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Micron M25P M25PE M45PE Replacements

Micron Replacements

We offer highly compatible solutions for the designer, component engineer and sourcing teams that are rapidly moving to replace Micron NOR Flash products and avoid potential price instability and supply shortages that could impact their production.

DATAFLASH (AT45 Series), DATAFLASH-L (AT25PE Series) and FUSION (AT25 Series) families offer price and long-life supply stability with exact-match pin out and performance to the Micron selection.

Features

Highly-compatible, including exact-match replacements to Micron EOL products

Included in Dialog's memory longevity program to ensure supply security and stability

Superior product performance and command sets

Micron M25PE Replacements

Density Product / Datasheet Speed Vcc range Interface Details Status Samples
               
16Mbit AT25PE16 85MHz 2.3V-3.6V SPI   ● Active Order Samples
8Mbit AT25PE80 85MHz 1.7V-3.6V SPI   ● Active Order Samples
4Mbit AT25PE40 85MHz 1.65V-3.6V SPI   ● Active Order Samples
2Mbit AT25PE20 85MHz 1.65V-3.6V SPI   ● Active Order Samples
AT25PE16 details
Ordering Code Package
AT25PE16-SSHN-B SOIC 150MIL 8S1 8
AT25PE16-SSHN-T SOIC 150MIL 8S1 8
AT25PE16-SHN-B SOIC 208MIL 8S2 8
AT25PE16-SHN-T SOIC 208MIL 8S2 8
AT25PE16-MHN-Y UDFN 8MA1 8 - 5x6
AT25PE16-MHN-T UDFN 8MA1 8 - 5x6
AT25PE20 details
Ordering Code Package
AT25PE20-SSHN-B SOIC 150MIL 8S1 8
AT25PE20-SSHN-T SOIC 150MIL 8S1 8
AT25PE20-SHN-B SOIC 208MIL 8S2 8
AT25PE20-SHN-T SOIC 208MIL 8S2 8
AT25PE20-MHN-Y UDFN 8MA1 8 - 5x6
AT25PE20-MHN-T UDFN 8MA1 8 - 5x6
AT25PE40 details
Ordering Code Package
AT25PE40-SSHN-B SOIC 150MIL 8S1 8
AT25PE40-SSHN-T SOIC 150MIL 8S1 8
AT25PE40-SHN-B SOIC 208MIL 8S2 8
AT25PE40-SHN-T SOIC 208MIL 8S2 8
AT25PE40-MHN-Y UDFN 8MA1 8 - 5x6
AT25PE40-MHN-T UDFN 8MA1 8 - 5x6
AT25PE80 details
Ordering Code Package
AT25PE80-SSHN-B SOIC 150MIL 8S1 8
AT25PE80-SSHN-T SOIC 150MIL 8S1 8
AT25PE80-SHN-B SOIC 208MIL 8S2 8
AT25PE80-SHN-T SOIC 208MIL 8S2 8
AT25PE80-MHN-Y UDFN 8MA1 8 - 5x6
AT25PE80-MHN-T UDFN 8MA1 8 - 5x6

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Memory

5 months ago

AT25SL321 Simulation Model Clarification

Posted by aeva 15 points 2 replies
0 upvotes

I would like to seek clarification with the reset behaviour of the Verilog simulation model provided for the AT25SL321 SPI Flash device please.

https://www.dialog-semiconductor.com/sites/default/files/verilog_at25sl321.zip

The behaviour I wish to check is that of QPI Mode upon device reset.  The datasheet states "..after software reset using the Reset (99h) instruction, the default state of the device is Standard/Dual/Quad SPI mode".

This, we interpret to mean that QPI mode is disabled by a software reset.  The Quad Enable bit in Status Register-2 is non-volatile, so this would remain set but the Flash should be accessed with SPI instructions immediately after Reset.

The Verilog model has different behaviour (RTL snippet attached).  Here, the QPI mode is retained after software reset because the Status Register-2 Quad Enable (QE) bit sets QPI_Mode directly in the reset procedure.  For this to match the interpreted behaviour (and that seen in other Dialog memory devices) QPI_Mode should be set to 0 in the RST_Event process instead.

Is the model wrong or did I interpret the datasheet incorrectly?

Thanks

Andrew

Attachment Size
321_RST_Event.PNG 40.45 KB

5 months ago

gordonmacnee 225 points

Hello Andrew,

The datasheet describes the correct operation of the AT25SL321 device. We are working with product engineering to correct and then reissue the verilog simulation files.

4 months ago

Thanks Gordon

Is there any progress please?