The 74153 IC is a dual 4-line to 1-line multiplexer, which is widely used in digital electronics. Below is a detailed table summarizing its technical specifications and key features.
| Parameter | Description |
|---|---|
| IC Type | Dual 4-line to 1-line multiplexer |
| Manufacturer | Various (e.g., Texas Instruments, ON Semiconductor) |
| Part Number | 74153 |
| Package Type | DIP-16, SOIC-16 |
| Number of Channels | 2 |
| Input Lines per Channel | 4 |
| Output Lines per Channel | 1 |
| Control Inputs | 2 (Select Inputs) |
| Enable Inputs | 2 (Active Low) |
| Operating Voltage | 4.75V to 5.25V |
| Supply Current | Typically 6 mA |
| Propagation Delay | Typical: 14 ns (for 5V) |
| High-Level Input Voltage | Minimum 2V |
| Low-Level Input Voltage | Maximum 0.8V |
| High-Level Output Voltage | Minimum 2.7V |
| Low-Level Output Voltage | Maximum 0.5V |
| Power Dissipation | 24 mW (typical) |
| Operating Temperature | 0°C to +70°C (Commercial) / -40°C to +85°C (Industrial) |
| Logic Family | TTL |
| Applications | Data routing, function generation, data selection, digital signal switching |
| Datasheet Reference | Texas Instruments, ON Semiconductor, NXP Semiconductors, etc. |
Pinout Table: 74153 IC
| Pin Number | Pin Name | Description |
|---|---|---|
| 1 | 1C3 | Channel 1, Input 3 |
| 2 | 1C2 | Channel 1, Input 2 |
| 3 | 1C1 | Channel 1, Input 1 |
| 4 | 1C0 | Channel 1, Input 0 |
| 5 | 1Y | Channel 1, Output |
| 6 | 1G | Channel 1, Enable (Active Low) |
| 7 | 2C3 | Channel 2, Input 3 |
| 8 | GND | Ground |
| 9 | 2C2 | Channel 2, Input 2 |
| 10 | 2C1 | Channel 2, Input 1 |
| 11 | 2C0 | Channel 2, Input 0 |
| 12 | 2Y | Channel 2, Output |
| 13 | 2G | Channel 2, Enable (Active Low) |
| 14 | S1 | Select Input 1 |
| 15 | S0 | Select Input 0 |
| 16 | Vcc | Power Supply |
Functional Description
The 74153 IC functions as a dual 4-to-1 multiplexer, allowing two sets of four inputs to be routed to a single output for each set based on select lines. It is useful in applications requiring multiple data paths to be selected and directed to a single point.
Typical Use Cases
- Digital Data Routing: Switching between different data sources.
- Function Generation: Selecting between different function outputs.
- Signal Multiplexing: Combining multiple signals onto a single line.
Important Notes
- Ensure proper decoupling capacitors are used across the power supply pins to minimize noise.
- Verify voltage levels are compatible with the IC’s requirements to avoid damage.
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