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| MAX6864UK16D1L Datasheet, PDF (3/17 Pages) Maxim Integrated Products – Nanopower μP Supervisory Circuits with Manual Reset and Watchdog Timer | |||
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Nanopower µP Supervisory Circuits with
Manual Reset and Watchdog Timer
ELECTRICAL CHARACTERISTICS (continued)
(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)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP MAX UNITS
VCC ⥠1.1V, ISOURCE = 10µA,
RESET asserted, TA ⥠0°C
0.8 x VCC
VCC ⥠1.2V, ISOURCE = 10µA,
RESET asserted
0.8 x VCC
VOH
VCC ⥠1.53V, ISOURCE = 200µA,
RESET asserted
0.8 x VCC
RESET Output Voltage
V
VCC ⥠2.12V, ISOURCE = 500µA,
RESET asserted
0.8 x VCC
VCC ⥠1.71V, ISINK = 500µA,
0.3
RESET deasserted
VOL
VCC ⥠2.38V, ISINK = 1.2mA,
0.3
RESET deasserted
CT Input Current
CT Input Voltage
VIH
VIL
MANUAL RESET INPUT
MR Input Voltage
MR Minimum Pulse Width
MR Glitch Rejection
MR to Reset Delay
MR Pullup Resistance
VIH
VIL
tMPW
tMRD
WATCHDOG TIMER (MAX6864âMAX6869)
WDI Input Voltage
VIH
VIL
WDI Input Current
WDI Pulse Width
tWDI
Watchdog Timeout Period
tWD
CT = GND or VCC
WDI = GND or VCC
(Note 3)
S
L
0.8 x VCC
20
nA
V
0.2 x VCC
0.7 x VCC
V
0.3 x VCC
1
µs
200
ns
250
ns
5
10
20
kâ¦
0.7 x VCC
V
0.3 x VCC
20
nA
150
ns
1.5
3.3
7.75
s
95
209
487
Note 1: Devices are tested at TA = +25°C. Specifications for TA = -40°C to +85°C are guaranteed by design.
Note 2: For the MAX6864âMAX6869, the watchdog period is 1s with tRISE and tFALL < 50ns.
Note 3: Guaranteed by design.
_______________________________________________________________________________________ 3
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