some old east german chips

[Borris70]

hi,

i got a big bunch old old east german chips but can't identify the function of them.

U256C (probably 256k DRAM?)
C560C
C565C
C5650C
C5658C
C570C
C571C
C574C
D718
U1101C
U1021C
U61256C (probably 256k DRAM? what's the difference to U256C)

Any ideas? frassl?

[Elar]

U256C is 16K DRAM, clone of 4116

[fRaSsL]

Here I am :-]

C560C = D/A (8bit -> analogue)
C565C = 12bit DAC
C5650C = 10bit DAC
C5658C = 8bit DAC (only mentioned in datasheets from 1988)
C570C = 8bit ADC
C571C = 10 ADC
C574C = fast 12bit ADC
D718 = 16bit seriell-> parallel converter
U1101C = PCM Codec
U1021C = Zeitlagensteuerschaltkreis
U61256C = 256k x 1 DRAM (yours is a 100ns type)

If you have interesting East German chips, let me know.

[Elar]

Western clones:
C570C - AD570
C571C - AD571
D718D - UAA2022
C560C - AD558
C565C - AD565

[Borris70]

wow! that's fast response. all chips are identified in less than one hour

thanks

[Borris70]

[fRaSsL]

No. There is no such list :-/ If you want to read smth. interesting:

Peter Salomon: "Die Geschichte der Mikroelektronik-Halbleiterindustrie der DDR". I'm in constant contact with the author (Peter) and the book also contains a (not complete) list of east-german chips. But it's the most complete list I know... Ahmm... ISBN = 3-936124-31-0