The **U7SH32L-AF5-R** is a specific electronic component manufactured by **UTC (Unisonic Technologies Co., Ltd)**. It is a high-speed CMOS logic gate, specifically a **2-input OR gate**. Below is a detailed breakdown of its specifications, pinout, and characteristics. --- ### 1. General Overview The U7SH32L-AF5-R belongs to the "U7SH" series, which is equivalent to the industry-standard **74AHCT1G32** or **74VHC1G32**. It performs the Boolean function $Y = A + B$. ### 2. Technical Specifications | Parameter | Specification | | :--- | :--- | | **Logic Function** | 2-Input OR Gate | | **Technology** | Advanced High-Speed CMOS (AHC) | | **Operating Voltage ($V_{CC}$)** | 2.0V to 5.5V | | **Low Power Consumption** | $I_{CC}$ = 1.0 $\mu$A (Max) | | **Package Type** | SOT-25 / SOT-23-5 (AF5) | | **Operating Temperature** | -40°C to +85°C | | **Output Current** | ±8 mA at 5V | --- ### 3. Pin Configuration The "AF5" suffix indicates a **SOT-25** (also known as SOT-23-5) package. | Pin Number | Symbol | Description | | :---: | :--- | :--- | | 1 | B | Data Input | | 2 | A | Data Input | | 3 | GND | Ground (0V) | | 4 | Y | Data Output | | 5 | $V_{CC}$ | Supply Voltage | --- ### 4. Logic Table The OR gate output is **HIGH** (1) if at least one of the inputs is HIGH. | Input A | Input B | Output Y | | :---: | :---: | :---: | | L | L | **L** | | L | H | **H** | | H | L | **H** | | H | H | **H** | --- ### 5. Part Number Decoding The suffix **-R** indicates the packaging method: * **U7SH32**: Part family (2-Input OR Gate). * **L**: Lead-free / Halogen-free plating. * **AF5**: Package code for SOT-25. * **R**: Tape and Reel packaging. ### 6. Key Applications * **Signal Combining**: Merging two control signals into one. * **Level Shifting**: Used in systems with mixed voltage supplies. * **Mobile Devices**: Due to the extremely small footprint and low power consumption. * **Industrial Control**: General logic glue in PCB designs. ---