Freescale Launches 22 New ColdFire Parts (New V1, V2, and V4 parts)

[JWW]

    All:

   Check out the following web page link:

   NEW ColdFires

Some great new V2 and V1 products at reduced prices.

And the long awaited new V4m core (with MMU).

New Part Families Launched:

• MCF51QE
• MCF5221x
• MCF5223x
• MCF5445x

The new V4 based parts have a great new development system, Linux BSP pre-installed, and DDR2 support, all with some pretty nice low power numbers.

The dev kit is on special right now... Limited time you get can 25% off on the kits.

-JWW

[chris82369]

JWW, how does one get the 25% discount ?

[JWW]

Chris82369,

We run a variety of specials on development kits at different times of the year.  The 25% off was a limited time offer that ran out a few months after we launched the initial kits.

You can send me a private email and we can discuss your need.  As we are striving to make sure cost of development kits are not a factor for our customers, I'm always open to your needs and feedback.

Also, you can contact your local Freescale Sales Rep and ask for assistance....  FYI...

-JWW

[mjbcswitzerland]

Hi JWW

Is it possible to explain the new M52236 part?
It seems to be basically an M52233 with slighly lower clocking specification. Is this the case? What advantages does it have? [price?].

The new M5221X range - they seem to be M5222X devices with reduced RAM, but I have noticed a few other differences:
- There is also a second I2C bus.
- There is the possibility to run the RTC from an external clock or oscillator (is there any real advantage of using this feature? - the RTC still doesn't seem to be able to run with CPU power  removed.)
Are there other differences which I haven't spotted?

Concerning the IIC pin descriptions in the users' manual. There is an omission in the pin function list (Table 2-1) since only SCL/SDA are shown. Later I found something in the General Purpose I/O module (Figure 13-1) which seems to show where all possible signals of the two IIC busses are located, which suggests quiet a few missing entries in the first (and most important) table.

Regards

Mark Butcher

www.uTasker.comhttp://www.mjbc.ch/" rel="nofollow" target="_blank

[macl]

To maintain pin compatibility with MCF5222X, the newer devices with the second I2C (MCF5221X & MCF521XX) have the extra I2C pins, SDA1 & SCL1, muxed in with other functions.

Looks like table 2-1 was updated in the MCF521XX reference manual to show these options, but the MCF5221X wasn't.  We will get it fixed soon.  Thanks for catching that. 

Thanks,

Mac

[macl]

Hi Mark,

I can answer some of your questions on the MCF5221X.

Yes, this device has two I2C, whereas the MCF5222X has one.  Also the MCF5221X Real Time Clock can be  clocked externally because the RTC will get power from Vstby if the main power is shut down.  Vstby will both retain the RAM state, and RTC in this case. 

Other than those items, plus memory size and price point, the two devices are very similar. 

I will check into users manual items you mentioned.

Thanks very much for your feedback!

macl