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MAX6854 Datasheet(PDF) 2 Page - Maxim Integrated Products

Part No. MAX6854
Description  Nanopower uP Supervisory Circuits with Manual Reset and Watchdog Timer
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Maker  MAXIM [Maxim Integrated Products]
Homepage  http://www.maxim-ic.com
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MAX6854 Datasheet(HTML) 2 Page - Maxim Integrated Products

 
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Nanopower µP Supervisory Circuits with
Manual Reset and Watchdog Timer
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(VCC = 1.2V to 5.5V, TA = -40°C to +85°C, unless otherwise specified. Typical values are at VCC = 2.5V, TA = +25°C.) (Note 1)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
VCC, Open-Drain RESET to GND ..........................-0.3V to +6.0V
MR, Push-Pull RESET, RESET,
WDI, CT, I.C............................................-0.3V to (VCC + 0.3V)
Input Current, Output Current (all pins)............................±20mA
Continuous Power Dissipation (TA = +70°C)
5-Pin SOT23 (derate 7.1mW/°C above +70°C)............571mW
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature .....................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
TA ≥ 0°C
1.1
5.5
Supply Voltage
VCC
TA = -40°C to +85°C
1.2
5.5
V
VCC = 5.0V
210
400
VCC = 3.3V
190
380
VCC > VTH, no load,
reset output
deasserted (Note 2)
VCC = 1.8V
170
370
nA
Supply Current
ICC
VCC < VTH, no load, reset output asserted
715
µA
VCC Reset Threshold
VTH
VCC falling (see Table 2)
VTH -
2.5%
VTH
VTH +
2.5%
V
Reset Threshold Hysteresis
VHYST
Reset asserted to reset deasserted
0.5
%VTH
D1
10
15
25
D2
40
60
80
D3
150
225
300
D4
1200
1800
2400
D5
300
450
600
Reset Timeout Period
tRP
VCC = VTH + 150mV
(Figures 2 and 3)
D6
600
900
1200
ms
VCC to Reset Delay
tRD
VCC falling from (VTH + 100mV) to
(VTH - 100mV) at 10mV/µs
40
µs
VCC ≥ 1.1V, ISINK = 50µA,
RESET asserted, TA ≥ 0°C
0.3
VCC ≥ 1.2V, ISINK = 100µA,
RESET asserted
0.3
VOL
VCC ≥ 2.12V, ISINK = 1.2mA,
RESET asserted
0.3
VCC ≥ 1.71V, ISOURCE = 200µA,
RESET deasserted, push-pull RESET only
0.8 x VCC
RESET Output Voltage
VOH
VCC ≥ 2.38V, ISOURCE = 500µA,
RESET deasserted, push-pull RESET only
0.8 x VCC
V
Open-Drain RESET Leakage
Current
ILKG
RESET deasserted
25
nA


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