## U74AHC1G08-AF5-R: Electronic Specifications & Overview The **U74AHC1G08-AF5-R** is a high-speed, low-voltage CMOS device. Specifically, it is a **2-input AND gate** housed in a small footprint package, typically used for glue logic in compact electronic designs. --- ### 1. General Functional Description The device performs the Boolean function $Y = A \cdot B$. The output ($Y$) is HIGH only when both inputs ($A$ and $B$) are HIGH. If either input is LOW, the output remains LOW. | Input A | Input B | Output Y | | :---: | :---: | :---: | | L | L | L | | L | H | L | | H | L | L | | H | H | H | --- ### 2. Key Technical Specifications Below are the typical electrical characteristics for this specific part number: | Parameter | Specification | | :--- | :--- | | **Logic Family** | AHC (Advanced High-Speed CMOS) | | **Function** | 2-Input AND Gate | | **Supply Voltage ($V_{CC}$)** | 2.0V to 5.5V | | **Operating Temperature** | -40°C to +85°C (Standard) | | **Output Current ($I_{OH}/I_{OL}$)** | ±8 mA at 5V | | **Propagation Delay** | ~7.0 ns at 5V (Typical) | | **Input Threshold** | TTL Compatible (Low power consumption) | --- ### 3. Package and Ordering Information The suffix codes in the part number provide details about the physical packaging: * **U74AHC1G08**: The base functional part (AND Gate). * **AF5**: Refers to the **SOT-25** (also known as SOT-23-5) package type. * **R**: Indicates **Tape & Reel** packaging for automated assembly. #### Pin Configuration (SOT-25) 1. **Pin 1 (B):** Input 2 2. **Pin 2 (A):** Input 1 3. **Pin 3 (GND):** Ground 4. **Pin 4 (Y):** Output 5. **Pin 5 ($V_{CC}$):** Supply Voltage --- ### 4. Application Use Cases * **Signal Gating:** Enabling or disabling a signal path based on a control bit. * **Level Shifting:** Interfacing between different voltage domains (when using specific AHC configurations). * **Industrial Controllers:** Small-scale logic required for sensor synchronization. * **Mobile Devices:** Due to the ultra-small SOT-25 footprint and low power idle state. ---