8-Bit Microcontrollers

[Geo***]

Hello,

Can Any one explain me the significance of MC,PC,S conventions.(eg MCHCS908AW60/PCHCS908AW60/S9HCS908AW60). I understand they stand for fully qualified,Product Engineering,Auto Qualified respectively.But what does that mean.

If I were to buy MCUs in bulk will I be given only MCxxxxxxx?  

Thanks in Advance!

[Ake]

Hi,

When Freescale has made a new MCU, but it has not been tested yet, it is called PCxxx.

The PC parts are not for sale, and are given away to important customers, who must have them to shorten the developement time.

The MC prefix means that this is a fully-qualified part. There are datasheets and realibility figures available. They are fully qualified.

In the old days, the first Motorola MCU was the MC6800. It was furhter developed into the MC6801, -2, -5.

Some of the MC680x had an EPROM on board. They were called the MC687xxx devices.

After some additional years, the processing was changed, and the new parts were called the MC68HCxx devices. A typical EPROM part was the MC68HC705C8.

Later a brand new family was launched. It was called the HC908 family, where the "9" said that a Flash EPROM was used and the family was the "08".

A typical part was the MC68HC908JL3.

Recently a new "08" family was launced. But as the ICs were getting smaller and smaller, the name had to be changed to MC9Sxxx, so it would fit on the package. The "9" is a Flash EPROM part, and the "S" declares the family name. 

There are some MCUs that are available in special versions, eg the MC68HRC908JL3, which runs with a simple R-C oscillator.

The devices that you mention, I have not heard of. The closest is the MC9S08AW60 or the PC9S08AW60.

If you bought the 9S08AW60, you would get the MC type.

If you got the PC  type, you should get a few pieces, and you should get them free.

Regards,

Ake

[Geo***]

Hi Ake,

Howz life in Spain!!!

Ok!!! My devices were

MC9S08DZ60MLF
PC9S08DZ60F0MLF
S9S08DZ60F1MLF

And not AW family..To be more familiar I converted DZ to AW

I'm satisfied with the answers for MC and PC.But what about S9S08DZ60F1MLF

Message Edited by Geo*** on 2008-10-14 10:53 AM

[Geo***]

Hello All,

S=Auto Qualified  ???? What does that mean ..Anything to do with Automotive field ???

For Heaven's sake somebody reply

What are Freescalers here doing

S9S08DZ60==>

9==>Flash Type

S08==>Core

DZ==>Family

60==>Approx Flash size in kB.

Message Edited by Geo*** on 2008-10-14 02:16 PM

[J2MEJediMaster]

It means the part has been qualified for automotive applications.

---Tom

[Geo***]

Hi Tom,

Thanks a lot !

[Lundin]

Will this be standard part number for all Freescale micros or just for the S08 family? Where is the documentation about this?

Great idea to choose S9 as prefix so we won't at all confuse it with neither S908 nor Motorola s-records...

I guess it will follow the tradition of logcial and intuitive part numbers. Look at the different part numbers the S12 went through for example:

- First there was 68HC12.
- Then a new device was made, called "Star12".
- Star12 was renamed to MC9S12*****.
- Some silicon masks were named MCS12*****B.
- When the bugs were fixed, new silicon masks got the name MC9S12***** back. Or sometimes it was called "C" just to confuse, but this isn't an official part number.
- New letter "E" was appended with RoHS.
- New letters were appended with tape & reel. This part number was completely undocumented anywhere, it just popped up out of the blue without any info about it. As far as I know, it is still undocumented.

You can be **bleep** sure the Freescale retailers and their app engineers are utterly clueless as soon as you ask them about part numbers and silicon masks. Every single one of them I have met will always "get back to me" as soon as I ask about it. Or alternatively smile, nod and give me the wrong chip. I have received 68HC12 when I wanted S12. I have received S12DG128B when I explicitly asked for one without "B".

I really don't blame the retailers either, because Freescale keeps spitting out hundreds of new MCUs each year and the structure of the part numbers is constantly changing...

[Ake]

Hi,

I have not heard about the S9S08 before.

But I guess that Tom is right. It must be some special qualification, made for one ctm I'd suppose.

Regards,

Ake

[Geo***]

Hi Ake,

I think its not a custom made.
Its from datasheet MC9S08DZ60 Series Data Sheet, Rev. 4, Page 405 ,MC9S08DZ128 Series Data Sheet, Rev. 1 page 447.

[Lundin]

Here is a link to Freescale's official site:

http://www.freescale.com/webapp/sps/site/prod_summary.jsp?code=S08D&nodeId=016246844929941644&tab=Buy_Parametric_Tab&fromSearch=false

Such a bright idea to change the part number... not even Freescale themselves know about it. I wonder what part the retailer will give me when I ask for S9... probably a STR9 from ST Microelectronics.