CEWE E808 & CEWE E740

[Michael B. (michael_b923)]

Hello everyone,

this is my first time here so please have mercy on me.

I have two (What I guess) Mikrocontrollers and I can not figure out what 
exactly are:

Mikrocontroller 1 with 80 PIN (Printed Information):

-------------|
IM           |
CEWE E808    |
9167 51 WF F |
072432000    |
-------------|

Mikrocontroller 2 with 100 PIN(Printed Information):

-------------|
IM           |
CEWE E740    |
9161 51 WF F |
072155001    |
-------------|

Could someone please explain me what are these two and where can I find 
Datasheet for them.

Kind Regards
Michael

[H. H. (Gast)]

Send pix.

[Steffen E. (steffene)]

No guarantees for anything, info may apply to your devices, or not. And 
I often just glance over the contents

Michael B. schrieb:
> what are these two

Well I found an IC with "ceve", see attached image. Second line "0061 53 
HF F", same structure as yours, last line same number of digits

Micronas seems to have marked their automotive microcontrollers with 
"ceve",cdvn,cdvs ect. In the attached image you can see the 
corresponding data in the chart.

Here the source in Wayback, dated 2003, not much data on that page 
however

https://web.archive.org/web/20030212091925/http://www.micronas.com/products/overview/automotive/index.php

Image sources

https://www.eevblog.com/forum/repair/can-someone-help-me-identify-this-chip/
Beitrag "Prozessor Information (Datasheet)"
https://forums.lr4x4.com/topic/106418-td5-instrument-retrofit-fuel-shows-max-faulty-speedo-fix/

[Steffen E. (steffene)]

Although better, of course, if you provide the aforementioned pics for 
users here, and possibly some kind of context information

[Steffen E. (steffene)]

In case info still welcome/needed

Steffen E. schrieb:
> Micronas seems to have marked their automotive microcontrollers with
> "ceve",cdvn,cdvs ect.

Micronas acquired(ect.) ITT Semiconductors in 1997

Michael B. schrieb:
> IM           |
> CEWE E740    |

So perhaps you mean "ITT Ceve E740"(?)

Here somebody writes "ITT CEVE 740E" (VW Golf 4 thread)

https://vwts.ru/forum/topic/128237/post-1721180

So considering ITT Semiconductors was acquired by Micronas, this chart 
from previous post may still apply
https://www.mikrocontroller.net/attachment/624020/screenshot_micronas_CDC08x.png

Here just as a visual example(!) an image of different mcu, an "ITT CVDS 
E440"
https://vwts.ru/images/repair4/157053_09.jpg