company blog about Supply Lattice iCE40 HX Series High-Performance FPGA:HX1K,HX4K,HX8K

Supply Lattice iCE40 HX Series High-Performance FPGA:HX1K,HX4K,HX8K

Shenzhen Mingjiada Electronics Co., Ltd., a globally renowned distributor of electronic components, specialises in providing a wide range of high-quality electronic components and assemblies. With years of industry experience, a stock of over 2 million SKUs and an international supply chain network, the company offers a ‘one-stop’ procurement service for switching products to customers across multiple industries.

Service Advantages

Inventory of 2 million SKUs, ensuring rapid response to demand

Ultra-short lead times of 1–3 days

Highly competitive pricing strategy

100% genuine product guarantee

ISO 9001:2014 Quality Management System certification

Comprehensive after-sales service system

I. Overall Core Positioning and General Core Advantages of the iCE40 HX Series FPGAs

Distinct from the LP (Low Power) series within the same family, the Lattice iCE40 HX series focuses on high-performance computing, high-speed timing convergence and high-bandwidth interface drive capabilities. Whilst retaining the iCE40 series’ inherent characteristics of miniaturisation, non-volatile configuration and low static power consumption, it prioritises optimising the operating speed of core logic units, the clock control precision of phase-locked loops (PLLs) and the high-speed drive performance of I/O interfaces. Compared to the previous-generation iCE65 series devices, overall operating speed has increased by over 80%, delivering a dual advantage of both a significant performance leap and controlled power consumption and cost. All three HX models in the series utilise a unified, mature 40nm CMOS mass production process, offering stable and reliable manufacturing and a well-stocked supply chain. They are suitable for diverse application scenarios, including high-volume mass production in consumer electronics, long-term stable operation in industrial equipment, and lightweight auxiliary control in automotive applications.

In terms of general hardware configuration, the entire iCE40 HX series comes standard with three core hardware modules: Embedded Block RAM (EBR), Non-Volatile Configuration Memory (NVCM) and a high-precision Phase-Locked Loop (PLL). This enables independent configuration, boot-up, clock division and multiplication control without the need for external memory or clock chips, significantly simplifying peripheral circuit design and reducing the complexity of PCB layout and routing, as well as overall material costs. Additionally, the chip integrates hard I2C and SPI communication cores, supporting flexible online device configuration and firmware upgrades via the SPI interface. It is compatible with mainstream high-definition display and image transmission interfaces such as RGB, 7:1 LVDS, MIPI DPI/DBI, and other mainstream high-definition display and image transmission interfaces. Programmable low-swing differential I/O supports high-speed differential signal transmission, whilst the I/O circuitry features a dynamic power-down function to precisely manage power consumption, making it suitable for both battery-powered portable devices and industrial equipment requiring continuous power supply. Furthermore, the entire series offers a variety of compact, low-cost packaging options with a streamlined pin layout and minimal board space requirements, making it perfectly suited to the design needs of various space-constrained modular embedded devices.

II. Detailed Explanation of Core Features and Ideal Applications for the Three Specific Models

1. iCE40 HX1K: Entry-level, high value for money; the preferred choice for lightweight logic control

As the entry-level model in the HX series, the iCE40 HX1K features 1,280 core logic cells. With its streamlined, practical hardware configuration and low procurement costs, it offers the best value for money for programmable logic designs with modest resource requirements. This model offers a wide range of package options, including compact packages such as VQ100 and CB132. With minimal pin footprint and simple PCB layout, hardware development can be completed rapidly without the need for complex power supply design or routing optimisation. The chip features high-current I/O pins capable of directly driving peripherals such as RGB colour lights and white LED indicators, eliminating the need for additional driver chips. This makes it ideal for developing basic functions such as lighting control, button debouncing, level conversion and simple I/O expansion.

In practical applications, the HX1K requires no complex timing constraints or logic compilation, resulting in a short development cycle and low debugging difficulty. It is particularly well-suited for lightweight, low-complexity scenarios such as introductory FPGA development training, simple functional expansion in consumer electronics, signal acquisition and pre-processing for smart home sensors, small toy electronic control boards, and simple I/O redundancy expansion in industrial equipment. For projects that merely require replacing traditional discrete logic gates, simplifying the load on microcontroller peripherals, or achieving basic digital timing alignment, the HX1K fully meets core requirements. It enables flexible customisation of programmable logic at an extremely low hardware cost, eliminating the issue of resource redundancy and waste associated with high-end FPGAs.

2. iCE40 HX4K: A well-balanced, all-round mid-range model and the mainstay for standard embedded programmable logic

The iCE40 HX4K is the well-balanced mid-range model in the series, equipped with 3,520 logic cells. Compared to the HX1K, it offers a significant increase in logic processing power, whilst the embedded block RAM capacity and number of I/O interfaces have been expanded accordingly. It strikes an excellent balance between performance and cost, making it the primary mass-production model for commercial embedded programmable logic projects. This model features optimised timing convergence performance and supports standard high-speed signal timing matching. Its standard high-performance PLL enables precise clock multiplication, division and phase adjustment, perfectly meeting the requirements for communication and synchronised timing control across various medium-speed peripheral interfaces. It is compatible with standard communication protocols such as SPI, I2C and UART, whilst also supporting basic high-definition display interface drivers.

The HX4K core is suited to applications of moderate complexity, covering scenarios such as real-time pre-processing and noise filtering of industrial sensor data, touchscreen interface conversion and signal analysis in consumer electronics, high-definition small-size display drivers for portable devices, data link conversion for IoT gateways, simple motor speed control timing, and multi-chip communication bus adaptation in embedded systems. It addresses the shortcomings of the HX1K, namely insufficient logic resources and an inability to support medium-scale data processing, whilst avoiding the issues of the HX8K, such as high costs and resource redundancy. It is suitable for high-volume commercial mass production projects, balancing development flexibility, operational stability and mass production cost-effectiveness.

3. iCE40 HX8K: Flagship high-performance model, dedicated to high-speed data and high-definition image processing

The iCE40 HX8K is the flagship high-performance model in the iCE40 HX series. Equipped with 7,680 top-tier logic units, dual high-precision phase-locked loops and large-capacity embedded block RAM, and maximised high-speed differential I/O interface performance, it offers the best computational capability, interface bandwidth and timing control precision among the three models. It is tailor-made for highly complex, high-real-time and high-speed data processing scenarios. The chip supports parallel transmission of multiple high-speed differential signals, reliably supporting high-definition video capture, image processing, image scaling and format conversion. It is compatible with the parsing and driving of high-speed, high-definition image interface protocols such as LVDS and MIPI, and boasts excellent multi-clock-domain coordination capabilities, enabling the synchronised management of multiple high-speed peripherals operating in parallel.

The HX8K is primarily targeted at high-end embedded visualisation equipment, industrial high-definition vision inspection and auxiliary control, portable high-definition display terminals, high-speed data acquisition and real-time caching transmission, high-end consumer electronics image signal pre-processing, and multi-channel high-speed timing synchronisation control systems. For complex projects requiring large-scale logic operations, high-volume data caching, high-speed interface interconnections, and real-time coordinated control of multiple peripherals, the HX8K, with its ample logic resources and robust hardware configuration, enables the full implementation of functionality without the need to simplify the design architecture. Furthermore, leveraging Lattice’s mature 40nm process technology, it maintains controllable power consumption even under high-performance operation, avoiding issues such as excessive heat generation or power consumption exceeding specifications, thereby meeting the requirements of industrial-grade and high-end consumer-grade equipment designed for long-term continuous operation.

III. Summary of Core Principles for Selecting Models in the iCE40 HX Series

When selecting a Lattice iCE40 HX series FPGA for actual projects, the four core principles to follow are: matching requirements, eliminating redundancy, prioritising cost, and ensuring performance suitability. There is no need to blindly choose high-end models that increase project costs, nor should entry-level models be selected that result in insufficient logic resources and an inability to implement required functions. For projects requiring only basic I/O expansion, simple logic control, or entry-level training and development, the HX1K should be prioritised to minimise hardware costs; For standard mass-production projects involving conventional embedded timing control, interface conversion and moderate data pre-processing, the HX4K is the preferred choice, delivering the optimal balance between performance and cost; for high-complexity, advanced scenarios such as high-definition image processing, high-speed data transmission and complex coordinated control of multiple peripherals, the HX8K is essential to ensure high-performance, stable operation and the full implementation of all functions. The software and hardware development ecosystems for all three models are fully unified. Development tools, compilation workflows and peripheral circuit design specifications are common across the range. Once a model has been selected, there is no need to re-adapt the development environment; project iterations and upgrades require only the replacement of chips within the same series. This significantly reduces the costs associated with product iteration and hardware revisions, making it the optimal tiered solution for small- to medium-scale FPGA programmable logic design.