The IC 74148, also known as SN74HC148, is a High-Speed CMOS 8-to-3 Priority Encoder. It takes 8 active-low inputs and encodes them into a 3-bit binary output, giving priority to the highest-order active input. This makes it ideal for applications where multiple inputs need to be prioritized and encoded efficiently.
The device also provides an active-low "Enable Output" and "Group Select" signals, making it easy to cascade multiple encoders for larger systems. With its fast switching speeds, low power consumption, and standard DIP-16 package, the 74148 is perfect for use in microcontroller interfaces, data selection, interrupt handling, and control logic circuits.
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Key Features:
- Logic Family: 74HC (High-Speed CMOS)
- Function: 8-to-3 Priority Encoder
- Input Type: Active Low (0 = active input)
- Operating Voltage (Vcc): 2V to 6V
- Input Logic Level (at 5V Vcc):
- Low: Max 0.8V
- High: Min 2.0V
- Output Current: ±25mA max per pin
- Propagation Delay: ~8ns (at 5V)
- Package: DIP-16 (Dual Inline Package)
- Operating Temperature: -40°C to +85°C
Applications:
- Interrupt priority management
- Data acquisition systems
- Signal multiplexing
- Digital control panels
- Encoder expansion in large systems
The SN74HC148 makes organizing and prioritizing multiple digital signals simple and efficient, saving both space and complexity in your designs. Trust MICROSPARK for the components you need to bring your ideas to life!
