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Post Info TOPIC: identifying chips


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identifying chips


on the ECU board for the SV, there's a chip labelled TA632A ... it has 16 legs in a DIL package ... a lot of pins are earthed, a lot of pins are connected to +5v ... does anyone know what this chip is? or can point me to a datasheet? I'm guessing some sort of comparator?

In the first few hundred lines of code, the 7052 repeatedly toggles portE/bit0 which connects to this chip (and also to the FWE pin on the 7052) and I'm struggling to determine the purpose of all this toggling, especially so early on in the code.

There are a couple of other chips that I'm struggling to identify, so maybe this thread can be used for sharing info.


Cheers,
Mark.

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TA632 is all thats on it? Any other numbers or some kind of symbol identifiying the manufacturer?

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Same here, just before DMA is initialized to RAM channel pokes that, and somewhere else too.

Anyway I took a different strategy in dissassembling. First identifying the AD converter signals and then looking for variables which contain AD data. Now starting to be able to name maps according to that information. Particularly RPM, TPS, GPS and IAP variables are helpful.

Could you please post the ID code next to the chip, i.e. the IC502 or alike number ? Also if possible high quality photos of the board would be helpful.


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I think this is it ...
http://www.ortodoxism.ro/datasheets/toshiba/3827.pdf


the lettering on the chip is
TA632A3
8044F

I think the 632A3 is to throw us of the trail
and the part is really TA8044F,

Toshiba
3.3 V/5 V Dual-Voltage Regulator with Watchdog Timer


in the ECU, portE/bit0 is connected to pin10 (CK) ... looks like it provides a regular prod to the onboard watchdog ...

Cheers,
Mark

edit: IC401 on my ecu board

-- Edited by bozo at 11:34, 2007-12-16

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Oh yes - that is the voltage regualtor with watchdog. I guess the pulse is needed to keep the regulator to prevent rebooting the ecu. It should be very easy to find the datasheet for that one. There is also an additional diode from FWE signal to prevent booting the ecu due to missing watchdog signal while in programming state.

Same on busa board, in the future just use the ICxxx numbers...

IC401TA8044


-- Edited by PetriK at 14:42, 2007-12-16

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Don


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The 03/04 Kawasaki ZX6R has the 8044F IC with an identification of IC400.

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Hello guys, sorry for my English.

Need some help with a DENSO ECU. There are some IC's which have ID's that i can't identify. IC's marked as: D15180X, X may be 2,3,6,7.... I can't find any datasheet for it.... what actually model it can be?

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Those chips are made by another company and Denso put their part number of them. Usually they are motorola (now freescale) parts.

What year vehicle is it from? Do you know if it is 16bit or 32bit? How many pins, what kind of package is it?

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Hi everyone!
I have the same problem, I will follow the theme.

This ECU with toyota soarer 1998.
At the controller is marked: 1j-gt.
There is a motor 1jz-gte VVt-i, single turbo.

Here are some photos (caution, pictures are large):
http://photofile.ru/photo/vaz0v0d/3648009/81855451.jpg
http://photofile.ru/photo/vaz0v0d/3648009/81855452.jpg

-- Edited by Sergunb at 17:47, 2008-12-19

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RidgeRacer wrote:

What year vehicle is it from? Do you know if it is 16bit or 32bit? How many pins, what kind of package is it?




 1998 year... 16 or 32 bit is unkbown, 48pin DIP case



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2 Pugnator

How can I see you have the same ECU? hmm


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Sergunb wrote:

 

2 Pugnator

How can I see you have the same ECU? hmm

 



Toyota ownz the world aww

 



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offtopic:
Yes you are right.
if the news could you inform me?
I want to make the right ECU with MAP + temperature sensor.

-- Edited by Sergunb at 19:15, 2008-12-19

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According to a link I found on google the D151802 is the Intel BP87C51FC

The PDF for that 8-bit chip is Here.


Can we split Pugnator's question and the replies off to another thread so as not to hijack this one?

-- Edited by Gadget at 20:20, 2008-12-19

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Gadget wrote:

According to a link I found on google the D151802 is the Intel BP87C51FC

The PDF for that 8-bit chip is Here.


Can we split Pugnator's question and the replies off to another thread so as not to hijack this one?

-- Edited by Gadget at 20:20, 2008-12-19



sorry for this, I just didn't want to flood the forum with a similar topics...
only xxx803 series left to be identified. I guess it's Intel too... bot can't google it

 



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xxx803 is not enough to go on. Can you not read the xxx numbers? If you can read them, can you list some samples?

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Gadget wrote:

xxx803 is not enough to go on. Can you not read the xxx numbers? If you can read them, can you list some samples?



64pin DIP case, seems to run with 12Mhz clock generator
has marks:

|--------------------
|  D151803-0520    |
|  7433-1637          |
|--------------------

 



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Forget that datasheet I referenced above. I just took a look through it and it's a 40 pin dip, not a 48. So, that google reference must have been wrong.

I can't find anything on the other chips either. Sorry.

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Gadget wrote:

Forget that datasheet I referenced above. I just took a look through it and it's a 40 pin dip, not a 48. So, that google reference must have been wrong.

I can't find anything on the other chips either. Sorry.



thanks a lot! In spite of the fact the datasheet is wrong, i have a way to look through - it's surely the Intel IC. I think if I'll find automotive approved Intel CPU IC datasheets and if they have similar pinouts - it will be possible to read the EPROM and try to hack the bin

 



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Here are two pictures previous ECU.
Engine 1jz-gte 1996, twin turbo. Toyota.
at ECU marking JZZ30
http://photofile.ru/photo/vaz0v0d/3654498/81803927.jpg
http://photofile.ru/photo/vaz0v0d/3654498/81803928.jpg

cry

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