ICE40LM4K-CM49

The ICE40LM4K-CM49 is an iCE40™ LM Field Programmable Gate Array (FPGA) from Lattice Semiconductor Corporation designed for ultra‑low power mobile and handheld sensor management. This device combines programmable logic (3,520 logic elements) with embedded memory and hardened serial interfaces to support sensor preprocessing, interface bridging and low‑power always‑on functions.

Packaged in a compact 49‑VFBGA (49‑UCBGA, 3×3) footprint, the device operates from a 1.14 V to 1.26 V supply and is specified for industrial temperature ranges (‑40 °C to 100 °C), making it suitable for space‑constrained, temperature‑tolerant designs.

Key Features

• Logic Capacity 3,520 logic elements and 440 logic clusters (CLBs) to implement control, glue logic and sensor preprocessing functions.
• Embedded Memory Approximately 81,920 bits (≈80 Kbits) of on‑chip RAM to support buffering, data aggregation and small state machines.
• Integrated Serial Interfaces Two hardened I²C controllers and two hardened SPI controllers (family feature) for direct connection to sensors and application processors.
• On‑Chip Strobe Generators Low‑Power and High‑Speed strobe generators for timing control across microsecond and nanosecond ranges (family feature).
• I/O Resources 37 programmable I/O pins configurable for SPI/I²C or general‑purpose I/O to simplify sensor and peripheral interfacing.
• Low‑Voltage Operation Optimized for a narrow supply range of 1.14 V to 1.26 V to support low‑power system designs.
• Package & Mounting 49‑VFBGA (49‑UCBGA, 3×3) surface‑mount package for compact board integration.
• Industrial Temperature Grade Rated for operation from ‑40 °C to 100 °C for deployment in commercial and industrial handheld applications.
• RoHS Compliant Meets RoHS requirements for reduced hazardous substances.

Typical Applications

• Smartphones and Mobile Devices — Sensor management, interface bridging and low‑power control functions in compact mobile designs.
• Tablets and Consumer Handhelds — On‑board preprocessing and peripheral glue logic that reduces system complexity.
• Multi‑Sensor and Always‑On Systems — Sensor fusion, preprocessing and low‑power monitoring for devices requiring continuous sensor supervision.
• Handheld Commercial & Industrial Devices — Compact logic and interface integration with industrial temperature tolerance for portable instrumentation.

Unique Advantages

• Ultra‑low power family heritage — Designed for low standby and operating power to extend battery life in portable applications (family feature).
• Hardened serial peripherals — Built‑in I²C and SPI controllers reduce external components and PCB routing, simplifying sensor and host connections.
• On‑chip timing control — Integrated low‑power and high‑speed strobe generators provide flexible timing options without added external logic.
• Compact, surface‑mount package — 49‑VFBGA (3×3) footprint enables dense board layouts and small form‑factor products.
• Industrial temperature support — Specified from ‑40 °C to 100 °C for reliable operation across a broad environmental range.
• Embedded memory for local buffering — Approximately 80 Kbits of on‑chip RAM supports data aggregation and small state machines without external memory.

Why Choose ICE40LM4K-CM49?

The ICE40LM4K-CM49 brings together a compact package, low‑voltage operation and a balanced mix of logic, memory and hardened serial interfaces to address sensor management and low‑power control tasks in space‑constrained designs. Its on‑chip RAM and integrated I²C/SPI controllers reduce BOM and simplify board-level integration for handheld and always‑on applications.

This part is suited for designers seeking an industrial‑grade, energy‑efficient FPGA with sufficient logic density (3,520 logic elements) and I/O capability (37 pins) to implement sensor preprocessing, interface bridging and custom control logic while keeping size and power to a minimum.

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