The **UCD4071L-S14-R** is a specific integrated circuit (IC) belonging to the CMOS 4000 series logic family. It is a **Quad 2-Input OR Gate**, commonly used in digital logic circuits for signal processing and Boolean operations. --- ## 1. Technical Specifications The following table summarizes the key electrical and physical characteristics of the UCD4071L-S14-R: | Parameter | Specification | | :--- | :--- | | **Logic Type** | OR Gate | | **Number of Circuits** | 4 (Quad) | | **Number of Inputs** | 2 per gate | | **Supply Voltage (Vcc)** | 3.0V to 18V | | **Operating Temperature** | -40°C to +125°C | | **Package Type** | SOP-14 (Small Outline Package) | | **Logic Level** | CMOS | | **Propagation Delay** | ~60ns at 10V (typical) | --- ## 2. Logic Function The device contains four independent OR gates. The output ($Y$) of each gate is **HIGH** (1) if at least one of the inputs ($A$ or $B$) is HIGH. ### Truth Table (Single Gate) | Input A | Input B | Output Y | | :---: | :---: | :---: | | L | L | **L** | | L | H | **H** | | H | L | **H** | | H | H | **H** | --- ## 3. Pin Configuration (SOP-14) The IC features 14 pins, distributed as follows: 1. **Inputs & Outputs:** Pins 1, 2, 5, 6, 8, 9, 12, 13 are inputs; Pins 3, 4, 10, 11 are outputs. 2. **VSS (Pin 7):** Ground (0V). 3. **VDD (Pin 14):** Positive Power Supply (3V–18V). --- ## 4. Key Features & Applications ### Features * **High Voltage Range:** Unlike the 74HC series (which usually tops out at 6V), the 4000 series can handle up to 18V. * **High Noise Immunity:** Suitable for industrial environments. * **Low Power Consumption:** Minimal static power dissipation due to CMOS technology. ### Applications * **Logic Signal Combining:** Merging multiple sensor signals into one trigger. * **Industrial Controls:** Interfacing with high-voltage relays or sensors. * **Oscillators:** Can be configured for basic timing circuits. * **Boolean Logic Implementation:** Building complex logic functions from simple gates. ---