Identifying ic help

[Ericho]

Hi,

Could use some help in identifying 2 components.

1 28dip ic and 1 3wire potted astec part (see picture attached)

thanks
Eric

[johnboxall]

What did you pull the parts out of? A timing device?
With regards to the IC, the only thing I can find that matches the pin count and model number is the Intersil ICM7045.
http://html.alldatasheet.com/html-pdf/337253/INTERSIL/ICM7045/3894/10/ICM7045.html

[amyk]

Electronic Arrays, Inc. EA7045, week 29 1974

The EA7055 was a calculator chip, so that one may be from a similar series.

[IO390]

The astec part is likely a buck boost converter.

I remember pulling one out of an old Commodore calculator and my dad said that told me that it was a buck boost.

[calexanian]

Hey! There is a dimes worth of gold right there! Gota love them vintage chips!

[Ericho]

What did you pull the parts out of? A timing device?
With regards to the IC, the only thing I can find that matches the pin count and model number is the Intersil ICM7045

I pulled it of an ancient DIY project I found in a junk box at a garage sale. It was just a diy pcb with a few parts. It seems to have a footprint for a long SIL package (7seg displays ?) connected to a row of transistors (digit select ?)

The chip most likely drives a display, could be a digital clock, makes sense as a diy project in the 70's 

Found no crystal or footprint for a crystal and caps on the pcb, could it be that the astec part in the picture is some sort of watch crystal ??
It was bodged on the pcb.

The astec part is likely a buck boost converter.

I remember pulling one out of an old Commodore calculator and my dad said that told me that it was a buck boost.

Would you need something like that to drive a 8 or 9 7sig display from those days ?
I found a damaged 9 digit led display in the same junk box with very small segments