Difference between MC33771B between MC33771C

[Ulli]

Hi, there are different data sheets for the B suffix and C suffix of this device. But I could not find a difference between the C and the B, or a table of features to look this up. Where can I find this information?

[diazmarin09 · Accepted solution]

Hello Ulli,

The MC33771C is a successor of the MC33771B. The MC33771C offers an averaging functionality and improved communication. Other functions are not changed. The MC33771C is pin and package compatible to the MC33771B.

MC33771C improvements:

• Averaging of up to 256 samples possible
• Potential reduction in the diagnostic filtering time from 25 to 6 ms
• Inductive and capacitive coupling support (current transformers & current external components)
• Improved communication protocol
• Up to 63 nodes are supported in one daisy chain
• Supports 20 m cable length between two nodes with transformer isolation
• Loopback support for one daisy chain

If you need more information about the differences between these devices, please submit a new case as it is confidential information.

I hope this information helps. 

Regards,

David

[Ulli]

Thank you for your help David! Much appreciated!