The **LCMXO2-2000HC** is a member of the MachXO2 family from **Lattice Semiconductor**. It is categorized as a "Bridging FPGA" or an "Instant-on, non-volatile PLD" (Programmable Logic Device). It is designed to bridge the gap between low-density CPLDs and high-density FPGAs. --- ### 1. Key Technical Specifications The "2000" in the part number refers to the approximate number of Look-Up Tables (LUTs), which defines the logic capacity of the chip. | Feature | Specification | | :--- | :--- | | **Logic Cells (LUTs)** | 2,112 | | **User Flash Memory** | 64 Kbits | | **Embedded Block RAM (EBR)** | 72 Kbits | | **Distributed RAM** | 16 Kbits | | **Hardened I2C/SPI/Timer** | Yes (Hard IP) | | **Operating Voltage** | 2.5V to 3.3V (HC Series) | | **Package Options** | TQFP, WLCSP, ftBGA | --- ### 2. Core Architectural Components #### A. Logic Blocks (PFUs) The device consists of **Programmable Functional Units (PFU)**. Each PFU contains LUTs and registers that can be configured to perform combinatorial logic or act as distributed RAM/ROM. #### B. Embedded Hard IP One of the standout features of the MachXO2 series is the inclusion of "Hardened" functions. Instead of using up your 2,112 LUTs to build standard interfaces, the chip has dedicated silicon for: * **I2C Interfaces** * **SPI Interfaces** * **Timer/Counters** * **WISHBONE Bus** interface for internal connectivity. #### C. Non-Volatile Configuration Unlike high-end FPGAs that require an external Flash chip to load code upon power-up, the LCMXO2-2000HC has **on-chip Flash memory**. * **Instant-on:** The device is operational in microseconds. * **Security:** Since the configuration stays inside the chip, it is harder to intercept or "sniff" the bitstream during boot. --- ### 3. "HC" vs "ZE" Variants In the MachXO2 family, the suffix indicates the power/performance profile: * **HC (High Connection/High Speed):** Optimized for performance with a standard voltage supply (2.5V - 3.3V). * **ZE (Zero Power):** Optimized for ultra-low power consumption (1.2V core), typically for battery-operated devices. --- ### 4. Typical Applications Because of its small size and hardened communication ports, it is frequently used for: 1. **System Control:** Power sequencing and reset logic on server motherboards. 2. **Interface Bridging:** Converting signals between different standards (e.g., LVDS to CMOS). 3. **I/O Expansion:** Adding more GPIO pins to a microcontroller that has run out of pins. 4. **Display Driving:** Driving small character or graphic LCDs. --- ### 5. Programming and Development To work with this part, you typically use: * **Software:** Lattice Diamond design software. * **Language:** VHDL, Verilog, or Schematic Capture. * **Hardware:** Lattice USB Download Cable (JTAG).