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| Industry's First 4-Megabit Nonvolatile FRAM Memory Unveiled Ramtron International Corporation has launched the semiconductor industry's first 4-megabit FRAM memory – the highest-density FRAM product available. The FM22L16 is a 4Mb, 3-volt, parallel nonvolatile RAM in a 44-pin thin small outline plastic package that features fast access, virtually unlimited read/write cycles and low power consumption. Pin-compatible with asynchronous static RAM, the FM22L16 targets industrial control systems such as robotics, network and data storage applications, multi-function printers, auto navigation systems and a host of other SRAM-based system designs. The FM22L16 is organized as a 256K x 16 nonvolatile memory, accessed with an industry standard parallel interface. Access time is 55ns and cycle time is 110ns. The device reads and writes at bus speed for NoDelay writes with endurance of at least 1e14 (100-trillion) writes and 10-year data retention. This 4Mb FRAM is a drop-in replacement for standard asynchronous SRAMs, but far superior as it does not require a battery for data backup and is inherently more reliable due to its monolithic form. The FM22L16 is a true surface-mount solution, requiring no rework steps for battery attachment and, unlike SRAM, is highly resistant to moisture, shock and vibration. With a convenient interface to current high-performance microprocessors, the FM22L16 features a high-speed page mode that enables 4-byte burst read/write operations at up to 40MHz, a bus speed significantly higher than conventional RAM. The device boasts a lower operating current than standard SRAMs, drawing 18 milliamps for reads/writes and an ultra low current sleep mode of 5 microamps. It operates from 2.7 to 3.6 volts over the industrial temperature range (-40 degrees C to +85 degrees C). write your comments about the article :: © 2007 Computing News :: home page |