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Authentication Flash

Flash Memories that provide handshake between the controller and the memory to ensure enhanced security of the data transmitted between the two devices. These products in the W74M family come with standard HMAC-SHA-256 crypto accelerator and 4 separate Monotonic Flash Counters that are HMAC-signed by individual secret keys.

Systems utilizing each Monotonic Flash Counter can not only verify the integrity and authenticity of the counter values, but also add a timestamp to the message/information transmitted as well as provide resistance to replay attacks.

Block diagram of authentication flash

W74M products enable system designers to strengthen code/data storage as well as deliver increased security with multi-layered authenticity for emerging IoT devices on the edge and outside the cloud. These security products also provide enhanced security to gateways, sensors, doorbells, cameras and other similar devices.

Multi-layer authentication

Density

Part No. Voltage Speed Temp. Features Automotive Status Datasheet
W74M02KV 2.7V - 3.6V 104MHz -40 ℃ ~ 85℃ Device and/or Module Authentication Flash Command and Socket Compatible - UD Contact us
W74M02GV 2.7V - 3.6V 104MHz -40 ℃ ~ 85℃ Device and/or Module Authentication Flash Command and Socket Compatible UD UD Contact us
Status1:P= Mass Production, S(Time)=Samples(Ready Time), UD (Time)= Under Development(Ready Time), N=Not Recommended For New Design, EOL=End of life.
Status2:All winbond Flash products are "Green", Halogen-Free and RoHS compliant packaging. Refer to the datasheet for details and specifications.
Enhanced3:SFDP, Security Registers, Program/Erase Suspend/Resume, Word Read Quad I/O, Burst Read with Wrap, Non-Volatile & Volatile Registers, Complement Array Protection.

Solution

Technical Documentation

Resources

Product Brief

Authentication Flash Product Brief

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