54150 and 54151A are data selectors/multiplexers that can select the desired data source. 54150 can select 16 data sources, and 54151A can select 8 data sources. 54150 and 54151A both have a programmable input that must be at a low logic level to enable these devices.
The 54150 and 54151A are data selector/multiplexer integrated circuits that provide on‑chip decoding to select one of multiple data sources. The 54150 selects one‑of‑sixteen inputs, while the 54151A selects one‑of‑eight inputs and offers complementary W and Y outputs. Both devices use a strobe input that must be low to enable operation; a high strobe forces the W output high and the Y output low.
The datasheet lists electrical characteristics such as typical propagation delays (35 ns for select, 30 ns for strobe), supply voltage range (4.5 V–5.5 V), and power dissipation (200 mW for 54150, 135 mW for 54151A). Physical dimensions for various dual‑in‑line and molded packages are provided, along with pin‑out diagrams and logic tables.
| Number of selectable data lines | 16 for 54150, 8 for 54151A |
|---|---|
| Typical power dissipation | 200 mW (54150), 135 mW (54151A) |
The 54150 can select one of sixteen data inputs.