The **LCMXO2-256UHE-4UWG25CTRES** is a specific integrated circuit belonging to the **MachXO2** family, manufactured by **Lattice Semiconductor**. This part is an Ultra-Low Power Field Programmable Gate Array (FPGA) designed for system control and interface bridging applications. --- ### 1. Part Number Breakdown Understanding the specific features of this device requires deconstructing its nomenclature: | Code Section | Meaning | Details | | :--- | :--- | :--- | | **LCMXO2** | Product Family | MachXO2 (Bridging & Control FPGA) | | **256** | Look-Up Tables (LUTs) | 256 LUTs (Small density) | | **UHE** | Ultra High Efficiency | Optimized for power consumption | | **4** | Speed Grade | Standard performance grade (4) | | **UWG25** | Package Type | Wafer-Level Chip Scale Package (WLCSP), 25-ball | | **C** | Temperature Grade | Commercial (0°C to 85°C) | | **TRES** | Special Identifier | Often denotes Tape & Reel or specific internal revision | --- ### 2. Key Technical Specifications This device is characterized by its extremely small footprint and low power requirements. * **Logic Density:** 256 Look-Up Tables (LUT4). * **User I/O:** 18 Programmable I/O pins. * **Memory:** * **User Flash Memory (UFM):** 64 Kbits for non-volatile storage. * **Embedded Block RAM (EBR):** 0 Kbits (this specific low-density model relies on distributed RAM). * **Voltage Support:** 1.2V core voltage for ultra-low power operation. * **Configuration:** "Instant-on" capability via on-chip Flash memory. --- ### 3. Core Features * **Non-Volatile:** Unlike many FPGAs, it does not require an external boot PROM; the configuration is stored internally. * **Hardened IP:** Includes built-in hard logic for common functions like **I2C, SPI, and Timer/Counters**, which saves LUTs for custom logic. * **Sleep Mode:** Features a unique "Power-down" mode that reduces current consumption to micro-amp levels, ideal for battery-powered devices. * **Bridging Capability:** Excellent for level shifting, bus interface expansion, and glue logic. --- ### 4. Typical Applications Due to the tiny **WLCSP-25** package (which is roughly 2.1mm x 2.1mm), this part is commonly found in: * **Smartphones & Tablets:** For sensor aggregation and I/O expansion. * **Wearable Electronics:** Where PCB space is at a premium. * **Medical Devices:** Small-scale portable diagnostic tools. * **Power Management:** Serving as a power-up sequence controller for larger processors. ---