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MAXIM INTEGRATED / ANALOG DEVICES DS1243Y120 Non-volatile SRAM

The DS1243Y-120+ is a 64K non-volatile SRAM with an integrated real-time clock, housed in a 28-pin EDIP package. It provides static memory organized as 8,192 words by 8 bits, with a built-in Phantom clock that tracks time in hour, minute, second, day, date, month, and year formats, including automatic leap year correction up to 2100. The device features a self-contained lithium energy source that maintains data and clock operation during power outages, switching on automatically when VCC is out of tolerance to prevent data corruption. It operates with a supply voltage of 4.5V to 5.5V, within a temperature range of 0°C to 70°C, and has typical access and read cycle times of 120ns. The embedded lithium cell guarantees over 10 years of data retention without external power, making it ideal for clock, timing, and real-time data applications. UL recognition ensures quality and reliability.

Authorized Distributors
Source:Newark
Part No:DS1243Y-120+
Stock:129
Inv Date:06-05-2026
Price: Unit price: $47.82
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Source:DigiKey
Part No:DS1243Y-120+
Stock:156
Inv Date:06-05-2026
Price: Unit price: $47.02
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Part No:DS1243Y-120+
Stock:0
Inv Date:06-06-2026
Price: Unit price: $46.43
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Part No:DS1243Y-120
Stock:0
Inv Date:06-06-2026
Price: N/A
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Part No:DS1243Y-120+
Stock:0
Inv Date:06-05-2026
Price: Unit price: $24.4
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MAXIM INTEGRATED / ANALOG DEVICES DS1243Y120 Non-volatile SRAM Specifications:

  • Memory Organization: 8,192 words by 8 bits
  • Package: 28-pin EDIP
  • Operating Voltage: 4.5V to 5.5V
  • Temperature Range: 0°C to +70°C
  • Access Time: 120ns
  • Cycle Time: 120ns
  • Data Retention: Over 10 years without power
  • Real-Time Clock: Tracks hours, minutes, seconds, day, date, month, year
  • Leap Year Correction: Automatic up to 2100
  • Power Consumption: Standby current 5-10mA, active current 85mA
  • Memory Type: Static RAM with non-volatile backup
  • UL Recognized: Yes
  • Lithium Energy Source: Self-contained, switches on when VCC is out of tolerance

Buy the Buy Maxim DS1243Y120+ Non-Volatile SRAM with Real-Time Clock Online

Purchase the Maxim DS1243Y120+ non-volatile SRAM with integrated real-time clock online today. This reliable memory device offers 8,192 words by 8 bits in a 28-pin EDIP package, featuring a built-in Phantom clock that automatically corrects for leap years up to 2100. It operates within 4.5V to 5.5V, with a typical access time of 120ns, and provides over 10 years of data retention without external power thanks to its lithium backup. Perfect for timing applications, it is UL recognized and ensures robust performance in industrial and embedded systems.

Order your Maxim DS1243Y120+ for reliable timekeeping and data retention today and ensure your projects benefit from precise clock functionality and long-term data stability.

Frequently Asked Questions

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You can download the DS1243Y120 datasheet or visit the MAXIM INTEGRATED / ANALOG DEVICES website for support.

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