Ramtron MaxArias RF Enabled Wireless Memory Family

Ramtron’s MaxArias wireless memory combines the low power, high speed, and high endurance features of Ramtron’s nonvolatile F-RAM memory technology with wireless access to enable innovative data collection capabilities for a broad range of applications. The MaxArias WM710xx wireless memory operates over the industrial temperature range (-40°C to +85°C). The WM710xx will be offered in several configurations: a standard green RoHS-compatible 6-pin UDFN package, bumped wafer, bare dice, or as a fully tested ISO-18000-6C compliant transponder antenna inlay.

MaxArias WM710xx EPC Gen-2, high-density memory transponder ICs

Ramtron’s first family of wireless memory devices, named the MaxArias WM710xx product line, features F-RAM memory with passive UHF EPCglobal Class-1 Generation-2 wireless access in a transponder IC with 4-, 8-, and 16-Kilobit user memory densities. The WM710xx family is ideal for applications spanning many industries including aircraft/industrial manufacturing, inventory control, maintenance tracking, building security, electronic toll collection, pharmaceutical tracking, and product authentication, among others. Production of WM710xx family is scheduled to begin in the first quarter of 2010.

Ramtron’s first family of MaxArias wireless memory combines up to 16-Kilobits of high-performance, nonvolatile F-RAM memory with EPCglobal Class-1 Generation-2 UHF Air Interface Protocol Standard, operating at 860MHz to 960MHz. When combined with an optimised antenna design, the MaxArias WM710xx product family powers up with energy harvested directly from the RF field. As specified in the Gen-2 standard, the MaxArias chip receives and processes commands transmitted by the RFID reader.

The first MaxArias wireless memory devices (WM71004, WM71008, and WM71016) are organised as 256/512/1024 x 16 bits, respectively. The devices have virtually unlimited read/write endurance of 1E14 (100-trillion) writes and 20-year data retention. MaxArias wireless memory offers fully symmetrical operation for reads and writes in terms of range, sustained memory access bandwidth, and reliability — all at the maximum data rates allowed by the Gen-2 standard.

Ramtron MaxArias Features

  • Greater RF sensitivity
    The WM710xx write operations are zero power, resulting in no power or speed penalty for executing writes.
  • Improved range
    The low power F-RAM-enabled MaxArias wireless memory provides symmetrical wireless reads/writes at 10 metres or more.
  • Superior write-speed
    With speeds up to 6x faster than EEPROM, MaxArias wireless memory enables full memory block-write operations, allowing more data to be stored faster without the required “soak time” of EEPROM-based devices.
  • Block-write integrity
    Data integrity is ensured with Ramtron’s SureWrite feature that prevents data corruption during full block-writes.
  • Magnetic field and gamma radiation tolerant
    Due to F-RAM’s invulnerability to magnetic fields and high tolerance to gamma radiation, the MaxArias wireless memory is an ideal choice for applications that are subject to magnetic or irradiating fields.

More info: Ramtron | EPCglobal