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Discussion of precise voltage measurement

Re: [volt-nuts] 3458A NVRAM (David C. Partridge)

quarks_1@gmx.de

Tue, Jan 9, 2018 10:41 AM

Hello Dave,

I have experienced the same issue with my programmer and found out it must be the slow "Power-Up to First Access (tPU)" of 10ms from the FM1608B/FM16W08.
Older FM1608 were much faster (only 1µS).

see details

http://www.eevblog.com/forum/metrology/yes-another-3458a-repair-and-nvram-replacement-to-ramtron-fram/msg1115349/#msg1115349[https://deref-gmx.net/mail/client/2vk_h1VL_4g/dereferrer/?redirectUrl=http%3A%2F%2Fwww.eevblog.com%2Fforum%2Fmetrology%2Fyes-another-3458a-repair-and-nvram-replacement-to-ramtron-fram%2Fmsg1115349%2F%23msg1115349]

bye
Marcus

PS: This is my first post, hope this works now with plain text format

Hello Dave, I have experienced the same issue with my programmer and found out it must be the slow "Power-Up to First Access (tPU)" of 10ms from the FM1608B/FM16W08. Older FM1608 were much faster (only 1µS). see details http://www.eevblog.com/forum/metrology/yes-another-3458a-repair-and-nvram-replacement-to-ramtron-fram/msg1115349/#msg1115349[https://deref-gmx.net/mail/client/2vk_h1VL_4g/dereferrer/?redirectUrl=http%3A%2F%2Fwww.eevblog.com%2Fforum%2Fmetrology%2Fyes-another-3458a-repair-and-nvram-replacement-to-ramtron-fram%2Fmsg1115349%2F%23msg1115349] bye Marcus PS: This is my first post, hope this works now with plain text format

David C. Partridge

Fri, Jan 12, 2018 1:22 PM

I contacted Conitec who have always been very helpful by all reports.

Sad to say they won't do the device support work for the FM18W08 on the Galep-4 without a charge (I guess this was bound to happen at some stage).

Ho-hum
Dave

-----Original Message-----
From: volt-nuts [mailto:volt-nuts-bounces@febo.com] On Behalf Of quarks_1@gmx.de
Sent: 09 January 2018 10:42
To: volt-nuts@febo.com
Subject: Re: [volt-nuts] 3458A NVRAM (David C. Partridge)

Hello Dave,

I have experienced the same issue with my programmer and found out it must be the slow "Power-Up to First Access (tPU)" of 10ms from the FM1608B/FM16W08.
Older FM1608 were much faster (only 1µS).

see details

bye
Marcus

PS: This is my first post, hope this works now with plain text format

volt-nuts mailing list -- volt-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts
and follow the instructions there.

I contacted Conitec who have always been very helpful by all reports. Sad to say they won't do the device support work for the FM18W08 on the Galep-4 without a charge (I guess this was bound to happen at some stage). Ho-hum Dave -----Original Message----- From: volt-nuts [mailto:volt-nuts-bounces@febo.com] On Behalf Of quarks_1@gmx.de Sent: 09 January 2018 10:42 To: volt-nuts@febo.com Subject: Re: [volt-nuts] 3458A NVRAM (David C. Partridge) Hello Dave, I have experienced the same issue with my programmer and found out it must be the slow "Power-Up to First Access (tPU)" of 10ms from the FM1608B/FM16W08. Older FM1608 were much faster (only 1µS). see details http://www.eevblog.com/forum/metrology/yes-another-3458a-repair-and-nvram-replacement-to-ramtron-fram/msg1115349/#msg1115349[https://deref-gmx.net/mail/client/2vk_h1VL_4g/dereferrer/?redirectUrl=http%3A%2F%2Fwww.eevblog.com%2Fforum%2Fmetrology%2Fyes-another-3458a-repair-and-nvram-replacement-to-ramtron-fram%2Fmsg1115349%2F%23msg1115349] bye Marcus PS: This is my first post, hope this works now with plain text format _______________________________________________ volt-nuts mailing list -- volt-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts and follow the instructions there.