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You can set your browser to block or alert you about these cookies, but some parts of the site will not then work. They are usually only set in response to actions made by you which amount to a request for services, such as setting your privacy preferences, logging in or filling in forms. Strictly Necessary Cookies: (Always Active) These cookies are necessary for the website to function and cannot be switched off in our systems. After we finish updating our website, you will be able to set your cookie preferences. Contact with any questions regarding this Sample Site.Īnalog Devices is in the process of updating our website. Please create a new account there if you have never used the site before. The part selected will carry over to your cart on this site once logged in. Selecting the Sample button above will redirect to the third-party ADI Sample Site. Please see the latest communication from our CCO regarding lead times. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. International prices may differ due to local duties, taxes, fees and exchange rates. (*)The 1Ku list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. (**) Displayed Buy Now Price and Price Range is based on small quantity orders. See our Ordering FAQs for answers to questions about online orders, payment options and more. The device is accessed through a multiplexed byte-wide interface, which supports both Intel and Motorola modes. A lithium coin-cell battery can be connected to the V BAT input pin on the DS12885 to maintain time and date operation when primary power is absent. If a primary power failure is detected, the device automatically switches to a backup supply. A precision temperature-compensated circuit monitors the status of V CC. The devices also operate in either 24-hour or 12-hour format with an AM/PM indicator. For all devices, the date at the end of the month is automatically adjusted for months with fewer than 31 days, including correction for leap years. The DS12C887 adds a century byte at address 32h. The DS12887 integrates a quartz crystal and lithium energy source into a 24-pin encapsulated DIP package. The devices provide a real-time clock/calendar, one time-of-day alarm, three maskable interrupts with a common interrupt output, a programmable square wave, and 114 bytes of battery-backed static RAM (113 bytes in the DS12C887 and DS12C887A). The DS12885, DS12887, and DS12C887 real-time clocks (RTCs) are designed to be direct replacements for the DS1285 and DS1287. Optional Industrial Temperature Range Available.
Automatic Power-Fail Detect and Switch Circuitry.Time-of-Day Alarm Once Per Second to Once Per Day.Interrupt Output with Three Independently Maskable Interrupt Flags.114 Bytes of General-Purpose, Battery-Backed RAM (113 Bytes in the DS12C887 and DS12C887A).14 Bytes of Clock and Control Registers.
DALLAS DS12887 REAL TIME CLOCK SOFTWARE
Interfaced with Software as 128 RAM Locations.Selectable Intel or Motorola Bus Timing.12-Hour or 24-Hour Clock with AM and PM in 12-Hour Mode.RTC Counts Seconds, Minutes, Hours, Day, Date, Month, and Year with Leap Year Compensation Through 2099.Drop-In Replacement for IBM AT Computer Clock/Calendar.
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