Re_ Non-Volatile Memory
2005-06-12 by Owen Mooney
The FRAM products offer non volatile - fast read and write - no limitation on write cycle and a reasonably priced. Owen Mooney
Thread
Re_ Non-Volatile Memory
Re: [lpc2000] Re_ Non-Volatile Memory
2005-06-12 by Bob Paddock
On Sunday 12 June 2005 05:17 pm, Owen Mooney wrote: > The FRAM products offer non volatile - fast read and write - no > limitation on write cycle and a reasonably priced. FRAM's usually do have access cycle limits, which apply to both write *and* read, however they may be measured in the billions for some devices. Do you have a part number for a specific one in mind?
Re: Re_ Non-Volatile Memory
2005-06-13 by Richard
Check out Fujitsu and Ramtron. (Ramtron has serial FRAM) Richard --- In lpc2000@yahoogroups.com, Bob Paddock <bob.paddock@g...> wrote: > On Sunday 12 June 2005 05:17 pm, Owen Mooney wrote: > > The FRAM products offer non volatile - fast read and write - no > > limitation on write cycle and a reasonably priced. > > FRAM's usually do have access cycle limits, which apply to both write *and*
Show quoted textHide quoted text
> read, however they may be measured in the billions for some devices. > > Do you have a part number for a specific one in mind?
Re: [lpc2000] Re_ Non-Volatile Memory
2005-06-13 by Robert Adsett
At 05:37 PM 6/12/05 -0400, Bob Paddock wrote: >On Sunday 12 June 2005 05:17 pm, Owen Mooney wrote: > > The FRAM products offer non volatile - fast read and write - no > > limitation on write cycle and a reasonably priced. > >FRAM's usually do have access cycle limits, which apply to both write *and* >read, however they may be measured in the billions for some devices. Ramtron does claim unlimited cycles for their newest parts. Which, I strongly suspect, means too many for us to measure. Robert " 'Freedom' has no meaning of itself. There are always restrictions, be they legal, genetic, or physical. If you don't believe me, try to chew a radio signal. " -- Kelvin Throop, III http://www.aeolusdevelopment.com/
Re: [lpc2000] Re_ Non-Volatile Memory
2005-06-13 by Joe G (Work)
That's correct. When you do the calculations on how long it takes to read or write a byte and how many are in X years - they the endurance is said to be infinite. Joseph - Ramtron Distributor - Applications Engineer ----- Original Message -----
Show quoted textHide quoted text
From: "Robert Adsett" <subscriptions@...> To: <lpc2000@yahoogroups.com> Sent: Monday, June 13, 2005 1:32 PM Subject: Re: [lpc2000] Re_ Non-Volatile Memory > At 05:37 PM 6/12/05 -0400, Bob Paddock wrote: >>On Sunday 12 June 2005 05:17 pm, Owen Mooney wrote: >> > The FRAM products offer non volatile - fast read and write - no >> > limitation on write cycle and a reasonably priced. >> >>FRAM's usually do have access cycle limits, which apply to both write >>*and* >>read, however they may be measured in the billions for some devices. > > Ramtron does claim unlimited cycles for their newest parts. Which, I > strongly suspect, means too many for us to measure. > > Robert > > " 'Freedom' has no meaning of itself. There are always restrictions, be > they legal, genetic, or physical. If you don't believe me, try to chew a > radio signal. " -- Kelvin Throop, III > http://www.aeolusdevelopment.com/ > > > > > Yahoo! Groups Links > > > > > > >
RE: [lpc2000] Re_ Non-Volatile Memory
2005-06-13 by David Kay
Joe - you should be doing something else other than checking this group on your day off! DK
Show quoted textHide quoted text
-----Original Message----- From: lpc2000@yahoogroups.com [mailto:lpc2000@yahoogroups.com] On Behalf Of Joe G (Work) Sent: Monday, 13 June 2005 4:10 p.m. To: lpc2000@yahoogroups.com Subject: Re: [lpc2000] Re_ Non-Volatile Memory That's correct. When you do the calculations on how long it takes to read or write a byte and how many are in X years - they the endurance is said to be infinite. Joseph - Ramtron Distributor - Applications Engineer ----- Original Message ----- From: "Robert Adsett" <subscriptions@...> To: <lpc2000@yahoogroups.com> Sent: Monday, June 13, 2005 1:32 PM Subject: Re: [lpc2000] Re_ Non-Volatile Memory > At 05:37 PM 6/12/05 -0400, Bob Paddock wrote: >>On Sunday 12 June 2005 05:17 pm, Owen Mooney wrote: >> > The FRAM products offer non volatile - fast read and write - no >> > limitation on write cycle and a reasonably priced. >> >>FRAM's usually do have access cycle limits, which apply to both write >>*and* >>read, however they may be measured in the billions for some devices. > > Ramtron does claim unlimited cycles for their newest parts. Which, I > strongly suspect, means too many for us to measure. > > Robert > > " 'Freedom' has no meaning of itself. There are always restrictions, be > they legal, genetic, or physical. If you don't believe me, try to chew a > radio signal. " -- Kelvin Throop, III > http://www.aeolusdevelopment.com/ > > > > > Yahoo! Groups Links > > > > > > > _____ Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/lpc2000/ * To unsubscribe from this group, send an email to: lpc2000-unsubscribe@yahoogroups.com <mailto:lpc2000-unsubscribe@yahoogroups.com?subject=Unsubscribe> * Your use of Yahoo! Groups is subject to the Yahoo! Terms of <http://docs.yahoo.com/info/terms/> Service. [Non-text portions of this message have been removed]
Re: [lpc2000] Re_ Non-Volatile Memory
2005-06-13 by Robert Adsett
At 02:10 PM 6/13/05 +1000, Joe G \(Work\) wrote: >That's correct. > >When you do the calculations on how long it takes to read or write a byte >and how many are in X years - they the endurance is said to be infinite. >Joseph - Ramtron Distributor - Applications Engineer It's nice to hear from someone who knows. So how big is X? :) Robert " 'Freedom' has no meaning of itself. There are always restrictions, be they legal, genetic, or physical. If you don't believe me, try to chew a radio signal. " -- Kelvin Throop, III http://www.aeolusdevelopment.com/
Re_ Non-Volatile Memory
2005-06-13 by Owen Mooney
Ramtron advertise an FM25256
32K bytes
unlimited read/write cycles (their spec)
10 year data retention (their spec)
8 pin soic
A nice little device, FM25L256 is 3 V version.
I've got samples on my shelf but never used then in anger
owen mooney
Message: 6
Date: Sun, 12 Jun 2005 17:37:50 -0400Show quoted textHide quoted text
From: Bob Paddock <bob.paddock@...> Subject: Re: Re_ Non-Volatile Memory On Sunday 12 June 2005 05:17 pm, Owen Mooney wrote: >> The FRAM products offer non volatile - fast read and write - no >> limitation on write cycle and a reasonably priced. > > FRAM's usually do have access cycle limits, which apply to both write *and* read, however they may be measured in the billions for some devices. Do you have a part number for a specific one in mind?