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FM3808,pdf datasheet
消耗积分:2 |
格式:rar |
大小:322 |
2009-07-13
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The FM3808 combines a 256Kb FRAM array with a
real-time clock and a system supervisor function. An
external 32.768 kHz crystal drives the timekeeping
function. It maintains time and date settings in the
absence of system power through the use of a backup
battery power source. Data in the memory array does
not depend on the backup source, it remains
nonvolatile in FRAM. In addition to timekeeping, the
FM3808 includes a system supervisor to manage low
VDD power conditions and a watchdog timer function.A programmable interrupt output pin allows the user to select the supervisor functions and the polarity of the signal.
real-time clock and a system supervisor function. An
external 32.768 kHz crystal drives the timekeeping
function. It maintains time and date settings in the
absence of system power through the use of a backup
battery power source. Data in the memory array does
not depend on the backup source, it remains
nonvolatile in FRAM. In addition to timekeeping, the
FM3808 includes a system supervisor to manage low
VDD power conditions and a watchdog timer function.A programmable interrupt output pin allows the user to select the supervisor functions and the polarity of the signal.
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