LFE3-70EA-6FN1156C

The LFE3-70EA-6FN1156C is a Lattice ECP3 family FPGA device featuring a 67,000‑element logic fabric and approximately 4.526 Mbits of embedded RAM. Built on the ECP3 architecture, it combines DSP-optimized resources, embedded SERDES, and flexible I/O to address high-performance, cost-sensitive system designs.

This device targets applications requiring dense logic, substantial on-chip memory, and abundant I/O — such as high-speed communications, signal processing, and interfacing tasks — while offering commercial-grade operation and RoHS compliance.

Key Features

• Core Logic  67,000 logic elements and 8,375 CLBs provide a substantial programmable fabric for complex logic and control implementations.
• Embedded Memory  Approximately 4.526 Mbits of on-chip RAM (embedded block RAM) plus distributed RAM support for buffering, FIFOs, and scratch storage.
• sysDSP and DSP Resources  ECP3 family sysDSP slice architecture provides cascadable DSP slices and high-precision MAC operations to accelerate multiply-accumulate workloads.
• High‑Speed SERDES  Family-level embedded SERDES support with data rates up to 3.2 Gbps and multi-channel capability (up to 16 channels per device) for serial interfaces and protocol bridging.
• Flexible I/O  490 user I/Os with programmable sysI/O buffer options and a wide range of supported I/O standards for interfacing with modern peripherals and memory devices.
• Package & Mounting  Surface-mount 1156-FPBGA package (35 × 35 mm) providing a high-pin-count solution for dense system integration.
• Power & Temperature  Core supply range 1.14 V to 1.26 V; commercial operating temperature range 0 °C to 85 °C.
• System Features  On-chip PLLs/DLLs, configurable boot options, and configuration-friendly features from the ECP3 family to support complex system-level designs.
• Compliance  RoHS‑compliant manufacturing.

Typical Applications

• High‑Speed Communications  Protocol bridging, line cards, and transceiver front-ends that leverage embedded SERDES and multi‑channel serial connectivity.
• Video and Broadcast Systems  Interfaces and processing for video transport standards and SMPTE‑class links, using on-chip memory and DSP resources for buffering and real‑time processing.
• Signal Processing and DSP  Accelerated filtering, FFTs, and MAC-intensive workloads using sysDSP slices and dedicated multiplier resources.
• Memory Interfaces and Controllers  Source‑synchronous I/O and clocking resources for building DDR/parallel memory interfaces and controllers.

Unique Advantages

• High-density programmable fabric: 67,000 logic elements and 8,375 CLBs allow consolidation of complex logic into a single device, reducing board-level component count.
• Substantial on-chip memory: Approximately 4.526 Mbits of embedded RAM supports large buffers and reduces reliance on external memory for many designs.
• Embedded SERDES and multi‑channel support: Integrated high-speed serial capabilities enable compact implementations of multi‑lane communication links.
• Flexible I/O capability: 490 user I/Os with programmable buffer options simplify interfacing to diverse peripherals and standards.
• System integration features: On-chip PLLs/DLLs and configurable boot options streamline system-level design and bring-up.
• Commercial-grade, RoHS‑compliant device: Suited for mainstream electronics and production environments requiring standard commercial temperature operation.

Why Choose LFE3-70EA-6FN1156C?

The LFE3-70EA-6FN1156C positions itself as a high-capacity, integration-friendly FPGA within the Lattice ECP3 family, combining a large logic array, meaningful on-chip RAM, and extensive I/O connectivity in a 1156‑ball FPBGA package. Its family heritage provides DSP slices, embedded SERDES, and clocking resources that help reduce external components and accelerate time-to-market for communication, video, and DSP-centric applications.

This device is well suited for design teams seeking a commercially graded FPGA with strong on-chip memory, plentiful user I/Os, and built-in serial and DSP capabilities, backed by the broader ECP3 architecture and development ecosystem.

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