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DS1249W Datasheet 3.3v 2048kb Nonvolatile Sram

Manufacturer: Maxim Integrated (now Analog Devices)

Overview: 19-5633; Rev 11/10 www.maxim-ic.com.

General Description

A0–A17 - Address Inputs DQ0–DQ7 - Data In/Data Out CE - Chip Enable WE - Write Enable OE - Output Enable VCC GND - Power (+3.3V) - Ground NC - No Connect DESCRIPTION The DS1249W 2048kb nonvolatile (NV) SRAMs are 2,097,152-bit, fully static, NV SRAMs organized as 262,144 words by 8 bits.

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

When such a condition occurs, the lithium energy source is automatically switched on and write protection is unconditionally enabled to prevent data corruption.

Key Features

  • 10 years minimum data retention in the absence of external power.
  • Data is automatically protected during power loss.
  • Unlimited write cycles.
  • Low-power CMOS operation.
  • Read and write access times of 100ns.
  • Lithium energy source is electrically disconnected to retain freshness until power is applied for the first time.
  • Optional industrial (IND) temperature range of -40°C to +85°C.
  • JEDEC standard 32-pin DIP package DS1249W 3.3V 2048kb Nonvolatile SRAM PIN.

Similar Datasheet

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Dallas Semiconducotr Logo DS1249W 3.3V 2048kb Nonvolatile SRAM Dallas Semiconducotr
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Maxim Integrated Logo DS1249Y 2048k Nonvolatile SRAM Maxim Integrated

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