The **U74ACT08G-P14-R** is a high-speed CMOS logic integrated circuit. Specifically, it belongs to the "ACT" family, which means it is an Advanced CMOS device with TTL-compatible inputs. ### 1. General Specifications | Feature | Details | | :--- | :--- | | **Logic Type** | Quadruple 2-Input AND Gate | | **Technology** | Advanced CMOS (ACT) | | **Input Logic** | TTL-Compatible (0.8V to 2.0V thresholds) | | **Package** | TSSOP-14 (Thin Shrink Small Outline Package) | | **Mounting Type** | Surface Mount (SMD/SMT) | --- ### 2. Technical Characteristics This IC contains four independent 2-input AND gates. The logic function is represented by the equation: **$Y = A \cdot B$**. #### Electrical Parameters * **Supply Voltage ($V_{CC}$):** Typically 4.5V to 5.5V. * **Operating Temperature:** Generally ranges from -40°C to +85°C. * **High Output Current ($I_{OH}$):** -24 mA (Source). * **Low Output Current ($I_{OL}$):** 24 mA (Sink). * **Propagation Delay:** Very low (typically < 10ns), making it suitable for high-speed switching. --- ### 3. Pin Configuration (TSSOP-14) The device follows the standard 14-pin layout for quad gates: | Pin Number | Symbol | Function | | :--- | :--- | :--- | | 1, 2 | 1A, 1B | Inputs for Gate 1 | | 3 | 1Y | Output for Gate 1 | | 4, 5 | 2A, 2B | Inputs for Gate 2 | | 6 | 2Y | Output for Gate 2 | | 7 | GND | Ground (0V) | | 8, 9 | 3Y, 3A | Output/Input for Gate 3 | | 10 | 3B | Input for Gate 3 | | 11 | 4Y | Output for Gate 4 | | 12, 13 | 4A, 4B | Inputs for Gate 4 | | 14 | $V_{CC}$ | Power Supply | --- ### 4. Key Advantages 1. **TTL Compatibility:** Because it is an "ACT" series part, it can interface directly between 5V TTL systems and CMOS systems without level shifters. 2. **Low Power Consumption:** Being CMOS-based, it consumes very little static power compared to bipolar (LS/ALS) logic. 3. **High Noise Immunity:** Provides stable performance in environments with electrical noise. --- ### 5. Part Number Breakdown * **U74:** Product series (Logic). * **ACT:** Advanced CMOS, TTL-compatible inputs. * **08:** Function (Quad 2-Input AND Gate). * **G:** Halogen-free/Green material. * **P14:** TSSOP-14 Package. * **R:** Tape and Reel (Packaging method).