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PSoC™ 4 Forum Discussions

s1m1ch
Level 1
Level 1
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Hi,

because of supplier's stock shortages and too long lead time we are forced to replace the existing CY8C4247AZI-L423 MCU part number with CY8C4247AZA-M483 which has an acceptable lead time. It is the only part number that is pin-compatible and has the minimum memory and peripheral requirements that we are looking for. We also check the build of existing PSOC Creator projects with new MCU selected. The compilation doesn't report any errors. We are also aware that the new MCU have fewer UDB blocks and PLLs, but it seems to be enough for our needs.

I would just like to double-check with you if there are any other details that we should take care of before purchasing the new MCU part number. Does anyone have any concerns about replacing the CY8C4247AZI-L423 MCU with a pin-compatible CY8C4247AZA-M483? Pin compatibility and memory size are mandatory.

For any comments, we would be very thankful.

Regards,

Simon

 

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Aashita_Raj
Moderator
Moderator
Moderator
100 solutions authored 250 replies posted 250 sign-ins

Hi @s1m1ch ,

Assuming that you might have gone through the datasheets of both CY8C4247AZI-L423 and CY8C4247AZA-M483 devices, CY8C4247AZI-L423 has 32 KB of SRAM while CY8C4247AZA-M483 has 16 KB. Please re-check the memory requirements as per your application and you can go ahead with the replacement of the device.

Also, since you have already tried building your projects with CY8C4247AZA-M483 device with no errors, you can just try testing the projects if they are working and supported Otherwise, replacement of the devices should not create an issue. Please let us know in case of any further query.

Best Regards,

Aashita

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Aashita_Raj
Moderator
Moderator
Moderator
100 solutions authored 250 replies posted 250 sign-ins

Hi @s1m1ch ,

Assuming that you might have gone through the datasheets of both CY8C4247AZI-L423 and CY8C4247AZA-M483 devices, CY8C4247AZI-L423 has 32 KB of SRAM while CY8C4247AZA-M483 has 16 KB. Please re-check the memory requirements as per your application and you can go ahead with the replacement of the device.

Also, since you have already tried building your projects with CY8C4247AZA-M483 device with no errors, you can just try testing the projects if they are working and supported Otherwise, replacement of the devices should not create an issue. Please let us know in case of any further query.

Best Regards,

Aashita

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s1m1ch
Level 1
Level 1
5 sign-ins First reply posted First question asked

Hi @Aashita_Raj ,

Thank you for your reply and help. 

One thing... Are you sure that CY8C4247AZI-L423 has 32kB of SRAM and not 16kB? 

Regards, Simon

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Aashita_Raj
Moderator
Moderator
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100 solutions authored 250 replies posted 250 sign-ins

Hi @s1m1ch ,

Yes! the device CY8C4247AZI-L423 has 32kB SRAM. You can find this information here in the datasheet : https://www.infineon.com/dgdl/Infineon-PSoC_4_PSoC_4200L_Family-DataSheet-v12_00-EN.pdf?fileId=8ac78... .

Best Regards,

Aashita

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