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MAX6323 Datasheet(PDF) 3 Page - Maxim Integrated Products

Part No. MAX6323
Description  μP Supervisory Circuits with Windowed (Min/Max) Watchdog and Manual Reset
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Maker  MAXIM [Maxim Integrated Products]
Homepage  http://www.maxim-ic.com
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 3 page
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MR Input Voltage
MR Minimum Pulse Width
MR Glitch Immunity
MR to Reset Delay
MR Pullup Resistance
µP Supervisory Circuits with Windowed
(Min/Max) Watchdog and Manual Reset
_______________________________________________________________________________________
3
CONDITIONS
UNITS
MIN
TYP
MAX
SYMBOL
PARAMETER
ELECTRICAL CHARACTERISTICS (continued)
(VCC = full range, TA = -40°C to +125°C, unless otherwise noted. Typical values are at VCC = 3V, TA = +25°C.) (Note 1)
Note 1: Devices are tested at TA = +25°C and guaranteed by design for TA = TMIN to TMAX, as specified.
Note 2: WDPO will pulse low if a falling edge is detected on WDI before this timeout period expires.
Note 3: To avoid a potential fake fault, the first WDI pulse after the rising edge of RESET or WDPO will not create a fast watchdog
timeout fault.
Note 4: WDPO will pulse low if no falling edge is detected on WDI after this timeout period expires.
MAX632_AUT_ _
1
1.5
MAX632_BUT_ _
10
15
MAX632_CUT_ _
10
15
MAX632_DUT_ _
10
15
MAX632_EUT_ _
10
15
MAX632_FUT_ _
17
23
MAX632_GUT_ _
29
39
Watchdog Timeout (Fast)
(Notes 2, 3)
MAX632_HUT_ _
543
719
ms
tWD1
MAX632_AUT_ _
10
15
MAX632_BUT_ _
100
150
MAX632_CUT_ _
300
450
ms
MAX632_DUT_ _
10
15
MAX632_EUT_ _
60
90
s
MAX632_FUT_ _
47
63
MAX632_GUT_ _
82
108
ms
tWD2
MAX632_HUT_ _
1.3
1.8
s
Watchdog Timeout (Slow)
(Note 4)
300
ns
WDI Glitch Immunity
VCC = 5.5V
100
ns
VIH
0.75 x VCC
WDI Input Voltage
VIL
0.8
V
WDI = 0
-1.5
-1
WDI Input Current
WDI = VCC
1
1.5
µA
VIL = 0.8V, VIH = 0.75V x VCC
0.5
1
3
ms
VIH
0.7 x VCC
VIL
0.3 x VCC
V
1
µs
VCC = 2.5V
100
ns
VCC = 2.5V
120
ns
50
85
k
Minimum Watchdog Input
Pulse Width
WATCHDOG INPUT AND OUTPUT
MANUAL RESET INPUT
WDPO Pulse Width




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