74HC148 8 to 3 Line Priority Encoder IC (DIP- 16 Package)

74HC148 8 to 3 Line Priority Encoder IC is a high-performance CMOS logic integrated circuit designed to encode eight active-LOW input signals into a compact three-bit binary output. This IC is widely used in digital electronics, embedded systems, microcontroller-based projects, and communication circuits, where efficient data encoding and priority handling are essential.

Belonging to the 74HC (High-Speed CMOS) logic family, the 74HC148 offers low power consumption, high noise immunity, and fast switching speeds, making it ideal for modern digital applications. Its built-in priority logic ensures that when multiple inputs are active simultaneously, the input with the highest priority is encoded at the output.

Key Features of 74HC148 Priority Encoder IC

• 8-to-3 Line Priority Encoding
  Converts eight active-LOW inputs (D0–D7) into a 3-bit binary output.

• Built-in Priority Function
  When multiple inputs are active, the highest-priority input (D7 highest, D0 lowest) is selected automatically.

• High-Speed CMOS Technology
  Provides fast propagation delay while maintaining low power consumption.

• Wide Operating Voltage Range
  Operates typically from 2V to 6V, compatible with TTL and CMOS logic levels.

• Low Power Dissipation
  Ideal for battery-powered and energy-efficient digital systems.

• Cascadable Design
  Enable (EI) and group select (GS) outputs allow easy cascading for larger encoder configurations.

• Noise-Resistant Operation
  Excellent noise margins ensure stable performance in industrial and embedded environments.

• Standard DIP/SOIC Package
  Easy to integrate into breadboards, PCBs, and educational kits.

Specifications – 74HC148 Encoder IC

• Logic Family: 74HC (High-Speed CMOS)

• Function: 8-Line to 3-Line Priority Encoder

• Input Type: Active-LOW

• Output Type: Active-LOW

• Operating Voltage (Vcc): 2V to 6V (typical 5V)

• Propagation Delay: ~15 ns (typical at 5V)

• Power Consumption: Very low static and dynamic power

• Operating Temperature: –40°C to +85°C

• Package Types: DIP-16, SOIC-16 (varies by manufacturer)

• Pin Count: 16 pins

How the 74HC148 Works

The 74HC148 accepts eight active-LOW input signals (I0–I7) and produces a 3-bit binary code corresponding to the highest-priority active input. Input I7 has the highest priority, while I0 has the lowest. If no inputs are active, the encoder remains disabled. Additional pins such as Enable Input (EI), Enable Output (EO), and Group Select (GS) allow multiple encoders to be cascaded efficiently.

This makes the 74HC148 particularly useful in systems where multiple interrupt requests, keypad signals, or data lines need to be encoded efficiently with priority control.

Applications of 74HC148 Priority Encoder IC

The 74HC148 IC is widely used in both commercial and educational electronics projects. Common applications include:

• Interrupt Priority Handling in microprocessor and microcontroller systems

• Keyboard and Keypad Encoding

• Data Compression and Signal Encoding Circuits

• Digital Communication Systems

• Bus Arbitration and Resource Management

• Embedded Systems and Control Units

• Multiplexing and Demultiplexing Logic

• Industrial Automation and Control Panels

• Educational and Training Kits for Digital Electronics

Why Choose the 74HC148 8 to 3 Line Priority Encoder?

The 74HC148 Priority Encoder IC stands out for its reliability, efficiency, and ease of integration. Its CMOS architecture ensures low power operation without compromising speed, while its priority logic simplifies complex digital designs. Whether you are designing embedded systems, digital logic circuits, or academic projects, the 74HC148 provides a compact and dependable solution for priority-based encoding.

Package Includes:

1 x 74HC148 8 to 3 Line Priority Encoder IC (DIP- 16 Package)

FAQ

1. Where can we buy this 74HC148 8 to 3 Line Priority Encoder IC?

This product is available online https://aiiottech.in/product/74hc148-8-to-3-line-priority-encoder-ic/ and also available at our store in Pudupakkam/Kelambakkam, Chennai-603103

2. When can I get this 74HC148 8 to 3 Line Priority Encoder IC after placing the order?

RGRJ AIIoT TECHNOLOGIES will immediately ship and deliver the product within 1-3 working days.

Video Link: SN74HC148N 8-Line To 3-Line Priority Encoders