Inventec Processor: Requesting pinout data

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DigiTan

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I'm in search of data for an Inventec processor. The chip came from a TI-83+ graphing calculator as bares the text:

Inventec
6SI837 0A
Japan 0216EAI
PDARD
F0254ZAA

...if it helps, this is a Z80-enabled CISC processor. I've tried googling and came up empty. Any data on pinouts, or clocking data would be appreciated.
 
<Bump>

We'll it looks like no one has any info on it. If this is a foreign chip maker, what is generally the best way to get this info from them? I'm trying to find this data for a friend.
 
DigiTan said:
<Bump>

We'll it looks like no one has any info on it. If this is a foreign chip maker, what is generally the best way to get this info from them? I'm trying to find this data for a friend.

It's probably a custom chip manufactured for Texas, the number is probably an 'in-house' reference, and has no relationship to the manufacturers numbers - as such, there wouldn't be any datasheets available under this number.
 
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