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'[EE]: Wanted -- 28C16 EEPROM'
It seems I've really cheesed off the Gods of Electronics this week... or my HP 16500B. One or the other.
A few of you might be aware that it scrambled the 28C16 MAC address EEPROM earlier this week. I pulled the EEPROM, reprogrammed it, and reinstalled it. This worked fine until today, when I swapped the 504MB hard drive for a CompactFlash card. The LAN card wouldn't respond, then I power-cycled and got the "LAN Card EEPROM corrupt" message again.
Except this time it's terminal.
Pulled the chip from the socket -- data line D6 has become stuck low. So a fully erased chip returns 0xBF... joy.
Does anyone have a spare PLCC-packaged 28C16 EEPROM? This is a parallel EEPROM in a 32-pin package, and was made by a ton of companies. I need something 200ns or faster, ideally. The original part was a KM28C16J-20 (Samsung), although a Catalyst/ONSemi CAT28C16AGI, Atmel AT28C16 or similar part should be fine.
It seems these parts have become extremely difficult to find... :(
Philip Pemberton <piclist <at> philpem.me.uk> writes:
> Hi guys,
> It seems I've really cheesed off the Gods of Electronics this week... or
> my HP 16500B. One or the other.
> Does anyone have a spare PLCC-packaged 28C16 EEPROM? This is a parallel
mouser.com has it, even 90ns version.
Good luck pleasing the Gods (and your HP 16500B)!
On 25/02/11 20:19, Sergey Dryga wrote:
> mouser.com has it, even 90ns version.
I managed to snag a couple from ON Semiconductor's samples page (along with a couple of SMPSU chips and some databooks). Should hopefully get them some time next week -- the Fedex tracking log suggests they're somewhere in Kazakhstan at the moment (or they were last time I checked!)
$15 shipping doesn't seem too bad to me...
> Good luck pleasing the Gods (and your HP 16500B)!
I think I'll need all the luck I can get!
At the moment, I get the feeling I'm serving a valuable (?) role as the universe's chew-toy...
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