Tesla MH7489 -- also 7908 (2112n) 14? pin dip IC

[sruger]

I've look arout the web quite alot for these 2 chips, the Tesla is a 16X4 static ram and the 7908 is a 14? pin dip, but the symbol on the chis is a big S.

Thanks in advance,

David

 

[ChrisP]

The Tesla 16x4 static RAM (MH7489) I have nothing at all on right now. As to the other chip, I suspect that the 7908 is a date code, and that the chip type is the 2112. I am aware of two different DIP-14 chips using that base number:

• high & low side driver **broken link removed** and **broken link removed**
• quad op-amp **broken link removed**

You should be able to determine which you have (if it is in circuit) by its associated circuitry...

 

[sruger]

Thank you ChrisP,
The chip was supplied to me for an electronics course, and the quad op-amps seems the most likely, Now that you mentioned it, I think it had JRC on the package, The S may have been on another IC. Another student had the datasheet on the MH7489, but I didn't get a chance to copy it.

Thanks Again,

David

 

[Sebi]

Maybe this is enough...