PSoC4 pin for pin compatibility

[es]

Are the PSoC4 CY8C4247AZI-M485 and the CY8C4248AZI-L485 pin for pin compatible?  Is the CY8C4248AZI-L485 a drop in replacement for the CY8C4247AZI-M485?  I have a board designed for the CY8C4247AZI-M485 and finding out more RAM is needed.  

Also, the CY8C4248AZI-L485 has USB pins that are no-connects on the CY8C4247AZI-M485.  My board is designed already.  If the CY8C4248AZI-L485 is a drop in replacement for the CY8C4247AZI-M485, what should I do with the USB pins?  Just disable these USB pins?  Thanks.

[BragadeeshV · Accepted solution]

Hi @es ,

The parts CY8C4247AZI-M485  and  CY8C4248AZI-L485 are pin to pin compatible. The PSoC 4200 L part can be used as a drop in replacement for  CY8C4247AZI-M485  device. You can leave the USB pins unconnected in the PSoC 4200 L part since you are not using USB. 

Just to confirm once, change the device to the PSoC 4200 L part in the PSoC Creator and ensure that the project builds fine without any errors . This ensures that there is no schematic error.