74LS147 DIP IC

The 74LS147 DIP IC is a 10-Line to 4-Line Priority Encoder belonging to the 74LS TTL (Low-Power Schottky Transistor-Transistor Logic) family. It is designed to convert one of ten decimal input signals (0–9) into a 4-bit Binary-Coded Decimal (BCD) output. The IC features a built-in priority encoding function, meaning that if more than one input is active simultaneously, the input with the highest priority (highest-numbered input) is encoded while the lower-priority inputs are ignored. This makes the 74LS147 ideal for applications where multiple input signals need to be processed efficiently without ambiguity.

The 74LS147 operates on a 5V DC power supply and is packaged in a 16-pin Dual In-line Package (DIP) for easy through-hole mounting on breadboards, PCBs, and prototype boards. The device uses active LOW inputs and active LOW BCD outputs, making it fully compatible with other TTL logic devices. Due to its priority encoding capability, it simplifies digital circuit design by reducing multiple input lines into a compact 4-bit output.

This IC is commonly used in keyboard encoding circuits, interrupt priority systems, digital control systems, data acquisition equipment, microprocessor interfaces, industrial automation, communication systems, and digital electronics laboratories. It is especially useful in systems where multiple switches or sensors may become active at the same time and the highest-priority signal must be processed first.

The 74LS147 DIP IC is widely used by students, hobbyists, engineers, and technicians for learning digital logic, designing encoder circuits, and developing embedded and industrial electronic systems. Its reliable TTL performance, fast operation, and priority encoding capability make it an essential component for digital logic applications.

Features

• Model: 74LS147

• Type: 10-Line to 4-Line Priority Encoder

• TTL Low-Power Schottky Logic (74LS Series)

• Converts decimal inputs to BCD outputs

• Priority encoder function

• Active LOW inputs

• Active LOW BCD outputs

• Operating Voltage: 5V DC

• High-speed TTL performance

• 16-pin DIP (Through-Hole) package

• Easy PCB and breadboard mounting

• Compatible with standard TTL logic circuits

Applications

• Keyboard encoder circuits

• Priority interrupt systems

• Digital control systems

• Data encoding applications

• Microprocessor interfacing

• Embedded system projects

• Industrial automation

• Digital communication circuits

• Educational electronics laboratories

• Robotics and automation

• DIY digital electronics projects

• Logic circuit prototyping

• Electronic instrumentation