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DS1245AB Datasheet 1024k Nonvolatile Sram

Manufacturer: Maxim Integrated (now Analog Devices)

Overview: 19-5638; Rev 11/10 www.maxim-ic.com.

This datasheet includes multiple variants, all published together in a single manufacturer document.

General Description

A0 - A16 - Address Inputs DQ0 - DQ7 - Data In/Data Out CE - Chip Enable WE - Write Enable OE - Output Enable VCC GND - Power (+5V) - Ground NC - No Connect 1 of 10 DS1245Y/AB DESCRIPTION The DS1245 1024k Nonvolatile SRAMs are1,048,576-bit, fully static, nonvolatile SRAMs organized as 131,072 words by 8 bits.

Each complete NV SRAM has a self-contained lithium energy source and control circuitry which constantly monitors VCC for an out-of-tolerance condition.

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Key Features

  • 10 years minimum data retention in the absence of external power.
  • Data is automatically protected during power loss.
  • Replaces 128k x 8 volatile static RAM, EEPROM or Flash memory.
  • Unlimited write cycles.
  • Low-power CMOS.
  • Read and write access times of 70 ns.
  • Lithium energy source is electrically disconnected to retain freshness until power is applied for the first time.
  • Full ±10% VCC operating range (DS1245Y).
  • Optional ±5% VCC operating range (DS1245A.

More Datasheets from Maxim Integrated (now Analog Devices)

Part Number Description
DS1245W 3.3V 1024k Nonvolatile SRAM
DS1245Y 1024k Nonvolatile SRAM
DS1243Y 64K NV SRAM
DS1244 256K NV SRAM
DS1244P 256K NV SRAM
DS1248 1024K NV SRAM
DS1248P 1024K NV SRAM
DS1249AB 2048k Nonvolatile SRAM
DS1249Y 2048k Nonvolatile SRAM
DS1210 Nonvolatile Controller

DS1245AB Distributor