Embedded Systems Conference
Breaking News
Comments
Newest First | Oldest First | Threaded View
<<   <   Page 3 / 3
resistion
User Rank
Author
Re: Intel's eDRAM
resistion   8/8/2014 1:00:17 PM
NO RATINGS
I know they were starting to use 8T SRAM, that was a sign of problems for 6T. I assume the refresh controller will only refresh cells containing data. These could be sparse.

Violoncelles
User Rank
Author
on chip eDRAM at IBM
Violoncelles   8/8/2014 3:03:24 AM
NO RATINGS
IBM has been using on chip eDRAM on its chips for more than a decade .

resistion
User Rank
Author
Re: Intel's eDRAM
resistion   8/8/2014 2:23:41 AM
NO RATINGS
IIRC, refresh rate is lower for eDRAM, but not 0.

TanjB
User Rank
Author
Re: Intel's eDRAM
TanjB   8/8/2014 1:42:32 AM
NO RATINGS
Refresh seems to consume about 0.5W.  The L4 latency is about half that of DDR channels, and the bandwidth about the same as 4 DDR4.  Typical hit rate 95% (that would be remarkably good in general, but maybe the gamer market is what they aim at where locality might be better).

Not clear this is better than a Memory Cube.  But probably much cheaper.

xys
User Rank
Author
Re: Intel's eDRAM
xys   8/8/2014 12:09:49 AM
NO RATINGS
What is differenceof performance between Intel's L4 cache with eDRAM and regular DDR SDRAM on motherboard?

--

xys

resistion
User Rank
Author
Re: Intel's eDRAM
resistion   8/7/2014 8:05:34 PM
NO RATINGS
The DRAM will leak charge without a refresh, which requires power frequently every second. SRAM doesn't. Maybe SRAM doesn't sleep well enough anymore to conserve standby continuous power? What happened to near-threshold operation?

Susan Rambo
User Rank
Author
Re: Intel's eDRAM
Susan Rambo   8/7/2014 7:34:27 PM
NO RATINGS
Interesting. The article only mentions "The eDRAM also required 1/5 of the keep-alive power compared with an SRAM device." Could you explain more about eDRAM's constant refresh and is that something that would be fixed someday, do you think?

resistion
User Rank
Author
Re: Intel's eDRAM
resistion   8/7/2014 6:43:41 PM
NO RATINGS
Power saving is limited by constant refresh of eDRAM.

Susan Rambo
User Rank
Author
Intel's eDRAM
Susan Rambo   8/7/2014 6:32:48 PM
NO RATINGS
I'm curious to know what engineers' opinions are of the eDRAM. Techinsights has an interesting analysis of the technology here.

<<   <   Page 3 / 3


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
Martin Rowe

Leonard Nimoy, We'll Miss you
Martin Rowe
2 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.

Max Maxfield

Awesome 3D Electronic Sculptures
Max Maxfield
13 comments
I recently received an email from someone we'll call Martin (because that's his name). Martin's message was short and sweet. In its entirety it read: "You need to see this!"

Rajaram Regupathy, Cypress Semiconductor

Add USB Battery Charging Protocols to an Android-Based Design
Rajaram Regupathy, Cypress Semiconductor
Post a comment
Editorial Note: Excerpted from Unboxing Android: A hands on approach with real world examples, by Rajaram Regupathy, the author takes you through the process incorporating effective power ...

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 ...
Radio
LATEST ARCHIVED BROADCAST
EE Times Senior Technical Editor Martin Rowe will interview EMC engineer Kenneth Wyatt.
Flash Poll