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.


Winbond Series Density Voltage Speed Temp# Features Packages DataSheet
Winbond Series Density Voltage Speed Temp# Features Packages DataSheet
W74M00AV  0Mb  2.7V - 3.6V  80 MHz  -40 ℃ ~ 85℃ / -40℃ ~ 105℃  One-Time-Password Authentication Standard SPI Interface  SOP8-150mil, SOP8-208 mil
W74M01GV  1Gb  2.7V - 3.6V  104MHz  -40 ℃ ~ 85℃  Device and/or Module Authentication Flash Command and Socket Compatible  WSON 8x6
W74M12JV  128Mb  2.7V - 3.6V  133MHz  -40 ℃ ~ 85℃  Device and/or Module Authentication Flash Command and Socket Compatible  WSON 8x6, WSON 6x5, SOP8-208 mil
W74M12JW  128Mb  1.7V - 1.95V  133MHz  -40 ℃ ~ 85℃  Device and/or Module Authentication Flash Command and Socket Compatible  WSON 8x6, WSON 6x5, SOP8-208 mil
W74M25JV  256Mb  2.7V - 3.6V  104MHz  -40 ℃ ~ 85℃  Device and/or Module Authentication Flash Command and Socket Compatible  WSON 8x6, SOP16 300 mil
W74M25JW  256Mb  1.7V - 1.95V  104MHz  -40 ℃ ~ 85℃  Device and/or Module Authentication Flash Command and Socket Compatible  WSON 8x6, WSON 6x5
W74M64JV  64Mb  2.7V - 3.6V  104MHz  -40 ℃ ~ 85℃  Device and/or Module Authentication Flash Command and Socket Compatible  SOP8-208 mil