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Memory/Storage  

NV RAM replaces serial EEPROM

Posted: 24 Jun 2009     Print Version  Bookmark and Share

Keywords:FM24CL32  nonvolatile RAM  serial EEPROM 

Ramtron International has launched the FM24CL32, a serial nonvolatile RAM (NV RAM) that offers high-speed read/write performance, low voltage operation, and superior data retention. The FM24CL32 features 32-Kilobit (Kb) nonvolatile memory, 2.7 to 3.6-volt operation in an 8-pin SOIC package that uses two-wire (I2C) protocol. The FM24CL32 features fast access, NoDelay writes, virtually unlimited read/write cycles (1E14), and low power consumption. The FM24CL32 is a direct hardware replacement for serial EEPROM memory used in industrial controls, metering, medical, military, gaming, and computing applications, among others.

Demanding industrial controls can benefit from the FM24CL32 where the long write time of EEPROM devices can cause data loss. In addition, FM24CL32 provides data retention for 45 years when operated at +75 degrees C, a necessary retention time for the utility metering industry.

The FM24CL32 is a serial ferroelectric random access memory organized as a 4,096 x 8-bit memory array and is accessed using an industry standard two-wire (I2C) communication interface. Unlike an EEPROM, there are no write delays when using the FM24CL32, and the next bus cycle may commence immediately without the need for data polling. The device writes at bus speed up to 1 MHz and supports legacy timing at 100kHz and 400kHz.

The FM24CL32 operates over the industrial temperature range of -40 degrees C to +85 degrees C in a low voltage, low power operation of 2.7V-3.6V, with an active current of 70 microamps (typical at 100kHz) and 12 microamps current in standby.

Samples of the FM24CL32 are available now in a "Green"/RoHS-compliant, 8-pin SOIC package. Unit pricing begins at Rs.48.50 ($0.99) in quantities of 10K.

- Henri Arnold
EE Times Europe





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