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Description
RAMified Watchdog Timekeeper
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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 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
DESCRIPTION
The DS1486 is a nonvolatile Static RAM with a full function Real-time clock (RTC), alarm, watchdog timer, and interval timer which are all accessible in a bytewide format.The DS1486 contains a lithium energy source and a quartz crystal which eliminate the need for any external circuitry. Data contained within 128K by 8-bit memory and the timekeeping registers can be read or written in the same manner as bytewide static RAM. The timekeeping registers are located in the first 14 bytes of memory space. Data is maintained in the RAMified Timekeeper by intelligent control circuitry which detects the status of VCC and write-protects memory when VCC is out of tolerance. The 1lithium energy source can maintain data andreal time for over 10 years in the absence of VCC. Timekeeper information includes hundredths of seconds, seconds, minutes, hours, day, date,month,and year. The date at the end of the month is automatically adjusted for months with less than 31 days, including correction for leap year. The RAMified Timekeeper operates in either 24-hour or 12-hour format with an AMPM indicator. The watchdog timer provides alarm interrupts and interval timing between 0.01 seconds and 99.99 seconds. The real time alarm provides for preset times of up to one week. Interrupts for both watchdog and RTC will operate when system is powered down.Either can provide system "wake-up"signals.
Preview of the first 3 pages of the data sheet
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10000 buyer reviews from United States
Amanda Davis
Length of registration:7 years
The DS1486-120 integrated circuit is a great choice for any project. It is reliable and easy to use, and it has a wide range of features that make it a great choice for any application. The circuit is well-designed and has a low power consumption, making it a great choice for battery-powered projects. It is also very affordable, making it a great choice for budget-conscious projects. Overall, the
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03/17/2023
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All UTSOURCE purchases have a 60 days money back return policy, plus a 90 days UTSOURCE warranty against any manufacturing defects.This warranty shall not apply to any item where defects have been caused by improper customer assembly, failure by customer to follow instructions, product modification, negligent or improper operation.
DS1486-120
DS1486-120 has several brands around the world that may have alternate names for DS1486-120 due to regional differences or acquisition. DS1486-120 may also be known as the following names:
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Stock Status: 10000
Minimum: 1
Total Price:
Unit Price:5.34240
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