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DS1486

Dallas Semiconductor
Part Number DS1486
Manufacturer Dallas Semiconductor
Description RAMified Watchdog Timekeeper
Published Sep 2, 2008
Detailed Description DS1486/DS1486P RAMified Watchdog Timekeeper www.maxim-ic.com FEATURES 128 kbytes of user NV RAM Integrated NV SRAM, rea...
Datasheet PDF File DS1486 PDF File

DS1486
DS1486

Overview
DS1486/DS1486P RAMified Watchdog Timekeeper www.
maxim-ic.
com FEATURES 128 kbytes of user NV RAM Integrated NV SRAM, real-time clock, crystal, power-fail control circuit and lithium energy source § Totally nonvolatile with over 10 years of operation in the absence of power § Watchdog timer restarts an out-of-control processor § Alarm function schedules real-time related www.
DataSheet4U.
com activities such as system wakeup § Programmable interrupts and square wave output § All registers are individually addressable via the address and data bus § Interrupt signals active in power-down mode § § PIN ASSIGNMENT INTB (INTB) A16 A14 A12 A7 A6 A5 A4 A3 A2 A1 A0 DQ0 DQ1 DQ2 GND 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 VCC A15 INTA/SQW WE A13 A8 A9 A11 OE A10 CE DQ7 DQ6 DQ5 DQ4 DQ3 ORDERING INFORMATION DS1486 XXX (32–pin DIP module) –150 150 ns access –120 120 ns access 34-pin PowerCap Module Board –150 150 ns access –120 120 ns access DS1486 128k...


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