datasheet(PDF) 3 Page - Maxim Integrated Products

Part No. MAX792
Description  Microprocessor and Non-Volatile Memory Supervisory Circuits
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Maker  MAXIM [Maxim Integrated Products]
Homepage  http://www.maxim-ic.com
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MAX792 Datasheet(HTML) 3 Page - Maxim Integrated Products

 
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_______________________________________________________________________________________
3
Microprocessor and Non-Volatile
Memory Supervisory Circuits
ELECTRICAL CHARACTERISTICS (continued)
(VCC = 2.65V to 5.5V, TA = TMIN to TMAX, unless otherwise noted.)
PARAMETER
CONDITIONS
ms
MIN
TYP
MAX
UNITS
µA
LOWLINE Short-Circuit Current
Output source current, VCC = 5.5V
10
50
SWT connected to VCC, VCC = 5V
1.00
1.60
2.25
SWT connected to VCC, VCC = 3V
1.00
1.60
2.25
4.7nF capacitor connected from SWT to GND,
VCC = 3V
70
Watchdog Timeout Period
4.7nF capacitor connected from SWT to GND,
VCC = 5V
MAX792/MAX820L/M
100
sec
50
120
210
Low-Line Threshold Voltage
(Internal Threshold Mode)—VTH
MAX792/MAX820R/S/T
VCC = 5V
40
100
210
mV
100
MAX792, VCC = 5V OR VCC = 3V
Watchdog Input Pulse Width
VIL = 0V, VIH = VCC
1.25
1.30
1.35
Low-Line Threshold Voltage
(External Programming Mode)
VCC = 3V
MAX820, VCC = 5V OR VCC = 3V
300
ns
1.274
1.30
1.326
V
Low-Line Hysteresis
(Internal Threshold Mode)
ISINK = 50µA, VCC = 1V, VCC falling
20
mV
0.01
0.30
ISINK = 1.6mA
0.1
0.4
ISOURCE = 1mA
VCC - 1
WDO Output Voltage
ISOURCE = 100µA
VCC - 0.5
V
ISOURCE = 100µA
WDPO to WDO Delay
70
ns
WDPO Duration
0.5
1.7
6.0
ms
ISINK = 50µA, VCC = 1V, VCC falling
0.01
0.3
ISINK = 1.6mA
0.1
0.4
VIH
ISOURCE = 1mA
VCC - 1
WDPO Output Voltage
VIL
VCC - 0.5
V
VIH
0.75 x VCC
VIL
VCC = 4.25V
0.8
0.9 x VCC
WDI Threshold Voltage
VCC = 2.55V
0.2
V
WDI Input Current
±1
µA
LLIN/REFOUT Leakage Current
External Programming Mode
±0.01
±25
nA
Low-Line Comparator Delay
VCC falling
450
µs
ISINK = 3.2mA
0.4
LOWLINE Voltage
ISOURCE = 1µA
VCC - 1
V
LOW-LINE COMPARATOR
WATCHDOG FUNCTION


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