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MAX6316 Datasheet(PDF) 3 Page - Maxim Integrated Products

Part No. MAX6316
Description  5-Pin μP Supervisory Circuits with Watchdog and Manual Reset
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Maker  MAXIM [Maxim Integrated Products]
Homepage  http://www.maxim-ic.com
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5-Pin µP Supervisory Circuits with
Watchdog and Manual Reset
_______________________________________________________________________________________
3
Note 3: This is the minimum time RESET must be held low by an external pull-down source to set the active pull-up flip-flop.
Note 4: Measured from RESET VOL to (0.8 x VCC), RLOAD = ∞.
Note 5: WDI is internally serviced within the watchdog period if WDI is left unconnected.
Note 6: The WDI input current is specified as the average input current when the WDI input is driven high or low. The WDI input is
designed for a three-stated-output device with a 10µA maximum leakage current and capable of driving a maximum capaci-
tive load of 200pF. The three-state device must be able to source and sink at least 200µA when active.
µA
1.0
ILKG
Open-Drain Reset Output
Leakage Current
ns
400
tS
Transition Flip-Flop Setup Time
333
ns
333
tR
RESET Output Rise Time
(Note 4)
UNITS
MIN
TYP
MAX
SYMBOL
PARAMETER
(Note 3)
VCC = 5.0V, CL = 200pF
VCC = 3.0V, CL = 120pF
CONDITIONS
ELECTRICAL CHARACTERISTICS (continued)
(VCC = 2.5V to 5.5V, TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1)
666
666
VCC = 5.0V, CL = 400pF
VCC = 3.0V, CL = 250pF
V
0.4
0.65
VPTH
Active Pull-Up Enable Threshold
VCC = 5.0V
mA
20
RESET Active Pull-Up Current
VCC = 5.0V
k
4.2
4.7
5.2
RESET Pull-Up Resistance
V
0.3
VOL
RESET Output Voltage
VCC ≥ 1.0V, ISINK = 50µA
0.3
VCC ≥ 1.2V, ISINK = 100µA
0.3
VCC ≥ 2.7V, ISINK = 1.2mA
0.4
VCC ≥ 4.5V, ISINK = 3.2mA
ms
4.3
6.3
9.3
tWD
Watchdog Timeout Period
MAX63_ _ _ W-T
71
102
153
MAX63_ _ _ X-T
sec
1.12
1.6
2.4
MAX63_ _ _ Y-T
17.9
25.6
38.4
MAX63_ _ _ Z-T
ns
50
tWDI
WDI Pulse Width
VIL = 0.3 x VCC, VIH = 0.7 x VCC
V
0.3 x VCC
VIL
WDI Input Threshold
(Note 5)
0.7 x VCC
120
160
IWDI
WDI Input Current
(Note 6)
WDI = VCC, time average
-20
-15
VWDI = 0, time average
VIH
V
0.8
VIL
MR Input Threshold
VTH > 4.0V
2.0
VIH
0.3 x VCC
VIL
VTH < 4.0V
0.7 x VCC
VIH
µs
1
MR Input Pulse Width
ns
100
MR Glitch Rejection
k
35
52
75
MR Pull-Up Resistance
ns
230
MR to Reset Delay
VCC = 5V
µA
BIDIRECTIONAL RESET OUTPUT (MAX6316M/MAX6318MH/MAX6319MH)
OPEN-DRAIN RESET OUTPUT (MAX6320P/MAX6321HP/MAX6322HP)
WATCHDOG INPUT (MAX6316/MAX6317H/MAX6318_H/MAX6320P/MAX6321HP)
MANUAL-RESET INPUT (MAX6316_/MAX6317H/MAX6319_H/MAX6320P/MAX6322HP)




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