MAX6323UT-T Ver la hoja de datos (PDF) - Maxim Integrated
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MAX6323UT-T
Maxim Integrated
MAX6323UT-T Datasheet PDF : 14 Pages
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MAX6323/MAX6324
μP Supervisory Circuits with Windowed
(Min/Max) Watchdog and Manual Reset
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)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
WATCHDOG INPUT AND OUTPUT
MAX632_AUT_ _
1
1.5
MAX632_BUT_ _
10
15
MAX632_CUT_ _
10
15
Watchdog Timeout (Fast)
(Notes 2, 3)
tWD1
MAX632_DUT_ _
MAX632_EUT_ _
10
15
ms
10
15
MAX632_FUT_ _
17
23
MAX632_GUT_ _
29
39
MAX632_HUT_ _
543
719
MAX632_AUT_ _
10
15
MAX632_BUT_ _
100
150
ms
MAX632_CUT_ _
300
450
Watchdog Timeout (Slow)
(Note 4)
tWD2
MAX632_DUT_ _
MAX632_EUT_ _
10
15
s
60
90
MAX632_FUT_ _
MAX632_GUT_ _
47
63
ms
82
108
MAX632_HUT_ _
1.3
1.8
s
Minimum Watchdog Input
Pulse Width
300
ns
WDI Glitch Immunity
WDI Input Voltage
WDI Input Current
WDPO Pulse Width
MANUAL RESET INPUT
VCC = 5.5V
VIH
VIL
VWDI = 0V
VWDI = VCC
VIL = 0.8V, VIH = 0.75V x VCC
100
ns
0.75 x VCC
V
0.8
-1.5
-1
µA
1
1.5
0.5
1
3
ms
MR Input Voltage
VIH
VIL
MR Minimum Pulse Width
0.7 x VCC
V
0.3 x VCC
1
µs
MR Glitch Immunity
MR to Reset Delay
MR Pullup Resistance
VCC = 2.5V
VCC = 2.5V
100
ns
120
ns
50
85
kΩ
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.
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