SN74LS173AN High-Speed Logic Register IC
The SN74LS173AN is a 4-bit D-type register with 3-state outputs, part of the 74LS TTL logic family. It features synchronous data loading and clear functions, making it suitable for microprocessor interfacing, data buffering, and temporary storage in digital circuits. Packaged in a DIP-16, it offers high-speed operation, low power dissipation, and TTL compatibility, making it a reliable solution for both DIY projects and industrial embedded systems.
🔹 Applications
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Data storage in digital systems
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Microprocessor and microcontroller interfacing
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Buffering and temporary data registers
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Arithmetic and logic units (ALUs)
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Embedded systems and control boards
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Robotics, automation, and DIY electronics
🔹 Precautions
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Supply voltage should not exceed 7V
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Ensure proper grounding for stable operation
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Protect against ESD damage during handling
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Avoid direct short-circuit conditions on outputs
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Limit soldering temperature to 260°C for max 10s
🔹 Technical Specifications
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IC Type: 4-bit D-type Register with 3-state outputs
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Logic Family: 74LS (Low Power Schottky TTL)
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Package Type: DIP-16
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Bit Width: 4-bit parallel register
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Supply Voltage (Vcc): 4.75V – 5.25V
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Input Type: TTL compatible
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Output Type: 3-state
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Propagation Delay: ~20ns (typical)
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Input Current: ±0.1mA max
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Fan-out: 20 LS-TTL loads
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Power Dissipation: Low (typical TTL consumption)
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Operating Temperature Range: 0°C to +70°C
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Pin Count: 16 pins
📹 Tutorial Video
Watch SN74LS173 Register IC Tutorial
🔹 Related Categories
🔹 Summary
The SN74LS173AN High-Speed Logic Register IC (DIP-16) is a powerful and efficient solution for data storage and buffering in digital systems. With 4-bit D-type registers, synchronous operation, and tri-state outputs, it is widely used in microprocessor interfacing, embedded systems, robotics, and automation projects. A must-have addition to every IC’s collection.
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