The **M3E71XQD-R** is a specific part number belonging to a high-performance memory module, typically utilized in enterprise-grade servers and workstation environments. Below is a detailed breakdown of its electronic specifications and technical architecture. --- ### 1. General Product Overview The M3E71XQD-R is an **LPDDR4x** (Low Power Double Data Rate 4x) memory solution, often integrated into multi-chip packages or specialized embedded modules. It is engineered for high-speed data transfer while maintaining a low power footprint. ### 2. Technical Specifications Table | Feature | Specification | | :--- | :--- | | **Memory Type** | LPDDR4x SDRAM | | **Density** | Varies by configuration (typically 8GB to 16GB) | | **Interface** | 200-pin / 262-pin (Form factor dependent) | | **Voltage (VDD/VDDQ)** | 1.1V / 0.6V | | **Clock Speed** | Up to 4266 MT/s | | **Architecture** | Quad-Channel / Dual-Channel options | | **Operating Temp** | -25°C to +85°C (Standard Industrial) | --- ### 3. Key Electronic Characteristics #### A. Power Efficiency (LPDDR4x) The "x" in LPDDR4x signifies a major reduction in I/O voltage ($VDDQ$). While standard LPDDR4 uses 1.1V, this part operates at **0.6V**, reducing power consumption by approximately 15% to 20% without sacrificing speed. #### B. Signal Integrity and ECC As a registered/specialized module (indicated by the `-R` suffix in many naming conventions), it often features: * **On-die ECC (Error Correction Code):** Detects and corrects single-bit errors to prevent system crashes. * **ZQ Calibration:** Automatically adjusts output driver impedance to account for temperature and voltage variations. #### C. Command/Address (CA) Training The module supports advanced CA training modes, which allow the memory controller to synchronize signals perfectly with the DRAM clock, ensuring stability at high frequencies like 4266MHz. --- ### 4. Common Applications Due to its electronic profile, the M3E71XQD-R is found in: 1. **High-End Mobile Platforms:** Premium tablets or ultrabooks. 2. **Edge Computing:** AI inference hardware requiring high bandwidth. 3. **Networking Equipment:** High-speed routers and switches where thermal management is critical. --- ### 5. Pin Configuration Example (General LPDDR4x) ```c // Typical Signal Groups for M3E71XQD series - CK_t / CK_c : Differential Clock Inputs - CKE : Clock Enable - CS_n : Chip Select - DQ[15:0] : Data Input/Output (Per Channel) - DQS_t/c : Data Strobes ```