LFE3-70E-8FN1156I

The LFE3-70E-8FN1156I is an ECP3 family FPGA from Lattice Semiconductor Corporation designed for high-density logic and I/O integration. It combines a large logic fabric with substantial on-chip memory and a high pin count in a compact BGA package.

Targeted for industrial applications and dense interface designs, this device delivers 67,000 logic elements, approximately 4.53 Mbits of embedded memory, and 490 I/O pins while supporting a 1.14 V to 1.26 V supply and an operating range of −40°C to 100°C.

Key Features

• Core Architecture  ECP3 FPGA core offering 67,000 logic elements for implementation of complex digital functions and integration of multiple subsystems.
• Embedded Memory  Approximately 4.53 Mbits of on-chip RAM to support buffering, state storage, and local data processing without immediate reliance on external memory.
• I/O Density  490 general-purpose I/O pins to accommodate numerous peripherals, sensors, and high-density interface requirements.
• Package and Mounting  1156-BBGA package (supplier package: 1156-FPBGA, 35×35) with surface-mount mounting for compact board-level integration.
• Power  Low-voltage operation with a supply range of 1.14 V to 1.26 V for integration into modern low-voltage systems.
• Industrial Temperature Range  Rated for −40°C to 100°C operation, suitable for industrial-environment deployments.
• Regulatory  RoHS compliant.

Typical Applications

• Industrial Automation  Sensor and actuator interfacing, control logic consolidation, and I/O aggregation in industrial control systems leveraging the industrial temperature range and high I/O count.
• Communications and Networking  Protocol bridging, buffering, and custom packet handling functions that benefit from the device’s logic density and on-chip memory.
• High-Density I/O Systems  Board-level interface expansion and front-end aggregation where many signals must be routed and processed in a compact footprint.

Unique Advantages

• High logic density: 67,000 logic elements allow consolidation of multiple functions into a single FPGA, reducing BOM and board complexity.
• Significant on‑chip memory: Approximately 4.53 Mbits of embedded RAM supports local buffering and reduces dependence on external memory components.
• Extensive I/O capability: 490 I/Os simplify integration of multiple peripherals and high-speed interfaces without external multiplexing logic.
• Industrial-rated operation: −40°C to 100°C temperature rating enables deployment in demanding environmental conditions.
• Compact BGA packaging: 1156-BBGA (1156-FPBGA, 35×35) balances high pin count with space-efficient surface-mount mounting.
• Low-voltage operation: 1.14 V to 1.26 V supply range supports low-power system architectures.

Why Choose LFE3-70E-8FN1156I?

The LFE3-70E-8FN1156I positions itself as a high-density, industrial-grade FPGA option for designs that require a large logic fabric, substantial on-chip memory, and a high number of I/Os in a compact BGA package. Its specified supply range and industrial temperature rating make it suitable for robust embedded and industrial applications.

This device is well suited for engineering teams consolidating multiple functions onto a single programmable device to reduce board-level complexity and component count while maintaining flexibility for iterative design changes.

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