The **LCMXO2-2000HC-4TG144I** is a low-power, instant-on FPGA (Field Programmable Gate Array) from the **Lattice MachXO2** family. It is widely used in bridge logic, system control, and interface expansion applications due to its built-in flash memory and high I/O density. --- ## 1. Technical Specifications Table | Feature | Specification | | :--- | :--- | | **Manufacturer** | Lattice Semiconductor | | **Logic Cells (LUTs)** | 2,112 | | **User I/O Count** | 111 | | **Embedded Block RAM** | 74 Kbits | | **Flash Memory** | 74 Kbits User Flash Memory (UFM) | | **Voltage Supply (Core)** | 2.375V ~ 3.465V | | **Package / Case** | 144-TQFP (Thin Quad Flat Pack) | | **Operating Temperature** | -40°C ~ 100°C (Industrial Grade) | | **Speed Grade** | -4 (Standard Performance) | --- ## 2. Key Architectural Features ### A. Non-Volatile "Instant-On" Technology Unlike traditional FPGAs that require an external SPI Flash to load the bitstream upon power-up, the MachXO2 series integrates the configuration memory on-chip. - **Benefit:** The device is operational in microseconds. - **Security:** It is harder to intercept the configuration data since it remains inside the chip. ### B. Hardened IP Cores The silicon includes dedicated "hard" blocks for common functions, which saves logic cells (LUTs) for your custom code: - **I2C & SPI:** Dedicated controllers for peripheral communication. - **Timer/Counters:** Built-in hardware timers. - **PLLs (Phase Locked Loops):** One PLL is included for frequency synthesis and clock management. ### C. Low Power Consumption The "HC" in the part number denotes a "High Performance" variant (Standard 2.5V/3.3V supply), but the MachXO2 architecture is specifically designed for low static power, making it suitable for handheld or battery-operated industrial equipment. --- ## 3. Pinout and Physical Characteristics The **TG144** package is a 144-pin TQFP. This is a leaded package, which is generally easier to prototype and hand-solder compared to BGA (Ball Grid Array) packages. ### Typical Pin Assignments: 1. **VCC:** Core voltage power pins. 2. **VCCIO (0-3):** Multiple I/O banks that can be powered at different voltages (e.g., Bank 0 at 3.3V, Bank 1 at 1.8V). 3. **JTAG (TDI, TDO, TCK, TMS):** Programming and debugging interface. 4. **Config Pins:** Pins used to trigger re-programming from the internal flash. --- ## 4. Typical Applications * **System Control:** Power sequencing, reset generation, and status monitoring. * **Interface Bridging:** Converting signals between different standards (e.g., I2C to Parallel, SPI to UART). * **I/O Expansion:** Adding more GPIOs to a microcontroller that has run out of pins. * **Display Driving:** Driving small character or graphic LCDs.