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DS12885QN+

Alarm RTC IC, Date Time Format (Day/Date/Month/Year hh:mm:ss), Multiplexed, 4.5 V to 5.5 V, PLCC-28

MAXIM INTEGRATED PRODUCTS DS12885QN+
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Manufacturer Part No:
DS12885QN+
Order Code:
2515410
Technical Datasheet:
DS12885QN+   Datasheet
See all Technical Docs

Product Overview

The DS12885QN+ is a real time clock (RTC) in 28 pin PLCC package. This RTC is designed to be direct replacements for the DS1285. The device 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. The date at the end of the month is automatically adjusted for months with fewer than 31 days, including correction for leap years. The device also operate in either 24-hour or 12-hour format with an AM/PM indicator. A precision temperature-compensated circuit monitors the status of VCC. If a primary power failure is detected device automatically switches to a backup supply. A lithium coin-cell battery can be connected to VBAT input pin on IC to maintain time and date operation when primary power is absent. It is used in embedded systems, utility meters and network hubs, bridges and routers.
  • Supply voltage range is 4.5V to 5.5V
  • Operating temperature range from 0°C to 70°C & periodic rates from 122µs to 500ms
  • Drop-in replacement for IBM AT computer clock/calendar, 14 bytes of clock and control registers
  • Counts seconds, minutes, hours, day, date, month and year with leap year compensation through 2099
  • Binary or BCD time representation, daylight saving time option & end of clock update cycle flag
  • Selectable intel or motorola bus timing, interfaced with software as 128 RAM locations
  • Time of day alarm once per second to once per day, RAM clear function
  • Programmable square-wave output
  • UL recognized

Applications

Clock & Timing

Warnings

Market demand for this product has caused an extension in leadtimes. Delivery dates may fluctuate. Product exempt from discounts.

Product Information

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:
Day; Date; Month; Year

:
HH:MM:SS

:
Alarm RTC

:
4.5V

:
5.5V

:
PLCC

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28Pins

:
Multiplexed

:
-40°C

:
85°C

:
-

:
-

:
MSL 1 - Unlimited
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Technical Docs (1)

CAD Downloads

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Terms and Conditions

CAD Models - Notice
CAD Models and drawings are provided to you on a revocable limited licence for your internal use only but remain the property of the manufacturer who retain all intellectual property rights and ownership. They are provided to assist you in decision making and as design guide but are not guaranteed to be error free, accurate or up to date and is not intended to be taken as advice.
Use of these CAD models and other options provided are downloaded and used entirely at your own risk and by continuing you confirm acceptance of the above.

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