Hello Junqiao,
The MCHC11F1CFNE4 is the direct replacement for the MC68HC11F1CFN4. It is the same device in regards of performance, functionality and packaging with the characteristic of been RoHS compliant.
In the following link you will find Product Change Notice 11462 – RoHS Compliant device migration info:
http://www.freescale.com/files/shared/doc/pcn/PCN11462.htm
Hope this information will be useful for you.
Have a great day.
Best Regards, :smileyhappy:
David Diaz.
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