The **UCD4050BL-P16-R** is a specific part number representing a **Non-Inverting Hex Buffer/Converter**. It belongs to the 4000 series CMOS logic family, primarily designed for signal buffering and voltage level translation. Below is a detailed breakdown of its specifications, functionality, and packaging. --- ### 1. Functional Overview The device contains **six independent non-inverting buffers**. Its primary purpose is to allow low-voltage logic (like 5V) to drive high-voltage logic (like 15V), or to act as a current booster for driving heavy loads. | Feature | Description | | :--- | :--- | | **Logic Type** | Non-Inverting Buffer / Voltage Converter | | **Number of Elements** | 6 (Hex) | | **Input Protection** | High-current diodes at the inputs allow input voltages to exceed $V_{CC}$ | | **Primary Use** | CMOS-to-TTL conversion and signal driving | --- ### 2. Technical Specifications These values are typical for the 4050B series produced by manufacturers like UTC (Unisonic Technologies). | Parameter | Range/Value | | :--- | :--- | | **Supply Voltage ($V_{DD}$)** | 3.0V to 18V | | **Input Voltage ($V_{IN}$)** | Up to 18V (regardless of $V_{DD}$) | | **Operating Temperature** | -40°C to +85°C | | **Output Current ($I_{OH}/I_{OL}$)** | High sink/source capability (approx. 8mA at 5V) | | **Propagation Delay** | ~45ns to 100ns (depending on $V_{DD}$) | --- ### 3. Pin Configuration (P16 Package) The "P16" in the part number indicates a **TSSOP-16** or **DIP-16** footprint (usually TSSOP for the "R" suffix). | Pin Number | Function | Description | | :--- | :--- | :--- | | **1** | $V_{DD}$ | Positive Power Supply | | **2, 4, 6, 10, 12, 15** | Outputs (1-6) | Buffered Output signals | | **3, 5, 7, 9, 11, 14** | Inputs (1-6) | Logic Input signals | | **8** | $V_{SS}$ | Ground (0V) | | **13, 16** | NC | No Internal Connection | --- ### 4. Part Number Breakdown The suffixing follows standard industry nomenclature for Unisonic Technologies: * **UCD**: CMOS Digital Integrated Circuit. * **4050**: Function code (Hex Non-Inverting Buffer). * **B**: Buffered series (standardized output characteristics). * **L**: Lead-free / RoHS Compliant. * **P16**: 16-pin package (TSSOP-16). * **R**: Tape & Reel packaging. --- ### 5. Key Applications 1. **Level Shifting:** Converting 3.3V or 5V logic signals up to 12V-15V systems. 2. **Current Driving:** Driving LEDs, small relays, or transmission lines that require more current than standard logic outputs provide. 3. **Signal Isolation:** Protecting sensitive microcontroller pins from external noise or higher voltage spikes. ---