K170AP3V The 170-series chips are interface circuits, TTL-type, made using bipolar technology with pn junction isolation, designed to work in devices for controlling the circuits for writing and reading information in address and bit lines and for converting signals read from memory blocks of computer memories and devices of discrete automation, for transmission of information via communication lines. The K170AP3V chip is a dual current driver for managing memory on MOS structures. Contains 134 integral elements.