The **M7R74FCJ-R** is a specific part number typically associated with **Hynix (SK Hynix)** semiconductor components, specifically within their **NAND Flash Memory** or **eMMC (Embedded MultiMediaCard)** product lines. Below is a breakdown of the technical aspects and electronic characteristics of this component. --- ### 1. Component Overview This part is a high-density non-volatile storage solution commonly found in mobile devices (smartphones, tablets) and embedded systems. It integrates a NAND flash memory and a controller in a single package. | Feature | Description | | :--- | :--- | | **Manufacturer** | SK Hynix | | **Category** | Integrated Circuit (IC) / Memory | | **Memory Type** | NAND Flash (likely eMMC or UFS) | | **Interface** | HS-MMC (High Speed MultiMediaCard) | | **Package** | FBGA (Fine-pitch Ball Grid Array) | --- ### 2. Key Electronic Characteristics While exact internal specs can vary by revision, the "M7R" series generally follows these electronic parameters: * **Voltage Supply (Vcc/VccQ):** * **Vcc (Core):** Typically 2.7V to 3.6V for the NAND operation. * **VccQ (I/O):** Dual voltage support (1.7V to 1.95V or 2.7V to 3.6V) to reduce power consumption during data transfer. * **Data Bus Width:** Supports 1-bit, 4-bit, or 8-bit modes. * **Clock Frequency:** Supports high-frequency operation (up to 200MHz in HS400 mode for eMMC 5.0/5.1). * **Operating Temperature:** Generally rated for Industrial or Consumer ranges (-25°C to +85°C). --- ### 3. Internal Block Diagram Logic The device functions through three primary internal blocks: 1. **NAND Flash Array:** The physical storage area where data is kept even when power is removed. 2. **Controller:** Manages Wear Leveling, Bad Block Management (BBM), and Error Correction Code (ECC). 3. **Host Interface:** Translates standard commands from the CPU (like "Write Sector") into specific NAND operations. --- ### 4. Common Application Areas Due to its compact FBGA form factor and integrated controller, it is used in: * **Smartphones:** Primary OS and user data storage. * **Automotive Infotainment:** Storing maps and system firmware. * **IoT Gateways:** High-reliability data logging. * **Smart TVs:** Storing applications and buffered media. --- ### 5. Part Number Decoding (Typical Hynix Logic) * **M:** Memory Product * **7:** Flash Type / Density Code * **R74:** Specific design/density configuration (often 8GB, 16GB, or 32GB depending on the generation) * **FCJ:** Package and Speed Grade code * **-R:** Lead-free/RoHS compliant and Tape & Reel packaging