Help identifying microcontroller

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tinkerer73

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I'm hoping someone might be able to help. I'm trying to modify software on a circuit that is using an 80 pin microcontroller that I have been trying to identify. At first, I thought it might be a Ti 185 series processor, but I'm not entirely sure.

I believe it's a TSOP package.

The numbers on it are as follows:

185
12255557
1L45M
QQPD0416

Any ideas, or can anyone point me in the direction of a searchable database?

Thanks in advance.
 

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