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Renesas Electronics AT45DB321E-MWHF-T — Signal Isolation
Renesas Electronics

AT45DB321E-MWHF-T 32Mbit SPI Flash, 85 MHz, 8-VDFN

MPNAT45DB321E-MWHF-T
End of Life

Adesto / Dialog 32Mbit SPI Serial Flash, 85 MHz clock, 2.3V-3.6V supply, 8-VDFN (6x8) exposed pad, -40°C to 85°C, Tape & Reel.

$4.49Ref. price · indicative, final on quote
AT45DB321E-MWHF-T datasheet
Packaging8-VDFN Exposed Pad
StockContact for availability
MOQ1 pcs
  • 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
  • Date & lot codes on quoteStated per line before you commit; label photos on request.
  • MSL-compliant ESD packingMoisture-sealed bags with indicator cards; reels photo-verified.
  • PayPal buyer protectionPay by T/T, PayPal or Payoneer — card payments covered end to end.

Specifications

AT45DB321E-MWHF-T Technical Specifications
ParameterValue
Memory typeNon-Volatile
Mounting typeSurface Mount
Voltage2.3V ~ 3.6V
Frequency85 MHz
Memory interfaceSPI
Operating temperature-40°C ~ 85°C (TC)
PackageTape & Reel (TR); Cut Tape (CT)
TechnologyFLASH
Memory size32Mbit
Memory formatFLASH
Case8-VDFN Exposed Pad
Memory organization528 Bytes x 8192 pages
Write cycle time - word, page8µs, 4ms

Product details

32 Mbit SPI flash for data-logging and firmware storage

The AT45DB321E-MWHF-T is a 32 Mbit serial flash memory that communicates over an SPI interface at up to 85 MHz. It is organized as 8192 pages of 528 bytes each.

Industrial temperature and write endurance

Rated for -40°C to 85°C, this part handles outdoor telecom cabinets, factory-floor sensors, and automotive cabin-adjacent modules without a temperature derating headache. The page write time is 4 ms typical, and the byte/word write is 8 µs — fast enough for over-the-air firmware updates if you buffer the page in SRAM first. For data-logging applications, the 32 Mbit capacity stores roughly 4 MB of sensor records; with the 528-byte page size you can log 8192 entries before needing to erase a sector.

Frequently asked questions

What is the memory size and interface of AT45DB321E-MWHF-T?

It is a 32 Mbit serial flash memory with an SPI interface. The memory is organized as 8192 pages of 528 bytes each.

Does AT45DB321E-MWHF-T have a direct replacement or equivalent?

The AT45DB321E-MHF-T is a functional equivalent in the same 32 Mbit density and SPI interface, but verify the package compatibility. The AT45DQ321-SHFHJ-T offers a faster 104 MHz clock but uses a different page organization (512 bytes per page).