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Renesas Electronics AT45DB081E-SSHN2B-T — DC-DC Power Modules

AT45DB081E-SSHN2B-T 8Mbit SPI NOR Flash, 85 MHz, 8-SOIC

MPNAT45DB081E-SSHN2B-T
End of Life

Adesto / Dialog AT45DB081E-SSHN2B-T, 8Mbit SPI NOR Flash, 85 MHz clock, 1.7V-3.6V supply, 8-SOIC, -40°C to 85°C, Tape & Reel.

$1.86Ref. price · indicative, final on quote
Renesas Electronics AT45DB081E-SSHN2B-T datasheet (PDF)
Packaging8-SOIC (0.154", 3.90mm Width)
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

AT45DB081E-SSHN2B-T specifications
ParameterValue
Memory typeNon-Volatile
MountingSurface Mount
Supply voltage1.7V ~ 3.6V
Clock frequency85 MHz
Memory interfaceSPI
Operating temperature-40°C ~ 85°C (TC)
PackageTape & Reel (TR); Cut Tape (CT)
TechnologyFLASH
Memory size8Mbit
Memory formatFLASH
Case8-SOIC (0.154\", 3.90mm Width)
Memory organization256 Bytes x 4096 pages
Write cycle time - word, page8µs, 4ms

Product details

The AT45DB081E-SSHN2B-T is an 8Mbit serial NOR Flash memory organized as 256 Bytes x 4096 pages and accessed over an SPI bus at up to 85 MHz. It is a non-volatile memory for firmware storage, parameter logging, or code shadowing in embedded systems where a small footprint and low pin count matter. The 8-SOIC package and surface-mount assembly suit compact PCBs in industrial controls, IoT edge nodes, and telecom modules.

85 MHz SPI clock and page write timing

The 85 MHz clock rate delivers read throughput suitable for direct code execution (XIP) or fast firmware downloads. Page write completes in 8 µs, and a full sector erase takes 4 ms — fast enough for over-the-air updates or frequent data logging without stalling the application. The 256-byte page size aligns well with common Flash file systems and bootloader block sizes.

Industrial temperature grade

The 85°C upper limit covers most industrial enclosures without active cooling.

Frequently asked questions

Can AT45DB081E-SSHN2B-T operate at 3.3V?

Yes, the supply range is 1.7 V to 3.6 V, so 3.3 V is well within the operating window. The SPI I/O levels track the supply rail.

Can AT45DB081E-SSHN2B-T operate at 1.8V?

Yes, 1.8 V is within the 1.7 V to 3.6 V supply range. The part is fully specified down to 1.7 V, so a 1.8 V rail is fine.

Does AT45DB081E-SSHN2B-T have any known cross-reference or equivalent?

The closest functional peer is the AT45DB081E-SSHN-T, which shares the same 8Mbit density, SPI interface, 85 MHz clock, and 8-SOIC package. The -SSHN2B variant differs in ordering code details but is functionally equivalent for most designs.