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DataFlash™ SPI Memory

Most Efficient Flash Memory for Data Logging

  • Byte / Page Programming
  • Fast Page Erase
  • Low Power Modes
  • Power Fail Protection
  • Data Integrity & Security

DataFlash’s advanced dual SRAM buffer architecture makes it the most efficient memory for data logging. It also incorporates a suite of advanced features that save system power, reduce processor overhead, simplify software development, and provide comprehensive data security and integrity options.

Features

Wide Vcc

Dual SRAM buffer

Low power operation extends system battery life

Byte-write provides Serial EEPROM functionality in a Serial NOR Flash device

Ultra-deep power down operates at >400nA

Extended Vcc operation allows the system memory to operate over the entire voltage range

Comprehensive security and unique ID features protect the device from outside tampering

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DataFlash™ SPI Memory

Density Product / Datasheet Speed Vcc range Interface Details Status Samples
               
64Mbit AT45DB641E 104MHz 1.7V-3.6V SPI   ● Active Order Samples
32Mbit AT45DB321E 104MHz 2.3V-3.6V SPI   ● Active Order Samples
32Mbit AT45DQ321 70-104MHz 2.3V-3.6V SPI, Dual, Quad I/O   ● Active Order Samples
32Mbit AT45DQ321 (105°C) 40-104MHz 2.3V-3.6V SPI, Dual, Quad I/O   ● Active Order Samples
16Mbit AT45DB161E 104MHz 2.3V-3.6V SPI   ● Active Order Samples
16Mbit AT45DQ161 100MHz 2.3V-3.6V SPI, Dual, Quad I/O   ● Active Order Samples
8Mbit AT45DB081E 133MHz 1.7V-3.6V SPI   ● Active Order Samples
4Mbit AT45DB041E 104MHz 1.65V-3.6V SPI   ● Active Order Samples
4Mbit AT45DB041E (125°C) 85MHz 1.65V-3.6V SPI   ● Active Order Samples
2Mbit AT45DB021E 70MHz 1.65V-3.6V SPI   ● Active Order Samples
AT45DB641E details
Ordering Code Package
AT45DB641E-SHN-B SOIC 208MIL 8S2 8
AT45DB641E-SHN-T SOIC 208MIL 8S2 8
AT45DB641E-MHN-Y UDFN 8MA1 8 - 5x6
AT45DB641E-MHN-T UDFN 8MA1 8 - 5x6
AT45DB641E-MWHN-Y MLF VDFN 8MW 8 - 6x8
AT45DB641E-MWHN-T MLF VDFN 8MW 8 - 6x8
AT45DB641E-CCUN-T UBGA 9CC19 - 6x6
AT45DB641E-UUN-T WLCSP - Contact Adesto
AT45DB641E-SHN2B-T SOIC 208MIL 8S2 8
AT45DB641E-MHN2B-T UDFN 8MA1 8 - 5x6
AT45DB641E-MWHN2B-T MLF VDFN 8MW 8 - 6x8
AT45DB641E-CCUN2B-T UBGA 9CC19 - 6x6
AT45DB641E-UUN2B-T WLCSP - Contact Adesto
AT45DB321E details
Ordering Code Package
AT45DB321E-CCUF-T UBGA 9CC19 - 6x6
AT45DB321E-MHF-T UDFN 8MA1 8 - 5x6
AT45DB321E-MHF-Y UDFN 8MA1 8 - 5x6
AT45DB321E-MWHF-T MLF VDFN 8MW 8 - 6x8
AT45DB321E-MWHF-Y MLF VDFN 8MW 8 - 6x8
AT45DB321E-MWHF2B-T MLF VDFN 8MW 8 - 6x8
AT45DB321E-MHF2B-T UDFN 8MA1 8 - 5x6
AT45DB321E-SHF-B SOIC 208MIL 8S2 8
AT45DB321E-SHF-T SOIC 208MIL 8S2 8
AT45DB321E-SHF2B-T SOIC 208MIL 8S2 8
AT45DB321E-SHFHA-T SOIC 208MIL 8S2 8
AT45DB321E-SHFHC-T SOIC 208MIL 8S2 8
AT45DQ321 details
Ordering Code Package
AT45DQ321-SHF-B SOIC 208MIL 8S2 8
AT45DQ321-SHF-T SOIC 208MIL 8S2 8
AT45DQ321-MHF-Y UDFN 8MA1 8 - 5x6
AT45DQ321-MHF-T UDFN 8MA1 8 - 5x6
AT45DQ321-MWHF-T MLF VDFN 8MW 8 - 6x8
AT45DQ321-MWHF-Y MLF VDFN 8MW 8 - 6x8
AT45DQ321-CCUF-T UBGA 9CC19 - 6x6
AT45DQ321-SHF2B-T SOIC 208MIL 8S2 8
AT45DQ321-MWHF2B-T MLF VDFN 8MW 8 - 6x8
AT45DQ321-MHF2B-T UDFN 8MA1 8 - 5x6
AT45DB161E details
Ordering Code Package
AT45DB161E-MHD-Y UDFN 8MA1 8 - 5x6
AT45DB161E-MHD-T UDFN 8MA1 8 - 5x6
AT45DB161E-MHD2B-T UDFN 8MA1 8 - 5x6
AT45DB161E-MHF-T UDFN 8MA1 8 - 5x6
AT45DB161E-MHF2B-T UDFN 8MA1 8 - 5x6
AT45DB161E-MHF-Y UDFN 8MA1 8 - 5x6
AT45DB161E-SHD-B SOIC 208MIL 8S2 8
AT45DB161E-SHD-T SOIC 208MIL 8S2 8
AT45DB161E-SHD2B-T SOIC 208MIL 8S2 8
AT45DB161E-SHF-T SOIC 208MIL 8S2 8
AT45DB161E-SHF2B-T SOIC 208MIL 8S2 8
AT45DB161E-SSHD-B SOIC 150MIL 8S1 8
AT45DB161E-SSHD-T SOIC 150MIL 8S1 8
AT45DB161E-SSHD2B-T SOIC 150MIL 8S1 8
AT45DB161E-SHF-B SOIC 208MIL 8S2 8
AT45DB161E-SSHF-B SOIC 150MIL 8S1 8
AT45DB161E-SSHF-T SOIC 150MIL 8S1 8
AT45DB161E-SSHF2B-T SOIC 150MIL 8S1 8
AT45DB161E-UUF2B-T 11-WLCSP
AT45DB161E-UUF-T 11-WLCSP
AT45DQ161 details
Ordering Code Package
AT45DQ161-SHF-B SOIC 208MIL 8S2 8
AT45DQ161-SHF-T SOIC 208MIL 8S2 8
AT45DQ161-MHF-Y UDFN 8MA1 8 - 5x6
AT45DQ161-MHF-T UDFN 8MA1 8 - 5x6
AT45DQ161-SSHF-T SOIC 150MIL 8S1 8
AT45DQ161-SSHF-B SOIC 150MIL 8S1 8
AT45DQ161-CCUF-T UBGA 9CC19 - 6x6
AT45DQ161-SHF2B-T SOIC 208MIL 8S2 8
AT45DQ161-SSHF2B-T SOIC 150MIL 8S1 8
AT45DQ161-MHF2B-T UDFN 8MA1 8 - 5x6
AT45DQ161-SHFHB-T SOIC 208MIL 8S2 8
AT45DQ161-SSHFHB-T SOIC 150MIL 8S1 8
AT45DQ161-SHFHD-T SOIC 208MIL 8S2 8
AT45DQ161-SSHFHD-T SOIC 150MIL 8S1 8
AT45DB081E details
Ordering Code Package
AT45DB081E-SSHN-T SOIC 150MIL 8S1 8
AT45DB081E-SHN-B SOIC 208MIL 8S2 8
AT45DB081E-SHN-T SOIC 208MIL 8S2 8
AT45DB081E-MHN-Y UDFN 8MA1 8 - 5x6
AT45DB081E-MHN-T UDFN 8MA1 8 - 5x6
AT45DB081E-SSHN2B-T SOIC 150MIL 8S1 8
AT45DB081E-SHN2B-T SOIC 208MIL 8S2 8
AT45DB081E-MHN2B-T UDFN 8MA1 8 - 5x6
AT45DB081E-SSHN-B SOIC 150MIL 8S1 8
AT45DB081E-UUN-T 8-WLCSP
AT45DB081E-DWF See Wafer-Die Solution Menu
AT45DB041E details
Ordering Code Package
AT45DB041E-SSHN-T SOIC 150MIL 8S1 8
AT45DB041E-SHN-B SOIC 208MIL 8S2 8
AT45DB041E-SHN-T SOIC 208MIL 8S2 8
AT45DB041E-MHN-Y UDFN 8MA1 8 - 5x6
AT45DB041E-MHN-T UDFN 8MA1 8 - 5x6
AT45DB041E-SSHN2B-T SOIC 150MIL 8S1 8
AT45DB041E-SHN2B-T SOIC 208MIL 8S2 8
AT45DB041E-MHN2B-T UDFN 8MA1 8 - 5x6
AT45DB041E-SSHN-B SOIC 150MIL 8S1 8
AT45DB041E-UUN-T 8-WLCSP
AT45DB041E-DWF See Wafer-Die Solution Menu
AT45DB021E details
Ordering Code Package
AT45DB021E-MHN-T UDFN 8MA1 8 - 5x6
AT45DB021E-MHN-Y UDFN 8MA1 8 - 5x6
AT45DB021E-MHN2B-T UDFN 8MA1 8 - 5x6
AT45DB021E-SHN-B SOIC 208MIL 8S2 8
AT45DB021E-SHN-T SOIC 208MIL 8S2 8
AT45DB021E-SHN2B-T SOIC 208MIL 8S2 8
AT45DB021E-SSHN-B SOIC 150MIL 8S1 8
AT45DB021E-SSHN-T SOIC 150MIL 8S1 8
AT45DB021E-SSHN2B-T SOIC 150MIL 8S1 8
AT45DB021E-UUN-T 8-WLCSP
AT45DB021E-DWF See Wafer-Die Solution Menu
AT45DQ321 (105°C) details
Ordering Code Package
AT45DQ321-SHFHB-B SOIC 208MIL 8S2 8
AT45DQ321-SHFHB-T SOIC 208MIL 8S2 8
AT45DB041E (125°C) details
Ordering Code Package
AT45DB041E-SHNHT-B SOIC 208MIL 8S2 8
AT45DB041E-SHNHT-T SOIC 208MIL 8S2 8
AT45DB041E-SSHNHT-B SOIC 105MIL 8S1 8
AT45DB041E-SSHN-T SOIC 105MIL 8S1 8

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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Product Briefs and Summaries
Name Date Version
DataFlash Products Overview (491.34 KB)
Application notes
Name Date Version
AN005 Rev A Active Interrupt Proven to Lower Power Consumption (873.64 KB)
AN111: Implementing Ultra Deep Power Down Mode in AT25xx Series and AT45xx Series (339.24 KB)
AN500:NOR Flash Memory Erase Operation (807.16 KB)
AN501: Power-Up/Down Considerations in NOR Flash (588.11 KB) 01/05/2021 A1
AVR116: Wear Leveling on DataFlash (628.62 KB)
AVR335: Digital Sound Recorder with tinyAVR or megaAVR and DataFlash (149.29 KB)
AVR335: Digital Sound Recorder with tinyAVR or megaAVR and DataFlash – Zip (12.73 KB)
DataFlash Binary Page Size (129.17 KB)
DataFlash: SRAM Buffer Read Feature Description (451.4 KB)
DataFlash® and Serial Flash BGA Package (619.13 KB)
Saving Data During a Power Failure Using the DataFlash® E-Series Family (468.27 KB) 11/12/2020 A0
VCC Power Off, Brownout, and Power On with the DataFlash Family (270.42 KB)
Layout Guides
Name Date Version
PCB Design and Layout Considerations for Adesto Memory Devices (313.89 KB)
Software Resources
Name Date Version
Simulation Tools(29.68 KB)
User guides and manuals
Name Date Version
Conversion Guide Micron EOL M45PE Products (276.43 KB)
DataFlash Verilog Model User Manual (50.32 KB)
DataFlash VHDL Model User Manual (35.26 KB)
Dialog Flash Memory for Dialog SoC Products (184.91 KB) 23/07/2021
RoHS and Reach
Name Date Version
Certifications and Statements (29.68 KB)
General
Name Date Version
Adesto Serial Flash Power Saving Features and Concepts (1.22 MB)
DataFlash Memory Products Selector (246.51 KB)
DataFlash®-L: Page Erase Serial Flash Product Overview (222.93 KB)
Longevity Program (29.68 KB)
Product Change Notifications (29.68 KB)

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Video thumbnail, click to open and play

Small Page Erase

Video thumbnail, click to open and play

NOR Flash System Enhancing Flexible RW SRAM Buffer

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Back to results
Posts tagged: AT25SF/SL
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2 months ago

AT25SF081 AC characteristics for 2.7V to 3.6V

Posted by as_36 1 reply

2 months ago

AT25SL128A Data Corruption on Write

Posted by MortenSchmidt 3 replies

1 month ago

AT25SF128A-SHB-T Problems when reflashing

Posted by GianLuca Trombin 4 replies

2 weeks ago

AT25SF321 clock problem

Posted by nsanfa 4 replies