codes on renesas mcus

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osmanpasali

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Hi everybody,
I bought Renesas R8C/1B mcus. It is written "1B4 J3C0" on the mcus. on the ones i bought before it was written "1B4 F4K0". what do these expressions mean?
 
Hi everybody,
I bought Renesas R8C/1B mcus. It is written "1B4 J3C0" on the mcus. on the ones i bought before it was written "1B4 F4K0". what do these expressions mean?

Never heard of the devices - but I would imagine the numbers are date or batch codes.
 
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