Stable Clock Timing IC DS12C887 24 EDIP With Parallel Interface
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Detailed Product Description
DS12C887 IC RTC CLK/CALENDAR PAR 24EDIP Analog Devices Inc./Maxim IntegratedProduct Details
General DescriptionThe DS12885, DS12887, and DS12C887 real-time clocks (RTCs) are designed to be direct replacements for the DS1285 and DS1287. 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 DS12887 integrates a quartz crystal and lithium energy source into a 24-pin encapsulated DIP package.
Features♦ Drop-In Replacement for IBM AT Computer Clock/Calendar♦ RTC Counts Seconds, Minutes, Hours, Day, Date, Month, and Year with Leap Year Compensation Through 2099 ♦ Binary or BCD Time Representation ♦ 12-Hour or 24-Hour Clock with AM and PM in 12-Hour Mode ♦ Daylight Saving Time Option ♦ Selectable Intel or Motorola Bus Timing ♦ Interfaced with Software as 128 RAM Locations ♦ 14 Bytes of Clock and Control Registers ♦ 114 Bytes of General-Purpose, Battery-Backed RAM (113 Bytes in the DS12C887 and DS12C887A) ♦ RAM Clear Function (DS12885, DS12887A, and DS12C887A) ♦ Interrupt Output with Three Independently Maskable Interrupt Flags ♦ Time-of-Day Alarm Once Per Second to Once Per Day ♦ Periodic Rates from 122μs to 500ms ♦ End-of-Clock Update Cycle Flag ♦ Programmable Square-Wave Output ♦ Automatic Power-Fail Detect and Switch Circuitry ♦ Optional 28-Pin PLCC Surface Mount Package or 32-Pin TQFP (DS12885) ♦ Optional Encapsulated DIP (EDIP) Package with Integrated Crystal and Battery (DS12887, DS12887A, DS12C887, DS12C887A) ♦ Optional Industrial Temperature Range Available ♦ Underwriters Laboratory (UL) Recognized
Specifications
DescriptionsReal Time Clock (RTC) IC Clock/Calendar 113B Parallel 24-DIP Module
(0.600", 15.24mm) |
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| Product Tags: Stable Clock Timing IC Clock Timing IC 24 EDIP DS12C887 |
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