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MAX6316 Datasheet(PDF) 3 Page - Maxim Integrated Products

No. de Pieza. MAX6316
Descripción  5-Pin μP Supervisory Circuits with Watchdog and Manual Reset
Descarga  15 Pages
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Fabricante  MAXIM [Maxim Integrated Products]
Página de inicio  http://www.maxim-ic.com
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MAX6316 Datasheet(HTML) 3 Page - Maxim Integrated Products

 
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5-Pin µP Supervisory Circuits with
Watchdog and Manual Reset
_______________________________________________________________________________________
3
Note 4: This is the minimum time RESET must be held low by an external pulldown source to set the active pullup flip-flop.
Note 5: Measured from RESET VOL to (0.8 x VCC), RLOAD = ∞.
Note 6: WDI is internally serviced within the watchdog period if WDI is left unconnected.
Note 7: 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 capac-
itive load of 200pF. The three-state device must be able to source and sink at least 200µA when active.
ELECTRICAL CHARACTERISTICS (continued)
(VCC = 2.5V to 5.5V, TA = -40°C to +125°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
BIDIRECTIONAL
RESET OUTPUT (MAX6316M/MAX6318MH/MAX6319MH)
Transitional Flip-Flop Setup Time
tS
(Note 4)
400
ns
VCC = 3.0V, CL = 120pF
333
VCC = 5.0V, CL = 200pF
333
VCC = 3.0V, CL = 250pF
666
RESET Output Rise Time
(Note 5)
tR
VCC = 5.0V, CL = 400pF
666
ns
Active Pullup Enable Threshold
VPTH
VCC = 5.0V
0.4
0.65
V
RESET Active Pullup Current
VCC = 5.0V
20
mA
TA = -40°C to +85°C
4.2
4.7
5.2
RESET Pullup Resistance
TA = -40°C to +125°C
3.6
4.7
5.8
OPEN-DRAIN
RESET OUTPUT (MAX6320P/MAX6321HP/MAX6322HP)
VCC > 1.0V, ISINK = 50µA
0.3
VCC > 1.2V, ISINK = 100µA
0.3
VCC > 2.7V, ISINK = 1.2mA
0.3
RESET Output Voltage
VOL
VCC > 4.5V, ISINK = 3.2mA
0.4
V
Open-Drain Reset Output
Leakage Current
ILKG
1.0
µA
WATCHDOG INPUT (MAX6316/MAX6317H/MAX6318_H/MAX6320P/MAX6321HP)
MAX63_ _ _W-T
4.3
6.3
9.3
MAX63_ _ _X-T
71
102
153
ms
MAX63_ _ _Y-T
1.12
1.6
2.4
Watchdog Timeout Period
tWD
MAX63_ _ _Z-T
17.9
25.6
38.4
s
WDI Pulse Width
tWDI
VIL = 0.3 x VCC, VIH = 0.7 x VCC
50
ns
VIL
0.3 xVCC
WDI Input Threshold
VIH
(Note 6)
0.7 x VCC
V
WDI = VCC, time average
120
160
WDI Input Current
(Note 7)
IWDI
VWDI = 0V, time average
-20
-15
µA
MANUAL RESET INPUT (MAX6316_/MAX6317H/MAX6319_H/MAX6320P/MAX6322HP)
VIL
0.8
VIH
VTH > 4.0V
2.0
VIL
0.3 xVCC
MR Input Threshold
VIH
VTH < 4.0V
0.7 x VCC
V
TA = -40°C to +85°C
1
MR Input Pulse Width
TA = -40°C to +125°C
1.5
µs
MR Glitch Rejection
100
ns
MR Pullup Resistance
35
52
75
MR to Reset Delay
VCC = 5V
230
ns


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