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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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1 month ago


Posted by Matteo Cardani 15 points 2 replies


we are having trouble with memories AT45DB021E.

In fact it seems that recently some new flash stopped working properly after very few erase and program cycle.

Before we had no issues on this matter.

After some analysis it seems that all flashes which are not working have the following manufacturer and device id id number:

Manufacturer ID = 0x1F

Device ID (Byte 1) = 0x23

Device ID (Byte 2) = 0x03

The ones working, insted has:

Device ID (Byte 2) = 0x00


I cannot find any information about that specific product variant. May you provide me some specific info on what changed and if there are known issues of flash with product variant 3?


Thank you,


1 month ago

gordonmacnee 185 points

Hello Matteo,

Our manufacturer's ID should be 1F 23 00 01 00 as per the datasheet. I do not know of ANY variants we have released that have 03 as Byte 2. 

Would you let us know where you bought these devices from and also send some photos of the top and bottom of the device so that we can read the markings (this will give us date and batch codes)? This will allow us to confirm that they are not counterfeit. 

If you need to keep this info confidential then send it to my email

Would you also give us an indication of what is the problem with the 'not working' parts?


1 month ago

Matteo Cardani 15 points

Hello Gordon,

thank you for your fast answer. I'm forwarding your reply to our quality department to investigate from which batch these flashes come from.

Thank you again for your answer