Old russian prescaler chips 193IE1 and 193IE4

[RoGeorge]

Made in former USSR, 25 years ago (1987):

All I have about them is this:

I don't speak russian and I couldn't find anything about these two IC's on the Internet. No datasheet, no application notes, no schematics, no cross reference parts, nothing.

Does anybody know, please, where I could find more informations about 193IE1 and 193IE4?

 

[barry]

If you apply 5 volts to the parts, they will invade Czechoslovakia.

 

[tanveerriaz]

**broken link removed**
**broken link removed**

 

[scramble]

wow!! where did you get them from?

 

[scramble]

Also, any idea where i can get russian capacitors?

 

[thebadtall]

some ebay sellers have lots of new old stock - cold war components, such as the capacitors you seek. many times in very good prices

 

[dick_freebird]

From the look of the schematics and knowing roughly
the state of Soviet semiconductor technology in the
Cold War era, I'd suspect them to be perhaps knockoffs
of ECL flip-flops (10K series). I didn't see any dividers per
se, in the lists, but suspect you could cobble something.

And of course modern RF CMOS prescalers are available
that run faster, though you'd need to find differential
ones and supply a lower supply voltage to use them
for the most part.