HEF4505B Overview
The HEF4505B is a 64-bit, 1-bit per word, fully decoded and pletely static, random access memory. The memory is strobed for reading or writing only when the strobe input (ST), chip enable inputs (CE1 and CE2) are HIGH simultaneously. The output data is available at the data output (DOUT) only when the memory is strobed, the read/write input (R/W) is HIGH and after the read access time has passed.