The **LCMXO2-256ZE-2FG484I** (often part of a specific "TRES" or Tape & Reel/Restricted series) belongs to the **MachXO2** family of Ultra-Low Power Programmable Logic Devices (PLDs) manufactured by **Lattice Semiconductor**. Below is a detailed breakdown of its electronic specifications and architecture. --- ### 1. Key Technical Specifications | Feature | Specification | | :--- | :--- | | **Family** | MachXO2 | | **Logic Cells (LUTs)** | 256 | | **User I/O Count** | Up to 334 (depending on package usage) | | **Package Type** | fpBGA-484 (Fine Pitch Ball Grid Array) | | **Voltage Supply (Core)** | 1.14V to 1.26V | | **Operating Temperature** | -40°C to 100°C (Industrial Grade) | | **Memory (Embedded)** | Flash-based (Non-volatile) | | **Speed Grade** | -2 (Standard performance) | --- ### 2. Functional Architecture The MachXO2 series is unique because it bridges the gap between low-density CPLDs (Complex Programmable Logic Devices) and high-performance FPGAs. #### A. Non-Volatile Configuration Unlike standard FPGAs that require an external SPI Flash chip to load code upon power-up, this chip features **on-chip Flash memory**. This allows for "instant-on" capability and higher security, as the configuration bitstream remains inside the chip. #### B. Logic Block Structure * **LUT4 Technology:** The device uses 4-input Look-Up Tables (LUTs) to implement logic functions. * **Distributed RAM:** Some logic slices can be configured as small amounts of RAM for data buffering. #### C. Hardened IP (Intellectual Property) To save logic cells for user tasks, Lattice "hard-wires" common functions into the silicon: * **I2C & SPI Controllers:** Dedicated hardware for serial communication. * **Timer/Counters:** Built-in 16-bit timers. * **Oscillator:** An internal oscillator is provided, eliminating the need for an external crystal in simple applications. --- ### 3. Power Management The "ZE" in the part number denotes the **Ultra-Low Power** version. * **Static Current:** Extremely low leakage, making it ideal for battery-operated handheld devices. * **Sleep Mode:** Supports a power-down state that can be triggered by an external pin. --- ### 4. Part Number Breakdown | Segment | Meaning | | :--- | :--- | | **LCMXO2** | MachXO2 Product Family | | **256** | 256 Look-Up Tables (Logic Density) | | **ZE** | Ultra-Low Power (1.2V Core) | | **2** | Speed Grade (Scale of 1-6, 6 being fastest) | | **FG484** | 484-ball Fine Pitch BGA Package | | **I** | Industrial Temperature Range | | **TRES** | Specific internal suffix (often denoting "Tape & Reel" or special "Restricted" status) | ---