FRAM provides up to 45 years data retention
Posted: 18 Jun 2009
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High-quality ArticlesRamtron International Corp. has released the FM24CL32 serial non-volatile RAM that offers high-speed read/write performance, low voltage operation and superior data retention.
The FM24CL32 features 32Kbit non-volatile memory, 2.7V to 3.6V 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.
"The FM24CL32 adds a low-power 32Kbit device option with the familiar I²C serial interface to our standard memory portfolio," remarks Mike Peters, Ramtron marketing manager. "Because ferroelectric RAM does not require an internally elevated power supply for write circuits, the FM24CL32 is an ideal non-volatile memory for data collection applications that require frequent or rapid writes."
Demanding industrial controls can benefit from the FM24CL32 where the long write time of EEPROM devices can cause data loss. In addition, FM24CL32 provides reliable data retention for 45 years when operated at +75°C, a necessary retention time for the utility metering industry.
The FM24CL32 is a serial ferroelectric RAM organized as a 4,096bit x 8bit 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 1MHz and supports legacy timing at 100kHz and 400kHz. The FM24CL32 provides data retention for up to 45 years while eliminating the complexities, overhead, and system level reliability problems caused by EEPROM and other non-volatile memories.
The FM24CL32 operates over the industrial temperature range of -40²C to +85²C in a low voltage, low power operation of 2.7V to 3.6V, with an active current of 70µA (typical at 100kHz) and 12µA current in standby.
Samples of the FM24CL32 are available now in RoHS-compliant, 8-pin SOIC package. Unit pricing begins at $0.99 in quantities of 10K. |
