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DS1243Y-120+

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

MAXIM INTEGRATED PRODUCTS DS1243Y-120+
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Manufacturer Part No:
DS1243Y-120+
Order Code:
2515439
Technical Datasheet:
DS1243Y-120+   Datasheet
See all Technical Docs

Product Overview

The DS1243Y-120+ is a 64K NV SRAM with Phantom clock in 28 pin EDIP package. The 64K NV SRAM with Phantom clock is a fully static non-volatile RAM (organized as 8192 words by 8 bits) with a built-in real time clock. The DS1243Y has a self-contained lithium energy source and control circuitry which constantly monitors VCC for an out of tolerance condition. When such a condition occurs, lithium energy source is automatically switched on and write protection is unconditionally enabled to prevent corrupted data in both the memory and real time clock. The Phantom clock provides timekeeping information for hundredths of seconds, seconds, minutes, hours, day, date, month and year information. The date at the end of the month is automatically adjusted for months with fewer than 31 days, including correction for leap years. The Phantom clock operates in either 24hour or 12hour format with an AM/PM indicator.
  • Supply voltage range is 4.5V to 5.5V
  • Operating temperature range from 0°C to 70°C
  • 8K x 8 NV SRAM directly replaces volatile static RAM or EEPROM
  • Read cycle time and access time is 120ns
  • Embedded lithium energy cell maintains calendar operation and retains RAM data
  • Watch function is transparent to RAM operation
  • Automatic leap year compensation valid up to 2100
  • Over 10 years of data retention in the absence of power
  • Lithium energy source is disconnected to retain freshness until power is applied for the first time
  • 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:hh

:
RTC

:
4.5V

:
5.5V

:
EDIP

:
28Pins

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Parallel

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0°C

:
70°C

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-

:
-

:
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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