LFEC3E-4TN144I

The LFEC3E-4TN144I is an EC-family FPGA from Lattice Semiconductor designed to deliver mainstream FPGA functionality for cost-sensitive and industrial applications. It combines LUT-based logic fabric, flexible memory resources, and programmable I/O in a compact 144-LQFP surface-mount package.

With 3,100 logic elements, 97 user I/Os and roughly 56 Kbits of on-chip RAM, this device targets embedded control, system integration and memory-interfacing roles where moderate logic density, flexible interfaces and industrial temperature range are required.

Key Features

• Core architecture  LUT-based FPGA fabric providing 3,100 logic elements suitable for moderate-complexity designs.
• Logic resources  384 logic blocks (PFUs/PFFs) to structure logic and routing across the device.
• On-chip memory  Total RAM of 56,320 bits (approximately 56 Kbits) for distributed and embedded memory needs.
• I/O flexibility  97 I/Os with programmable sysI/O™ buffer support for a wide range of interfaces, including LVCMOS (3.3/2.5/1.8/1.5/1.2), LVTTL, SSTL, HSTL, PCI, LVDS, Bus-LVDS, LVPECL and RSDS.
• Dedicated memory support  Family-level support for DDR memory interfaces (up to DDR400) to simplify external memory integration.
• Clocking  Includes up to two sysCLOCK™ analog PLLs for clock multiply, divide and phase shifting.
• Power  Operates within a 1.14 V to 1.26 V supply range (1.2 V nominal operation).
• Package & mounting  144-LQFP (supplier package: 144-TQFP, 20 × 20 mm) surface-mount package for compact board integration.
• Temperature & grade  Industrial grade device rated for operation from −40 °C to 100 °C.
• Compliance  RoHS compliant.

Typical Applications

• Industrial control  Embedded control and supervisory functions that require industrial temperature range and moderate logic density.
• System glue logic  Protocol bridging, bus interfacing and custom logic between subsystems using flexible I/O options.
• Memory interface  External memory controller or buffering applications leveraging the family’s DDR interface support.
• Embedded connectivity  Sensor aggregation, display or peripheral interface implementations utilizing the device’s broad I/O standards support.

Unique Advantages

• Right-sized logic density: 3,100 logic elements and 384 logic blocks provide balanced capacity for mid-range FPGA designs without excessive overhead.
• Flexible interfaces: Programmable sysI/O buffer supports multiple signaling standards, simplifying integration with diverse peripherals and buses.
• On-chip memory for local buffering: Approximately 56 Kbits of RAM enables localized data storage and distributed memory architectures.
• Industrial-ready thermal performance: −40 °C to 100 °C rating supports deployment in demanding environments.
• Compact, board-friendly package: 144-LQFP (20 × 20 mm) surface-mount package enables dense PCB layouts and straightforward assembly.
• Design ecosystem support: Family-level datasheet and tool support enable efficient design implementation and migration within the LatticeECP/EC family.

Why Choose LFEC3E-4TN144I?

The LFEC3E-4TN144I positions itself as a practical choice for engineers who need a mid-density FPGA with flexible I/O, on-chip memory and industrial temperature capability in a compact package. It leverages the LatticeECP/EC family architecture—LUT-based logic, embedded and distributed memory resources, and programmable I/O—to address mainstream embedded and system-integration challenges.

This device is well suited to customers building industrial control systems, interface bridging solutions, and memory-interfacing designs that require reliable operation across −40 °C to 100 °C, low-voltage operation around 1.2 V, and a dense set of I/O options for varied signaling standards.

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