74LS47 BCD to 7-segment Decoder/Driver

74LS47 BCD to 7-Segment Decoder/Driver IC

The 74LS47 is a robust BCD to 7-segment decoder/driver integrated circuit, essential for converting binary-coded decimal inputs into signals suitable for driving 7-segment displays. This versatile IC features open-collector outputs, making it ideal for interfacing with common-anode LED displays. It efficiently decodes four lines of BCD data, generating the necessary seven segment outputs. Designed with standard TTL switching voltages, it seamlessly integrates into a wide range of digital logic circuits. Auxiliary inputs provide crucial functions like blanking, lamp testing, and cascadable zero-suppression, enhancing display control. Each segment output is engineered to sink up to 24mA, ensuring bright and clear display illumination. With its reliable performance and comprehensive features, the 74LS47 is a cornerstone component for various display applications. It's perfect for hobbyists and professionals alike seeking a dependable display driver solution.

Specifications:

• Input Type: 4-line BCD
• Output Type: 7-segment, Open Collector
• Logic Family: TTL (Transistor-Transistor Logic)
• Output Sink Current (max): 24 mA
• Output OFF-State Voltage (max): 15 V
• Output Leakage Current (max): 250 µA
• Operating Temperature Range: 0°C to 70°C
• Supply Voltage (typical): 5 V
• Number of Pins: 16-pin DIP (Dual In-line Package)
• Features: Lamp Test, Blanking, Zero Suppression

Key features and benefits:

• Converts 4-line BCD input to 7-segment output
• Open-collector outputs for direct common-anode LED display driving
• Integrated lamp test input for display verification
• Supports cascadable zero-suppression for leading/trailing zero blanking
• Provides blanking input for display control
• Guaranteed 24mA sink current per segment output
• Withstands 15V in the OFF (high) state
• Standard TTL logic switching voltages

Applications:

• Digital clocks and timers
• Frequency counters and voltmeters
• Industrial control panels
• Point-of-sale (POS) displays
• Educational electronics kits
• DIY project displays

Package Includes:

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