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4096k Nonvolatile SRAM with Battery Monitor

Product Details

Key Features

Simplified Block Diagram

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Key Features

  • 10 years minimum data retention in the absence of external power
  • Data is automatically protected during power loss
  • Power supply monitor resets processor when VCC power loss occurs and holds processor in reset during VCC ramp-up
  • Battery monitor checks remaining capacity daily
  • Read and write access times of 70ns
  • Unlimited write cycle endurance
  • Typical standby current 50µA
  • Upgrade for 512k x 8 SRAM, EEPROM or Flash
  • Lithium battery is electrically disconnected to retain freshness until power is applied for the first time
  • Full ±10% VCC operating range (DS1350Y) or optional ±5% VCC operating range (DS1350AB)
  • Optional industrial temperature range of -40°C to +85°C, designated IND
  • PowerCap Module (PCM) package
    • Directly surface-mountable module
    • Replaceable snap-on PowerCap provides lithium backup battery
    • Standardized pinout for all NV SRAM products
    • Detachment feature on PowerCap allows easy removal using a regular screwdriver

Applications/Uses

Description

The DS1350 4096k Nonvolatile (NV) SRAMs are 4,194,304 bit, fully static, NV SRAMs organized as 524,288 words by 8 bits. Each NV SRAM 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, the lithium energy source is automatically switched on and write protection is unconditionally enabled to prevent data corruption. Additionally, the DS1350 devices have dedicated circuitry for monitoring the status of VCC and the status of the internal lithium battery. DS1350 devices in the PowerCap Module package are directly surface mountable and are normally paired with a DS9034PC PowerCap to form a complete NV SRAM module. The devices can be used in place of 512k x 8 SRAM, EEPROM or Flash components.

Simplified Block Diagram

DS1350AB, DS1350Y: Pin Assignment DS1350AB, DS1350Y: Pin Assignment Zoom icon

Technical Docs

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .