Where can I buy a SST 39SF040 EEPROM in the UK?

MikeHunt79 · 2nd December 2009, 07:45 PM

As title really, it's the type used in the DCX 2496, mine seems to be bad, and need a replacement!

SoundSousa · 2nd December 2009, 09:37 PM

This chip is not an EEPROM but a Flash CMOS BIOS type. It seems to be obsolete, and I could only find one place to get it without going through military vendors and having to buy in surplus.

Lot of 2 Used BIOS Chips. Model: SST 39SF040 - eBay (item 350283369643 end time Dec-23-09 06:30:23 PST)

Bios Chip SST 39SF040 Laptop HP Compaq Presari Pavilion - eBay (item 170409802629 end time Dec-20-09 19:19:30 PST)

Both are US/Can vendors. I could not find one in the UK.

MikeHunt79 · 2nd December 2009, 11:20 PM

Thanks, I forgot to say, they need to be PLCC32/DIP32 packaged also, tho I guess I could use an adaptor.

Would I be able to use another part in it's place? It holds the firmware in a DEQ2496...

SoundSousa · 3rd December 2009, 12:02 AM

Memory - Flash - 29F040

Its somewhat comparable and sells to the UK. Check the pin-out sheet, sells in PLCC form.

MikeHunt79 · 3rd December 2009, 11:08 PM

Quote:

Originally Posted by SoundSousa

Memory - Flash - 29F040

Its somewhat comparable and sells to the UK. Check the pin-out sheet, sells in PLCC form.

Thanks, I'll check out the 29F040 datasheet, I think if the pinout matches then it should work.

2nd December 2009, 07:45 PM	#1
MikeHunt79 diyAudio Member Join Date: Aug 2003 Location: Bristol, UK	Where can I buy a SST 39SF040 EEPROM in the UK? As title really, it's the type used in the DCX 2496, mine seems to be bad, and need a replacement!

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2nd December 2009, 09:37 PM	#2
SoundSousa diyAudio Member Join Date: Dec 2009	This chip is not an EEPROM but a Flash CMOS BIOS type. It seems to be obsolete, and I could only find one place to get it without going through military vendors and having to buy in surplus. Lot of 2 Used BIOS Chips. Model: SST 39SF040 - eBay (item 350283369643 end time Dec-23-09 06:30:23 PST) Bios Chip SST 39SF040 Laptop HP Compaq Presari Pavilion - eBay (item 170409802629 end time Dec-20-09 19:19:30 PST) Both are US/Can vendors. I could not find one in the UK.

2nd December 2009, 11:20 PM	#3
MikeHunt79 diyAudio Member Join Date: Aug 2003 Location: Bristol, UK	Thanks, I forgot to say, they need to be PLCC32/DIP32 packaged also, tho I guess I could use an adaptor. Would I be able to use another part in it's place? It holds the firmware in a DEQ2496...

3rd December 2009, 12:02 AM	#4
SoundSousa diyAudio Member Join Date: Dec 2009	Memory - Flash - 29F040 Its somewhat comparable and sells to the UK. Check the pin-out sheet, sells in PLCC form.

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