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Dialog Improves System Performance

Non-volatile memory (NVM) is a key component at the heart of every system design. It holds critical data, controls how the system boots, and affects overall performance. Choosing the right NVM is key. We’re here to help. Our wide range of NVM products offer an array of features designed to help tune and optimize your system.

Octal xSPI Memory


xSPI (8x SPI)

High bandwidth

Low power

eXecute-in-Place (XiP)



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Dual / Quad SPI Memory


SPI, Dual, Quad

1.8V, 3.0V. Wide VCC

Ultra-low Energy, Low Power

7nA sleep

Battery monitor


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DataFlash SPI Memory

Fast Flexible Robust

Concurrent programming

Easy to use

Power fail protection

Data integrity

Low power modes


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Wafer KGD

Known Good Die program

Up to 125°C operating temperature

All voltage levels

  • 1.8V
  • 3.0V
  • Wide Voltage 1.65V to 3.6V

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Verified Memory for NXP

Low Power and high-speed SPI Flash solutions for NXP i.MX RT MCUs

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Verified Memory for ST Microelectronics

Dialog SPI Flash solutions verified on over 30 STM32 MCUs

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CBRAM Technology

CBRAM is a resistive RAM technology that provides power, speed, and cost benefits over other non-volatile memory technologies. It is well suited for battery powered devices, edge computing, and AI applications.

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2 weeks ago

Detecting #WP pin state on AT25FF321A and AT25SF321B

Posted by uzer 10 points 1 reply

For both the AT25FF321A and AT25SF321B that are configured for  hardware protection with the #WP pin (SRP1,0 = 01) what is the lowest impact way of detecting the state of the #WP pin (ability to write to status registers)?

As most of the R/W status register bits are related to configuring protection then if they are modified to test the ability to write the status registers then any change will need reverting afterwards, leading to a R,W,R,W sequence.



2 weeks ago

gordonmacnee 185 points

Hello Uzer,

Some of our older parts have a flag within the status reg to indicate the state of the /WP pin but the newer parts do not. The RWRW sequence is your best option but write to the VOLATILE registers only. This will be MUCH faster and will not impact the endurance - note also that the endurance of the non-volatile status registers is not guaranteed to be 100k but will typically be between 10k and 20k in most of our devices.