Embedded Systems Conference
Breaking News
Comments
Newest First | Oldest First | Threaded View
resistion
User Rank
Author
re: ST turns to PCM for MCU embedded memory
resistion   5/21/2013 10:40:07 PM
NO RATINGS
Each cell would require mA's of current at 90 nm.

resistion
User Rank
Author
re: ST turns to PCM for MCU embedded memory
resistion   5/18/2013 6:04:55 PM
NO RATINGS
True, retention less than an hour.

Ron Neale
User Rank
Author
re: ST turns to PCM for MCU embedded memory
Ron Neale   5/18/2013 9:32:33 AM
NO RATINGS
With the spin dial always set a maximum when presenting to analysts it would appear that some lessons of the past have been forgotten; blinded perhaps it would appear by the rosy glow of PCM futures selling. The long and more recent history of phase change memory (PCM) has been plagued by claims that Flash memory will not scale, the problem it did and still does. Moving the target from NAND to NOR is again just asking to be proved wrong. I guess the analysts failed to ask the question what is now different in the approach of ST now and why will it not result in the same end point, i.e. the failure of Numonyx and its absorption into Micron. Especially if some of the same cast of characters are involved. Prototyping PCM at 90nm, for 2013, with a 55nm Flash NOR ready for production is an interesting approach. The long search for amorphous PCM materials (inherently meta-stable) that offer thermal stability is again part of PCM history. There is from ST an implied prediction that for the 28nm lithographic node embedded PCM their “progress” will have yielded a result, with a device suitable for all three application areas by 2016. It would also be useful to know what the embedded PCM will offer over the flash NOR, that is the USP. While there is no mention of the planned memory bit capacity for the target applications; from a competitive viewpoint it would appear that MRAM and FeRAM are likely to be serious competitors, whereas for 1Gb they still have some way to go vis-a-vis PCM. It is interesting that for pre-programmed devices it is suggested that melting is the problem. The crystallization temperature for PCM materials is always lower than the melting temperature so I would have thought bits in the pre-programmed amorphous state would be more vulnerable to the effects of soldering.

greenpattern
User Rank
Author
re: ST turns to PCM for MCU embedded memory
greenpattern   5/17/2013 3:32:41 PM
NO RATINGS
It's not likely they will meet the 125 C spec.

resistion
User Rank
Author
re: ST turns to PCM for MCU embedded memory
resistion   5/17/2013 2:39:37 PM
NO RATINGS
28 nm CMOS core voltage not enough to drive PCM.



Top Comments of the Week
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
Max Maxfield

ESC Boston 2015 Sneak Peek! Embedded Systems That Glow in the Dark
Max Maxfield
Post a comment
Some time ago, I asked my mom what she knew about radiation. She replied that she didn't know much about it at all; all she did know was that she didn't want to be in the same room as ...

Chris Wiltz, Managing Editor, Design News

10 Greatest Hoaxes in the History of Engineering
Chris Wiltz, Managing Editor, Design News
4 comments
You'll probably be reading your fair share of fake headlines on April 1, but phony tech news - both for scams and humor - aren't anything new. The history of science and technology is rife ...

Bernard Cole

A Book For All Reasons
Bernard Cole
3 comments
Robert Oshana's recent book "Software Engineering for Embedded Systems (Newnes/Elsevier)," written and edited with Mark Kraeling, is a 'book for all reasons.' At almost 1,200 pages, it ...

latest comment mjlinden Thanks for your input!
Martin Rowe

Leonard Nimoy, We'll Miss you
Martin Rowe
5 comments
Like many of you, I was saddened to hear the news of Leonard Nimoy's death. His Star Trek character Mr. Spock was an inspiration to many of us who entered technical fields.

Special Video Section
After a four-year absence, Infineon returns to Mobile World ...
A laptop’s 65-watt adapter can be made 6 times smaller and ...
An industry network should have device and data security at ...
The LTC2975 is a four-channel PMBus Power System Manager ...
In this video, a new high speed CMOS output comparator ...
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, ...
Radio
LATEST ARCHIVED BROADCAST
EE Times Senior Technical Editor Martin Rowe will interview EMC engineer Kenneth Wyatt.
Flash Poll