64K (8K*8) EPROM with Z-state output. Blank condition - all zeros.
You can order KR556RT16 from us
Other products in IC’s, UNF modules, Microassemblies

KR559IP3КР559ИП3

KR574UD1AКР574УД1А

KR590KN5КР590КН5

M1006VI1М1006ВИ1

M556RT16М556РТ16