M74HC259 Overview
The M54/74HC259 is a high speed CMOS 8 BIT ADDRESSABLE LATCH fabricated in silicon gate C2MOS technology. It has the same high speed performance of LSTTL bined with true CMOS low power consumption. The M54HC259/M74HC259 has single data input (D) 8 latch outputs (Q0-Q7), 3 address inputs (A, B, and C), mon enable input (E), and a mon CLEAR input.