The primary reference manual for this chip is the . This document can be downloaded from a number of online retro-computing repositories:
From the , here are the key electrical characteristics at T_A = 25°C, VCC = 5V ±5%: kc89c72 datasheet
to send commands to the chip for partial capability demonstrations. KC89C72 FILFACT/SAMSUNG DIP-40 Other Components The primary reference manual for this chip is the