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Old 22nd July 2009, 04:47 PM   #1
DAKOS is offline DAKOS  Canada
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Question 90A740 data sheet please

hi,
does any one has a data sheet please for this IC ? or at least what kind of component is it? i suspect it may be a eeprom but not sure...
thank you!!
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Old 23rd July 2009, 12:13 AM   #2
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Question Need more info

Can you post a picture and details? What's it from, package, pin count, etc?
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Old 23rd July 2009, 12:22 AM   #3
DAKOS is offline DAKOS  Canada
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it is a standard IC package..8 pins (4 on each side)..
i did a google search for the part but all i can found were some sellers ..no data sheet available...
thanks again!
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Old 23rd July 2009, 04:06 AM   #4
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Does it have a date code?
Does it have an additional prefix or suffix?
What is it next to? A microcontroller, an encoder, an LED, a power transistor, a modem?
What does the board do? Is it an amplifier board? Is it a PC motherboard? Is it from a TV?

It's much easier to reverse-engineer a board and ID components with a picture, thorough board description, knowing the board function, nearby components, what pins of the IC are Vcc and ground, etc.

I'd love to help but still need more data.
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Old 23rd July 2009, 05:11 PM   #5
DAKOS is offline DAKOS  Canada
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..the pcb is actually a car ECU...there are only 2 ICs on it and a few other passive components... the other IC is a big one so 100% that's the "processor" and my guess is that the small IC is the memory where all parameters are updated ... since no other IC around i'm more convinced that this should be the memory chip...
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