Replacement for CY8C26443-24PI

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Prati_12
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Hi, I'm using CY8C27443-24SXI as a replacement for the old CY8C26443-24PI microcontroller. I have used a adapter for the dip to soc pins and using the same software as the previous microcontroller but the replacement does not seem to work. I have checked electrical connections(no shorts) and the MCU is receiving 5V but there is no output, it's showing a 0V (usually it should be 4V). Is there anything I could try to make the replacement work with the same software or any debugging ideas? Thanks.

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SampathS_11
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250 sign-ins 250 solutions authored 5 questions asked

Hello @Prati_12 ,

Even though the two devices have the same pinout, internally there are many differences between them that the same hex files will not work. You may have to make changes to the source files also. Whether the changes will be few or substantial, depends on the original project.

Best regards,

Sampath Selvaraj 

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