Product category:
Memory Devices and Modules
News Release from: Solid State Supplies | Subject: FM3808
Edited by the Electronicstalk Editorial
Team on 17 January 2002
Nonvolatile memory takes clock and more
onboard
The FM3808, the first in a new line of problem-solver memories from Solid State Supplies, is a combination of a 256Kbit nonvolatile FRAM with a real-time clock and system-supervisor functions.
The FM3808, the first in a new line of problem-solver memories from Solid State Supplies, is a combination of a 256Kbit nonvolatile FRAM with a real-time clock and system-supervisor functions The unique nonvolatile advantage of FRAM secures all memory and real-time clock configuration settings in nonvolatile registers without a power source of any kind
This article was originally published on Electronicstalk on 6 Feb 2001 at 8.00am (UK)
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The FM3808 enables low profile, surface mount timer solutions to be built without battery backup, ensuring the high-reliability storage of critical nonvolatile data.
Reducing board area and cost, the FM3808 is ideal for data collection and logging applications that acquire and timestamp data.
Problem-solver memories reduce system complexity and cost by integrating FRAM with nonvolatile logic and mixed-signal functions.
The 256Kbit FM3808 includes a system-level real-time clock, power monitor, programmable watchdog timer, and programmable time/date alarm functions.
All configuration information is stored in nonvolatile registers and retained in the absence of power.
Equivalent SRAM-based real-time clocks require a battery to back up stored data, reducing the long-term life of the product, whereas FRAM-based products use integrated ferroelectric capacitor storage cells to store nonvolatile data without a battery.
The no-battery advantage of FRAM makes the FM3808 an ideal single-chip solution for applications that demand highly reliable data collection such, as electronic power meters, printers and copiers, and automotive instruments.
The FM3808 operates from a 5V power supply with 15mA active and less than 1uA timekeeping backup current.
The FM3808 offers programmable power monitor interrupt and programmable watchdog timer.
It has over 10 years of data retention and is rated over the industrial temperature range of -40 to +85C.
Also available is a development kit which includes the FM3808 chip, all necessary discrete devices and a 0.1F capacitor that backs up the clock for 48 hours.
The FM3808DK is delivered in a DIL package to eliminate any analogue or fine-pitch surface mount layout issues during prototyping.
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