What is the 74HC153 and Why Its Datasheet Matters
The 74HC153 is a dual 4-line to 1-line data selector/multiplexer. In simpler terms, it's like a sophisticated switch that can select one of four input lines and route it to a single output line. This functionality is incredibly useful in digital electronics for tasks such as data routing, signal selection, and implementing logic functions.- Dual Multiplexer : The "dual" part means it contains two independent 4-to-1 multiplexers within a single package.
- Selection Inputs : It has select lines that determine which of the four input data lines is connected to the output.
- Enable Input : An enable input allows you to turn the entire chip on or off, or in some configurations, control which of the two multiplexers is active.
- Pin Configuration : A clear diagram showing the function of each pin.
- Electrical Characteristics : This specifies the voltage, current, and timing requirements for the chip to operate reliably.
- Truth Tables : These tables illustrate the precise behavior of the chip under different input conditions.
| Select Input (S1 S0) | Output (Y) |
|---|---|
| 0 0 | D0 |
| 0 1 | D1 |
| 1 0 | D2 |
| 1 1 | D3 |