SN74LS155AN

The SN74LS155AN from Texas Instruments is a monolithic transistor-transistor-logic (TTL) circuit designed as dual 1-line-to-4-line demultiplexers. These circuits feature individual strobes and common binary-address inputs, all within a single 16-pin package. When both sections are enabled, the common binary-address inputs route input data to the appropriate output of each section. The individual strobes allow for activating or inhibiting each 4-bit section as needed.

This component supports a single supply voltage ranging from 4.75V to 5.25V and operates within a temperature range of 0°C to 70°C. It is designed for through-hole mounting and comes in a 16-DIP package. Input clamping diodes are included to simplify system design by minimizing transmission-line effects. The SN74LS155AN can be used as a 3-to-8-line decoder or a 1-to-8-line demultiplexer without external gating, thanks to an integrated inverter.

Key applications include dual 2-to-4-line decoding, dual 1-to-4-line demultiplexing, 3-to-8-line decoding, and 1-to-8-line demultiplexing. The choice of outputs includes Totem Pole for the '155 and 'LS155A variants. This device is suitable for various digital logic applications requiring demultiplexing or decoding functions.