7448 Bcd To 7 Segment Decoder Driver
The 7448 BCD to 7-Segment Decoder Driver IC, also known as 74LS48 / SN74LS48N / 74HC48, is a versatile logic IC designed to drive common cathode 7-segment displays. It takes a Binary-Coded Decimal (BCD) input and translates it into corresponding outputs that control the segments (a–g) of a 7-segment display.
This IC is a crucial component in digital display systems such as digital clocks, calculators, counters, and measurement devices. With TTL logic compatibility, it integrates easily into most microcontroller and digital logic circuits. The chip includes built-in blanking and lamp test features for display control and diagnostics.
Whether you’re building an LED counter or a lab experiment on digital electronics, the 7448 decoder IC offers a compact and reliable solution for numeric display control.
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⚙️ Technical Specifications
| Specification | Details |
|---|---|
| IC Series | 74LS / 74HC / SN74 |
| Function | BCD to 7-Segment Decoder (Common Cathode) |
| Number of Inputs | 4 (BCD: A, B, C, D) |
| Number of Outputs | 7 (Segments a–g) + 3 Control Outputs |
| Output Compatibility | TTL |
| Operating Voltage | 4.75V – 5.25V |
| Output Type | Active LOW for display segments |
| Package | DIP-16 |
| Logic Type | Decoder/Driver |
| Propagation Delay | ~18 ns (typical) |
| Operating Temperature Range | 0°C to +70°C |
💡 Use Cases & Applications
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⏱️ Digital clocks and timers
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📟 7-segment numeric display modules
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📉 Digital counters and voltmeters
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🎛️ Microcontroller-based embedded systems
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📐 Educational projects in digital logic
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🧮 Binary to decimal display conversion
🛠️ Related Products & Internal Links
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🧠 Microcontrollers for decoding and control
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🔲 7-Segment Displays for numeric visualization
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🔧 Tools & Accessories for circuit building
🎥 YouTube Tutorial
📺 Watch: How to Connect 7448 Decoder to 7-Segment Display
⚠️ Precautions
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Only compatible with common cathode 7-segment displays
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Unused inputs should be pulled LOW or HIGH to avoid unpredictable behavior
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Ensure proper current limiting resistors are used for LED segments
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Do not exceed recommended voltage or temperature limits
🛒 Summary
The 7448 BCD to 7-Segment Decoder Driver IC is an essential digital component for translating binary data into human-readable numbers via 7-segment displays. Whether you’re developing an embedded project, a digital interface, or a lab experiment, this chip is designed to deliver dependable performance and clean numeric displays.
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