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DS1231-20 Specifications

Detailed technical information and Application Scenarios

Product Details

PartNumberManufactorQuantityAvailability
DS1231-20DALLAS374Yes

DS1231-20 is a 64k Nonvolatile SRAM manufactured by Dallas Semiconductor (now part of Maxim Integrated).

The DS1231-20 is a 64k Nonvolatile SRAM manufactured by Dallas Semiconductor (now part of Maxim Integrated). Here are its key specifications:

  • Memory Size: 64k (65,536 x 8 bits)
  • Voltage Range: 4.5V to 5.5V
  • Access Time: 150ns
  • Data Retention: Minimum 10 years without power
  • Automatic Power-Fail Chip Deselect: Ensures data protection during power loss
  • Pin-Compatible: Direct replacement for 8k x 8 SRAMs (e.g., 6264) with additional features
  • Packages: Available in 28-pin DIP, SOIC, and other formats
  • Operating Temperature Range: Commercial (0°C to +70°C) and Industrial (-40°C to +85°C)

This device integrates an SRAM with a lithium energy source and control circuitry for nonvolatile data storage.

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