DS1500_11 MAXIM [Maxim Integrated Products], DS1500_11 Datasheet - Page 8

• Manufacturer Part Number: DS1500_11
• Description: Y2K Watchdog RTC with Nonvolatile Control
• Manufacturer: MAXIM [Maxim Integrated Products]

WAKEUP/KICKSTART TIMING
(T
Note: Time intervals shown above are referenced in Wakeup/Kickstart.
Figure 6. Wakeup/Kickstart Timing Diagram
Note 1: Limits at -40°C are not production tested and are guaranteed by design.
Note 2: Voltage referenced to ground.
Note 3: Outputs are open.
Note 4: The IRQ, PWR, and RST outputs are open drain.
Note 5: Value for voltage and currents is from the V
Note 6: If V
Note 7: Value for voltage and currents is from the V
Note 8: I
Note 9: V
Note 10: These parameters are sampled with a 5pF load and are not 100% tested.
Note 11: Typical values are at +25°C, nominal (active) supply, unless otherwise noted.
Note 12: If the oscillator is not enabled, the startup time of the oscillator after V
Kickstart-Input Pulse Width
Wakeup/Kickstart Power-On Timeout
A
= +25°C) (Figure 6)
is greater than V
of V
BAT1
BAT
PF
BAT
and I
or V
is less than V
or V
BAUX
BAT2
PARAMETER
BAUX
current. Using a 32.768kHz crystal connected to X1 and X2.
are specified with V
.
BAT
BAT
and V
and V
BAUX
BAUX
, the device power is switched from V
, the device power is switched from V
CCO
unconnected and do not include any RAM current.
CCI
BAT
input pin to the V
or V
SYMBOL
BAUX
t
t
KSPW
POTO
input pin to the V
8 of 20
CCO
CC
CONDITIONS
(Note 11)
pin.
CC
to the greater of V
CCI
to the greater of V
CCO
is applied is added to the wakeup/kickstart timeout.
pin.
BAT
MIN
BAT
or V
2
2
or V
BAUX
BAUX
when V
when V
TYP
CC
CC
drops below the greater
drops below V
MAX
UNITS
PF
µs
. If V
s
PF