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Flash Memory System Enhancement Features

Save energy, reduce CPU overhead and preserve data integrity

System Enhancement Features

  • Small Page Erase
  • Active Interrupt
  • Read Modify Write
  • Flexible Read / Write Buffer

Typical NOR Flash may be suitable for the simple bootloader and execute-in-place use cases, but it can end up consuming more energy when used for cases that demand small and frequent updates to complex system files.

Dialog memory solutions use the same architecture as typical NOR Flash and go further to include features to reduce energy consumption, simplify system software, reduce CPU overhead during the memory update process.

See the product selector table to see all Dialog Flash products that offer these system-enhancing features.

Features

Select Dialog Flash products include these features designed to enhance system performance

  • Small Page Erase
  • Active Interrupt
  • Read Modify Write
  • Flexible Read / Write buffer

See our Tech Notes in the resources tab for a full description of these features

Benefits

Small Page Erase

  • Lower energy consumption
  • Simplify software
  • Reduce CPU overhead

Active Interrupt

  • Allow the CPU to multi-task

Read Modify Write

  • Automaically handles memory updates without additional MCU interaction

Flexible Read / Write buffer

  • Fast save on power fail
  • Reduce flash wear
  • Lower system power

Applications

These enhancement features are designed for efficient and fast performance in systems that store and update configuration settings or log data from sensor input.

System Configuration

  • Reference tables
  • User Interface settings
  • Device discoverable parameters
  • Communications stacks

Data Logging

  • Frequent updates
  • Small size (Bytes to kBytes) updates
Family Density Product / Datasheet Vcc range Interface Status Samples Small page Erase Read Modify Write Active Interrupt Flexible Read/Write Buffer
                     
DataFlash 64Mbit AT45DB641E 1.7V - 3.6V SPI ● Active Order Samples  
DataFlash 32Mbit AT45DB321E 2.3V - 3.6V SPI ● Active Order Samples  
Fusion 32Mbit AT25XE321D 1.65V - 3.6V SPI, Dual, Quad I/O,XiP Support ● Active Order Samples
Fusion 16Mbit AT25XE161D 1.65V - 3.6V SPI, Dual, Quad I/O,XiP Support ● Active Order Samples
DataFlash 16Mbit AT45DB161E 2.3V - 3.6V SPI ● Active Order Samples  
Fusion 8Mbit AT25XE081D 1.65V - 3.6V SPI, Dual, Quad I/O,XiP Support ● Active Order Samples
DataFlash 8Mbit AT45DB081E 1.7V - 3.6V SPI ● Active Order Samples  
Fusion 4Mbit AT25DF041B 1.65V - 3.6V SPI Dual Read ● Active Order Samples      
Fusion 4Mbit AT25XE041D 1.65V - 3.6V SPI, Dual, Quad I/O,XiP Support ● Active Order Samples
DataFlash 4Mbit AT45DB041E 1.65V - 3.6V SPI ● Active Order Samples  
Fusion 2Mbit AT25DF021A 1.65V - 3.6V SPI Dual Read ● Active Order Samples      
DataFlash 2Mbit AT45DB021E 1.65V - 3.6V SPI ● Active Order Samples  
Fusion 1Mbit AT25DF011 1.65V - 3.6V SPI Dual Read ● Active Order Samples      
Fusion 512Kbit AT25DF512C 1.65V - 3.6V SPI Dual Read ● Active Order Samples      
Fusion 256Kbit AT25DF256 1.65V - 3.6V SPI Dual Read ● Active Order Samples      
User guides and manuals
Name Date Version
Dialog Flash Memory for Dialog SoC Products (184.91 KB) 23/07/2021
Video thumbnail, click to open and play

NOR Flash System Enhancing Flexible RW SRAM Buffer

Video thumbnail, click to open and play

Small Page Erase