The **LCMXO2-2000HC-5TG100C** is a member of the **MachXO2** family of Field Programmable Gate Arrays (FPGAs) manufactured by **Lattice Semiconductor**. It is a popular low-power, instant-on device designed for system control, interface bridging, and logic expansion. --- ## 1. Part Number Breakdown Understanding the nomenclature helps identify the specific capabilities of this component: | Code Segment | Description | | :--- | :--- | | **LCMXO2** | MachXO2 Family (Ultra-low power, Flash-based) | | **2000** | Logic Density (Approx. 2112 Look-Up Tables / LUTs) | | **HC** | High Performance / High Voltage (1.2V, 2.5V, or 3.3V core support) | | **5** | Speed Grade (Standard speed; range is 4 to 6, where 6 is fastest) | | **TG100** | Package Type: 100-pin TQFP (Thin Quad Flat Pack) | | **C** | Temperature Grade: Commercial (0°C to +85°C) | --- ## 2. Technical Specifications The internal architecture is optimized for low-cost, low-power applications: ### Logic & Memory * **LUTs:** 2112 Look-Up Tables. * **Embedded Block RAM (EBR):** 72 Kbits. * **User Flash Memory (UFM):** 64 Kbits (for non-volatile data storage). * **Distributed RAM:** 16 Kbits. ### Input / Output (I/O) * **Max User I/O:** 79 pins. * **I/O Standards:** Supports LVCMOS (3.3, 2.5, 1.8, 1.5, 1.2), LVTTL, PCI, and differential signaling like LVDS. ### Hardened IP (Internal Functions) Unlike many FPGAs, the MachXO2 series includes "hardened" (built-in) common functions to save logic space: * **I2C / SPI Interfaces:** Dedicated hard-wired controllers. * **Timer/Counters:** Built-in 16-bit counters. * **PLL:** 1 Phase-Locked Loop for clock frequency synthesis and management. --- ## 3. Key Features * **Instant-On:** Because it is Flash-based, the configuration loads internally in microseconds, meaning the chip is ready almost immediately after power-up. * **Non-Volatile:** No external configuration PROM is required, saving PCB space and reducing costs. * **Low Power:** Features "Sleep Mode" and "Standby Mode" to minimize current draw in battery-powered applications. * **In-System Programmable:** Can be updated via JTAG or I2C while mounted on the board. --- ## 4. Common Applications Due to its small size and integrated features, this part is frequently used for: 1. **System Reset & Power Sequencing:** Managing the power-up order of CPUs and ASICs. 2. **I/O Expansion:** Adding extra pins to microcontrollers. 3. **Interface Bridging:** Converting signals between different protocols (e.g., SPI to Parallel). 4. **Display Driving:** Handling timing for small LCD screens.