The **LCMXO2-7000HC-4FG484I** is a high-performance, non-volatile Field Programmable Gate Array (FPGA) from the **MachXO2** family developed by Lattice Semiconductor. It is designed to bridge the gap between low-density CPLDs and high-density FPGAs. --- ### 1. Key Technical Specifications | Parameter | Specification | |:---|:---| | **Architecture** | MachXO2 (Ultra-low power, non-volatile) | | **Look-Up Tables (LUTs)** | 6864 | | **Embedded Block RAM (EBR)** | 240 Kbits | | **Distributed RAM** | 54 Kbits | | **User Flash Memory (UFM)** | 256 Kbits | | **Max User I/O** | 334 Pins | | **Package Type** | 484-ball Fine Pitch Ball Grid Array (FPBGA) | | **Operating Voltage (Vcc)** | 2.5V to 3.3V | | **Temperature Range** | Industrial (-40°C to 100°C) | | **Speed Grade** | -4 (Standard performance) | --- ### 2. Core Functional Blocks #### A. Logic Analysis The device contains approximately 7,000 logic cells. These cells are organized into **Programmable Functional Units (PFU)**, which consist of LUTs, registers, and carry logic. This allows for complex combinatorial and sequential logic implementation. #### B. Embedded Hardened IPs One of the standout features of the MachXO2 series is the "Hardened" functions that do not consume programmable logic: * **I2C & SPI Interfaces:** Dedicated hardware for serial communication. * **Timer/Counters:** 16-bit hardened timers. * **PLLs (Phase Locked Loops):** Two PLLs for frequency synthesis and clock management. #### C. Non-Volatile "Instant-On" Unlike SRAM-based FPGAs that require an external flash chip to load configuration at power-up, the LCMXO2 has **on-chip Flash memory**. This allows the device to be active within milliseconds of power application, making it ideal for system control and power sequencing. --- ### 3. Pinout and Physical Characteristics The **FG484** package is a dense grid of 484 solder balls. * **Form Factor:** 23mm x 23mm. * **I/O Versatility:** Supports multiple I/O standards including LVCMOS (3.3V, 2.5V, 1.8V, 1.5V, 1.2V), LVTTL, LVDS, and differential signaling. --- ### 4. Common Applications * **System Control:** Managing power-up sequences for complex SOCs. * **Interface Bridging:** Converting signals between different protocols (e.g., I2C to Parallel). * **I/O Expansion:** Adding more GPIOs to a microcontroller that has run out of pins. * **Glue Logic:** Replacing multiple discrete 74-series logic chips to save PCB space. --- ### 5. Programming and Development To work with this chip, developers typically use: 1. **Software:** Lattice Diamond® design software. 2. **Language:** VHDL or Verilog. 3. **Hardware:** Lattice HW-USBN-2B (USB CrossLink cable) for JTAG programming.