LCMX02-640HC-4TG100T

The LCMX02-640HC-4TG100T (MachXO2-640HC) from Lattice Semiconductor is an ultra-low power, instant-on non-volatile FPGA belonging to the MachXO2 family. Designed for low-cost, high-volume consumer and system applications, this device combines the flexibility and breadth of FPGA resources with the instant-on, non-volatile characteristics traditionally associated with CPLDs. Built on a 65nm non-volatile low-power process technology, the MachXO2-640HC features 640 Look-Up Tables (LUTs) of programmable logic, 18 Kbit of embedded block RAM (EBR) organized as two 9 Kbit blocks, 5 Kbit of distributed RAM, and User Flash Memory (UFM) for non-volatile data storage. The device provides 78 user I/O pins across four I/O banks, supporting multiple I/O standards including LVTTL, LVCMOS (1.2V, 1.5V, 1.8V, 2.5V, 3.3V), and LVDS. Pre-engineered hardened IP blocks include an SPI controller, I²C controller, and timer/counter, reducing design effort for common interface functions. PLLs provide flexible clock generation and management. The device supports advanced configuration features including dual-boot capability and TransFR™ (Transparent Field Reconfiguration) technology, allowing reconfiguration without interrupting system operation. With a 1.84mA typical operating supply current and ultra-low standby power, the MachXO2-640HC is ideal for battery-powered and energy-sensitive applications. Available in a 100-pin TQFP package with commercial temperature grade (0°C to 85°C), speed grade 4, this device is well-suited for consumer electronics, industrial control, system management, glue logic, and cost-sensitive high-volume applications.

The LCMX02-640HC operates as a non-volatile FPGA with embedded memory and hardened IP blocks. Its architectural framework includes: 1) Programmable Logic Array: 640 4-input Look-Up Tables (LUTs) organized into 80 Logic Array Blocks (LABs) provide the core programmable logic fabric. Each LUT can implement any 4-input combinational function, and can also be configured as distributed RAM or shift register. Flip-flops associated with each LUT support registered or combinatorial outputs. 2) Embedded Block RAM (EBR): Two 9 Kbit embedded block RAM blocks provide true dual-port memory for data buffering, FIFO implementation, and general-purpose data storage. EBR can be configured in various widths and depths, including single-port, dual-port, and FIFO modes. 3) User Flash Memory (UFM): Non-volatile flash memory stores user data, configuration settings, or calibration coefficients. UFM retains data through power cycles and can be accessed via the user logic design. 4) Hardened IP Blocks: Hardened (silicon-proven, non-LUT) peripheral blocks include an SPI controller, I²C controller, and timer/counter. These are accessed through the internal system bus and provide efficient implementation of common interface functions without consuming LUT resources. 5) Clock Management: PLLs generate precise clock frequencies from reference clock inputs, supporting clock multiplication, division, and phase shifting. Multiple clock domains are supported for complex timing requirements. 6) I/O Structure: Four I/O banks with independent supply voltages support multiple I/O standards. Programmable low-swing differential I/Os are available. Each I/O pin includes input and output registers, programmable pull-up/pull-down, and slew rate control. 7) Configuration Memory: Non-volatile configuration memory stores the FPGA programming data. On power-up, the configuration is loaded into SRAM-based programming latches, providing instant-on operation. JTAG, SPI, and dual-boot configuration options are supported.

• Consumer electronics power management and system control
• Board-level glue logic and bus bridging in embedded systems
• Power sequencing, reset generation, and system initialization
• Display panel timing control and interface conversion
• Industrial sensor interfaces and control logic
• Communication protocol bridging and interface translation
• Cost-sensitive high-volume IoT and consumer devices
• Handheld and battery-powered portable electronics