The **LCMXO2-2000HC-6TG144C** is a non-volatile, low-power FPGA (Field Programmable Gate Array) from the **MachXO2** family, manufactured by Lattice Semiconductor. This specific part is widely used in bridge logic, system control, and interface expansion. --- ### 1. Part Number Breakdown Understanding the nomenclature helps identify the chip's electrical characteristics: | Code Segment | Description | | :--- | :--- | | **LCMXO2** | MachXO2 Product Family | | **2000** | Density: Approximately 2112 Look-Up Tables (LUTs) | | **HC** | High Performance / 2.5V to 3.3V Operation | | **6** | Speed Grade (higher is faster, 6 is standard high speed) | | **TG144** | Package Type: 144-pin TQFP (Thin Quad Flat Pack) | | **C** | Grade: Commercial Temperature (0°C to 85°C) | --- ### 2. Key Internal Components The LCMXO2 series is unique because it blends features of both CPLDs (instant-on, non-volatile) and FPGAs (high density, flexible routing). #### A. Logic Architecture * **LUTs (Look-Up Tables):** 2112 LUT4 units provide the combinatorial logic capacity. * **Flash Memory:** It features on-chip "User Flash Memory" (UFM) for storing configuration data or small amounts of user data, eliminating the need for an external boot PROM. * **Embedded RAM:** Includes dedicated Block RAM (EBR) for data buffering and FIFO operations. #### B. Clocking and I/O * **PLLs:** Includes 1 Phase-Locked Loop for frequency synthesis and clock management. * **I/O Count:** 111 User I/Os available on the 144-pin package. * **Hardened IP:** Includes dedicated "Hardened" I2C, SPI, and Timer/Counter blocks. This saves LUT resources because these common functions are built directly into the silicon. --- ### 3. Technical Specifications | Parameter | Specification | | :--- | :--- | | **Core Voltage (Vcc)** | 2.5V to 3.3V | | **Number of LUTs** | 2,112 | | **Distributed RAM** | 16 Kbits | | **EBR (Block RAM)** | 72 Kbits | | **User Flash Memory** | 64 Kbits | | **Maximum I/O Pins** | 111 | | **Package Dimensions** | 20mm x 20mm (0.5mm lead pitch) | --- ### 4. Typical Applications Due to its low power consumption and "instant-on" capability (it starts working microseconds after power-up), it is commonly found in: 1. **System Reset & Sequencing:** Managing power rails for larger CPUs/SoCs. 2. **Bus Bridging:** Converting signals between different protocols (e.g., I2C to SPI, or LVDS to CMOS). 3. **IO Expansion:** Adding more GPIOs to a microcontroller that has run out of pins. 4. **Display Driving:** Handling small character or graphic LCD interfaces.