Design Con 2015
Breaking News
Comments
Newest First | Oldest First | Threaded View
cefischer
User Rank
Rookie
re: Ramtron rejects Cypress again, in talks with others
cefischer   7/20/2012 5:21:12 PM
NO RATINGS
An annotation regarding the 3.5 years above: This number is pure calculatory with little practical importance. In a real-world application, endless, consecutive accesses at maximum speed to one and the same cell do not occur. Thus, the limited number of access cycles is more or less of academic value.

cefischer
User Rank
Rookie
re: Ramtron rejects Cypress again, in talks with others
cefischer   7/15/2012 10:16:14 PM
NO RATINGS
Generally, I think that any niche should be big enough for specialized manufacturers to continue with their plans and that it would indeed be nice, if smaller companies could resist to sell themselves for a couple of stacks. I also think Ramtron has built a solid foundation with their products to continue but there is a lot of work to do to develop FRAM technology further in order to overcome its drawbacks that somehow restrict its use. Will that happen? Companies are in business to make money and those transaction discussions regarding Ramtron make me think they will not continue their current operations long enough to refine their excellent products.

cefischer
User Rank
Rookie
re: Ramtron rejects Cypress again, in talks with others
cefischer   7/15/2012 10:09:57 PM
NO RATINGS
Embedded FRAM can surely play an important role. But I think how they get paid for it is just one thing. As far as I know, TI is producing for Ramtron so it seems to be a keen thing for TI to integrate FRAM into their own MCUs. This might also be the reason that Ramtron no longer offers their own line of 8051 compatible MCUs that came with FRAM integrated (for quite a long time so the idea of an FRAM based MCU is neither new nor revolutionary). I do not think that FRAM will leave its niche in the near future. There are technical constraints and the trend to even use high speed memory in applications where it is not mandatory that seem to restrict a widespread use of FRAM, embedded or stand-alone. FRAM is quite slow, with access times around 50-60 ns, and precharging stretches access cycles over 100 ns. Even in slower systems, this may require special attention (this is what we learned using parallel FRAM). The same fact restricts Ramtron's state savers to maximum frequencies of 1 MHz which restricts their use. Next, FRAM does wear out. A cell can last over 1e15 access cycles so practically, this might be of no concern. Our systems work with an 8 MHz bus and can use FRAM in place of SRAM. The devices meet bus timing requirements very well, data is immediately non-volatile and before the FRAM fails, the system could work for more than 7,900 years. Apparently excellent, especially when taking FRAM's radiation resistance into account. But speed can matter: An MPU working in the same application at maximum access time cuts the FRAM memory system MTBF down to 3.5 years. This may represent problems so the use of FRAM is restricted to more or less slower devices or those that take its characteristics into account. Looking closer at TI's Wolverine µC also shows up this fact. Reliable it may be, but integrating FRAM is not necessarily trivial or cheap, so I think the market will always be a niche and using FRAM in the manner TI does might not be feasible for others.

Peter Clarke
User Rank
Blogger
re: Ramtron rejects Cypress again, in talks with others
Peter Clarke   7/5/2012 3:37:24 PM
NO RATINGS
I think the stand-alone FRAM market is a niche, but embedded FRAM as a non-volatile memory for microcontrollers appears to have some appeal (see TI's Wolverine). This is probably why Cypress is interested. The question is how does Ramtron get paid for embedded FRAM?

resistion
User Rank
CEO
re: Ramtron rejects Cypress again, in talks with others
resistion   7/5/2012 1:32:01 PM
NO RATINGS
Is the niche FRAM market too small for Ramtron to continue?



Top Comments of the Week
Flash Poll
Like Us on Facebook

Datasheets.com Parts Search

185 million searchable parts
(please enter a part number or hit search to begin)
EE Life
Frankenstein's Fix, Teardowns, Sideshows, Design Contests, Reader Content & More
<b><a href=Betajet">

The Circle – The Future's Imperfect in the Present Tense
Betajet
5 comments
The Circle, a satirical, dystopian novel published in 2013 by San Francisco-based writer Dave Eggers, is about a large, very powerful technology company that combines aspects of Google, ...

Max Maxfield

Recommended Reads From the Engineer's Bookshelf
Max Maxfield
27 comments
I'm not sure if I read more than most folks or not, but I do I know that I spend quite a lot of time reading. I hate to be idle, so I always have a book or two somewhere about my person -- ...

Martin Rowe

Make This Engineering Museum a Reality
Martin Rowe
Post a comment
Vincent Valentine is a man on a mission. He wants to make the first house to ever have a telephone into a telephone museum. Without help, it may not happen.

Rich Quinnell

Making the Grade in Industrial Design
Rich Quinnell
16 comments
As every developer knows, there are the paper specifications for a product design, and then there are the real requirements. The paper specs are dry, bland, and rigidly numeric, making ...

Special Video Section
The LT8640 is a 42V, 5A synchronous step-down regulator ...
The LTC2000 high-speed DAC has low noise and excellent ...
How do you protect the load and ensure output continues to ...
General-purpose DACs have applications in instrumentation, ...
Linear Technology demonstrates its latest measurement ...
10:29
Demos from Maxim Integrated at Electronica 2014 show ...
Bosch CEO Stefan Finkbeiner shows off latest combo and ...
STMicroelectronics demoed this simple gesture control ...
Keysight shows you what signals lurk in real-time at 510MHz ...
TE Connectivity's clear-plastic, full-size model car shows ...
Why culture makes Linear Tech a winner.
Recently formed Architects of Modern Power consortium ...
Specially modified Corvette C7 Stingray responds to ex Indy ...
Avago’s ACPL-K30T is the first solid-state driver qualified ...
NXP launches its line of multi-gate, multifunction, ...
Doug Bailey, VP of marketing at Power Integrations, gives a ...
See how to ease software bring-up with DesignWare IP ...
DesignWare IP Prototyping Kits enable fast software ...
This video explores the LT3086, a new member of our LDO+ ...
In today’s modern electronic systems, the need for power ...