topic Updated naming convention for 8-bit devices ?? in 8-bit Microcontrollers

Updated naming convention for 8-bit devices ??

bigmac — Thu, 12 Apr 2007 10:48:37 GMT

Hello Alban,

In the referenced post you are advocating that the 'HC' prefix be dropped for the 16-bit devices, as being more trendy.

http://forums.freescale.com/freescale/board/message?board.id=16BITCOMM&message.id=3699

What are your thoughts concerning 8-bit devices?

To be totally consistent (and trendy?) should we be referring to 08xxx, S08xxx and RS08xxx parts from now on? Will this also be reflected in new releases of documentation? What about the full part numbers used for ordering purposes?

Regards,

Mac

Re: Updated naming convention for 8-bit devices ??

peg — Thu, 12 Apr 2007 11:27:14 GMT

Hi Mac,

This has already happened.

What was a MC68HC908GP32CFB

is now a MC908GP32CFBE

They dropped the whole 68HC. (The extra E on the end is for RoHS)

S08's have always been MC9S08xxyyzzz

Given that then it safe to always drop the MC

and probably the 9 as I'm sure most of the stuff talked about here is 9. If its not 9 then you should specify.

So now the same rules would apply as for 12

Care needs to be taken to include letter suffixes that describe internal changes and not packaging options though.

Re: Updated naming convention for 8-bit devices ??

Alban — Thu, 12 Apr 2007 21:28:49 GMT

Hello,

For HC08 it is difficult to say, a lot of people call them "08's" but as it is an old family, I don't see much benefit to eliminate HC08 as it keeps letter to clearly identify we talk about FSL MCU.

But for the newer parts, HC is redundant and confusing also (because people drop the "S" sometimes).

I would need to find someone in 8-bit to do the cleaning on FSL side...

The MC is usually safe to drop because very little people work with prototypes, noted PC.

MC means fully qualified.

PC means engineering samples.

XC (obsolete) means prototype.

Then, the 9 can usually be omitted because of the context.

9 means flash,

3 means ROM,

7 means OTP.

Alban.