The HD74153P is a high-speed, TTL (Transistor-Transistor Logic) dual 4-to-1 line data selector/multiplexer manufactured by Hitachi. This integrated circuit is designed for applications requiring the selection of one of four data sources. Each multiplexer has its own independent select inputs, allowing for flexible data selection.
Applications
- Data routing and selection in digital systems
- Address selection in memory systems
- Parallel-to-serial conversion
- Logic function generation
- Instrumentation and measurement equipment
Features
- Dual 4-to-1 line multiplexers
- High speed TTL performance
- Independent select inputs for each multiplexer
- Inhibit capability
- Low input loading
Benefits
- Simplifies data selection logic
- Enables efficient data routing
- Reduces component count
- Improves system performance through high-speed operation
- Provides flexibility in system design
Additional Details
The HD74153P operates from a single 5V power supply. Its inputs and outputs are compatible with other TTL devices. The device is commonly available in a 16-pin DIP (Dual In-line Package). Each multiplexer section has four data inputs (D0-D3), two select inputs (A and B), an enable input (G), and one output (Y). The output Y is active when the enable input G is low and the selected data input is high. When the enable input G is high, the output Y is low, regardless of the select inputs. The select inputs A and B determine which of the four data inputs is routed to the output. The relationship between the select inputs and the selected data input is as follows: if A=0 and B=0, then D0 is selected; if A=1 and B=0, then D1 is selected; if A=0 and B=1, then D2 is selected; and if A=1 and B=1, then D3 is selected.
