The **LCMXO2-256HC-6TG100C** is a low-density FPGA (Field Programmable Gate Array) from the **Lattice MachXO2** family. It is specifically designed for control-path applications, bridging, and I/O expansion in systems where power consumption and cost are critical factors. --- ## 1. Technical Specifications | Parameter | Value | | :--- | :--- | | **Manufacturer** | Lattice Semiconductor | | **Series** | MachXO2 | | **Logic Cells (LUTs)** | 256 | | **Embedded Flash** | Instant-on non-volatile configuration | | **User I/O Count** | 78 I/Os | | **Speed Grade** | -6 (Standard Performance) | | **Voltage Supply** | 2.375V to 3.465V (Core) | | **Operating Temperature** | 0°C to 85°C (Commercial) | | **Package / Case** | 100-TQFP (Thin Quad Flat Pack) | --- ## 2. Key Electronic Features ### A. Non-Volatile Architecture Unlike traditional FPGAs that require an external SPI Flash to load the configuration upon power-up, the MachXO2 series has **on-chip Flash memory**. * **Instant-on:** The device is operational within milliseconds. * **Security:** Bitstream encryption protects intellectual property. ### B. Hardware Hardened IP To save logic cells for user-defined tasks, the chip includes dedicated hardware blocks for common functions: * **I2C / SPI Interfaces:** Hardened controllers for peripheral communication. * **Timer/Counters:** Built-in 16-bit timers. * **Internal Oscillator:** Provides a clock source without needing an external crystal. ### C. Low Power Consumption The "HC" designation indicates a high-performance CMOS process optimized for low static power. It is ideal for battery-operated handheld devices. --- ## 3. Pinout and Physical Characteristics The **100-TG100** package is a surface-mount TQFP with 100 pins. This package is popular because: * It is easier to solder manually or via reflow compared to BGA (Ball Grid Array) packages. * The 0.5mm lead pitch provides a balance between high I/O density and PCB manufacturing ease. --- ## 4. Typical Applications * **System Control:** Managing power-up sequences and "Glue Logic." * **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. * **LED/Display Control:** Managing simple user interfaces. ---