54LS256 Datasheet (Motorola) - DUAL 4-BIT ADDRESSABLE LATCH

54LS256, DUAL 4-BIT ADDRESSABLE LATCH

DUAL 4-BIT ADDRESSABLE LATCH The SN54/74LS256 is a Dual 4-Bit Addressable Latch with common control inputs; these include two Address inputs (A0, A1), an active LOW Enable input (E) and an active LOW Clear input (CL).

Each latch has a Data input (D) and four outputs (Q0 Q3).

When the Enable (E) is HIGH and the Clear input (CL) is LOW, all outputs (Q0 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