It's russian square ula ( signed as: ULA 1 / ULA-216 / T34BG1-213 / ULA-BALTIK / T34PE1 / KA1515XM1-171 ).
This ula is used on some russian ZX clones and also in ZX clones Didamtik M and Didaktik Kompakt.
http://sblive.narod.ru/ZX-Spectrum/A...C/ANBELO-C.htm
http://sblive.narod.ru/ZX-Spectrum/PLM-X/PLM-X.htm
http://sblive.narod.ru/ZX-Spectrum/Sirius/Sirius.htm
http://sblive.narod.ru/ZX-Spectrum/ATAS/ATAS.htm
All this russian ZX clones use this "ULA 1" chip with same pinout.






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