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LM

Last Mile Semiconductor

The company provides the LM10XX System‑on‑Chip, a license‑free 1.9 GHz NR+ radio combined with a dual‑core 200 MHz RISC‑V MCU for secure, low‑power wireless connectivity in industrial and commercial IoT devices. The SoC integrates hardware security features, a cryptographic accelerator, and a Zephyr‑compatible SDK to enable long‑range, low‑latency links without cellular fees, targeting OEMs and system integrators for smart‑energy, building‑automation, and smart‑city applications.

Updated 2 months ago

Funding

Funding not disclosed

Funding rounds are not available yet.

Founders

Founder details are not available yet.

Product

Problem

Industrial and commercial IoT deployments require wireless links that are low‑power, secure, and scalable, yet many existing solutions rely on costly cellular plans, bulky hardware, or proprietary protocols that increase bill of materials and limit long‑term independence.

Solution

The LM10XX System‑on‑Chip delivers a single‑die, license‑free NR+ radio combined with a dual‑core 200 MHz RISC‑V processor to provide secure, low‑latency connectivity for edge devices. Built on 22 nm FDSOI, the SoC achieves best‑in‑class energy efficiency while supporting long‑range, high‑reliability links without operator fees. Integrated security features—including secure boot, authenticated firmware updates, encrypted storage, and a hardware cryptographic accelerator—protect data integrity across industrial, smart‑energy, and building‑automation use cases. The platform ships with a Zephyr‑compatible SDK, enabling rapid firmware development and seamless integration into existing IoT stacks. By replacing wired back‑haul or costly cellular modules, the LM10XX enables cost‑effective, cable‑alternative connectivity for large‑scale deployments.

Target Audience

Primary customers are OEMs and system integrators developing industrial IoT, smart‑energy, smart‑building, and smart‑city solutions that require secure, low‑cost wireless edge connectivity.

Features

  • Low‑power, multiprotocol 1.9 GHz NR+ radio (license‑free 5G) with long‑range link budget
  • Dual‑core 200 MHz RISC‑V MCU delivering deterministic processing for real‑time edge workloads
  • Up to 3 MB non‑volatile memory and 512 KB SRAM for secure firmware and data buffering
  • Integrated peripherals: 14‑bit ADC, high‑speed serial interfaces (SPI, UART, I²C), and a Global RTC available in System‑OFF mode
  • Secure boot, authenticated OTA firmware updates, and encrypted on‑chip storage
  • Dedicated cryptographic accelerator with side‑channel leakage protection and tamper detection sensors
  • Zephyr OS support and comprehensive SDK for rapid application development
  • Fabricated in 22 nm FDSOI technology for superior energy efficiency and temperature resilience
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