И тут буквально вчера опять аналогичный "звоночек" - дескать поставщики сообщают, что теперь и AT49BV163DT снята с производства. Снабжение интересуется, чем заменить. Иду на сайт Atmel и вижу, что действительно:
AT49BV163DT
16Mbit (1M x 16/2M x 8), 2.7V, Write Sectored Flash, Single Plane, Top Boot. Not recommended for new designs. Please contact Atmel to discuss the latest design in trends and options.
Никаких слов про замены нет, предлагается только связаться с саппотом. Вообще, в разделе параллельных флешей пустота, а весь немалый набор флешек 29/49 серий отправлен в mature devices.
Делать нечего, обращаюсь в саппорт, сегодня приходит официальный ответ:
Цитата
Product End of Life Notices (EOL) were issued on July 1, 2010 for all parallel Flash products with prefix codes AT49BV, AT29BV, AT29LV, and AT29C family devices notifying of the Last Time Buy date of Sept 29, 2010 and Last Time Ship date (Lead Time Windows)
With this being said Atmel will not have a direct replacement device and would suggest a third party. The other alternative would be to look to the serial flash family of products http://www.atmel.com/products/SFlash/defau...e=products_home and Atmel will happy to help answer any questions you may have in regards to availability.
As there have been many changes in the parallel flash industry can only suggest who to talk to and can not guarantee an alternative is still available.
Greenliant, (Former SST then Microchip) may have a very similar part to the 29family of devices called a small sector Flash SSF. http://www.greenliant.com/products/flash_memory.dot?cat=pf.
I am not aware of any small sector devices from Micron (former Numonyx), or Spansion. It may be worth while contacting Winbond, www.winbond.com or Macronix www.macronix.com both of which used to support small sector flash, however and again I am not sure if they still retain these products as active offerings.
Numonyx parts may be sector compatible to the Atmel device as well as having Top or Bottom boot block options available
http://numonyx.com/en-US/MemoryProducts/NO...Documents.aspx#
One difference is the programming. Numonyx device uses a 2 bus-cycle command set versus the Atmel 4 bus cycle command set. In read mode there is no difference. If the device is programmed in-system this will need a software change. Another obvious difference will be the Device ID. If the customer interrogates the Device ID they will need to add Numonyx to the recognized Device ID list in their software.
It may also be worth checking with the Spansion web site, www.Spansion.com as well for compatible parts, however Spansion pin outs and sector architectures are often different and would require more changes.
Over all it is strongly recommended that a full review of the datasheet and determine if there is any other impact to system and software.
With this being said Atmel will not have a direct replacement device and would suggest a third party. The other alternative would be to look to the serial flash family of products http://www.atmel.com/products/SFlash/defau...e=products_home and Atmel will happy to help answer any questions you may have in regards to availability.
As there have been many changes in the parallel flash industry can only suggest who to talk to and can not guarantee an alternative is still available.
Greenliant, (Former SST then Microchip) may have a very similar part to the 29family of devices called a small sector Flash SSF. http://www.greenliant.com/products/flash_memory.dot?cat=pf.
I am not aware of any small sector devices from Micron (former Numonyx), or Spansion. It may be worth while contacting Winbond, www.winbond.com or Macronix www.macronix.com both of which used to support small sector flash, however and again I am not sure if they still retain these products as active offerings.
Numonyx parts may be sector compatible to the Atmel device as well as having Top or Bottom boot block options available
http://numonyx.com/en-US/MemoryProducts/NO...Documents.aspx#
One difference is the programming. Numonyx device uses a 2 bus-cycle command set versus the Atmel 4 bus cycle command set. In read mode there is no difference. If the device is programmed in-system this will need a software change. Another obvious difference will be the Device ID. If the customer interrogates the Device ID they will need to add Numonyx to the recognized Device ID list in their software.
It may also be worth checking with the Spansion web site, www.Spansion.com as well for compatible parts, however Spansion pin outs and sector architectures are often different and would require more changes.
Over all it is strongly recommended that a full review of the datasheet and determine if there is any other impact to system and software.
Вот такие пироги, в общем. Все эти обширные линейки снимаются с производства без замен и поддержки. Т.е. идите лесом, товарищи, кто заложил в свои изделия параллельные флешки от атмела. Ругаться не буду, хотя эмоции негативные. Вывод простой: закладывать в индустриальные применения продукцию от атмела чревато вышеописанными проблемами - частичный (программный) либо полный редизайн рабочих серийных проектов в части используемой флеши. Лично я - пас.
Теперь вопросы. Рекомендованные в ответе от саппорта замены, кто что может сказать о надежности производителей и доставабельности? Упомянутый там Greenliant - сказано, что дочерняя от Microchip, а эта контора не была замечена в таком паскудном поведении. Правда, eFind не слишком много поставщиков показывает, это настораживает.
Numonyx гораздо шире представлен. Как с ним дела обстоят? Не хочется снова налететь на подобное, другой работы хватает.
Это инновационная компания! Давно пора сваливать с параллельных флешей и переходить на сериал. На что вас, ретроградов, Аtmel эффективно подталкивает. Хватит клепать старьё! 
