54LS256 Overview
Key Features
- Q3) are LOW. Dual 4-channel demultiplexing occurs when the (CL) and E are both LOW. When CL is HIGH and E is LOW, the selected output (Q0
- Q3), determined by the Address inputs, follows D. When the E goes HIGH, the contents of the latch are stored. When operating in the addressable latch mode (E = LOW, CL = HIGH), changing more than one bit of the Address (A0, A1) could impose a transient wrong address. Therefore, this should be done only while in the memory mode (E = CL = HIGH)
