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CD4012 – Dual 4-Input NAND Gate (CMOS)
The CD4012 is a CMOS logic IC that contains two independent 4-input NAND gates. Each gate performs the logic NAND function where the output is LOW only when all four inputs are HIGH. Otherwise, the output remains HIGH. It is built using high-noise immunity CMOS technology and supports a wide voltage range, making it suitable for both TTL- and CMOS-compatible systems.
✅ Key Features:
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Two independent 4-input NAND gates
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Wide operating voltage range: 3V to 15V
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High noise immunity and low power consumption
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Standard CMOS outputs
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Fully compatible with other CMOS and TTL logic families
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Input protection with diode clamps
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Available in DIP-14, SOIC-14, and TSSOP-14 packages
📐 Datasheet Specifications:
| Parameter | Value |
|---|---|
| Function Type | Dual 4-Input NAND Gate |
| Logic Family | CMOS 4000 Series |
| Number of Gates | 2 |
| Inputs per Gate | 4 |
| Supply Voltage (V<sub>DD</sub>) | 3V to 15V |
| Max Input Current | ±1 µA at V<sub>DD</sub> = 15V |
| Output Drive Capability | ±10 mA (typically) |
| Propagation Delay | ~100 ns @ V<sub>DD</sub> = 10V |
| Operating Temperature Range | -55°C to +125°C |
| Package Types | DIP-14, SOIC-14, TSSOP-14 |
⚙️ Applications:
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Logic building blocks in digital circuits
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Control logic in industrial systems
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Signal combination and conditioning
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Digital decision-making circuits
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Embedded system hardware design
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Microcontroller I/O expansion
