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FM4005 pdf datasheet (Integrat
消耗积分:2 |
格式:rar |
大小:666 |
2008-09-23
贾永世
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The FM4005 is an integrated device that includes the
most commonly needed functions for processorbased
systems. Major features include real-time
clock, low-VDD reset, watchdog timer, battery-backed
event counter, lockable 64-bit serial number area, and
general purpose comparator that can be used for a
power-fail (NMI) interrupt or other purpose. The
family operates from 2.7 to 5.5V.
The real-time clock (RTC) provides time and date
information in BCD format. It can be permanently
powered from external backup voltage source, either
a battery or a capacitor. The timekeeper uses a
common external 32.768 kHz crystal and provides a
calibration mode that allows software adjustment of
timekeeping accuracy.
most commonly needed functions for processorbased
systems. Major features include real-time
clock, low-VDD reset, watchdog timer, battery-backed
event counter, lockable 64-bit serial number area, and
general purpose comparator that can be used for a
power-fail (NMI) interrupt or other purpose. The
family operates from 2.7 to 5.5V.
The real-time clock (RTC) provides time and date
information in BCD format. It can be permanently
powered from external backup voltage source, either
a battery or a capacitor. The timekeeper uses a
common external 32.768 kHz crystal and provides a
calibration mode that allows software adjustment of
timekeeping accuracy.
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