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QuickLogic EOS3FLF512-WRN42: An Ultra-Low-Power Wearable and Edge AI SoC with Integrated eFPGA
9/20/2026 6:15:24 PM
QuickLogic EOS3FLF512-WRN42 is an ultra-low-power SoC that integrates an Arm Cortex-M4F microcontroller and an embedded FPGA (eFPGA) on a single chip. Its core value lies in providing "always-on" voice and sensor processing for wearables and IoT endpoints while keeping operating power extremely low.
Core Specifications at a Glance
|
Parameter |
Specification |
|
Core architecture |
32-bit Arm Cortex-M4F + eFPGA |
|
Maximum clock frequency |
80 MHz |
|
Program SRAM |
512 KB |
|
FPGA SRAM |
64 KB |
|
FPGA logic elements |
2,400 LE |
|
FPGA gate count |
2k gates |
|
Operating voltage |
1.1 V |
|
Operating current |
147 µA |
|
Interfaces |
I²C, UART, SPI, PDM, I²S, 12-bit ADC |
|
I²C, UART, SPI, PDM, I²S, 12-bit ADC |
x42-WLCSP (2.65 mm × 2.42 mm) |
|
Operating temperature |
-20°C to 85°C (TJ) |
Source: QuickLogic.
The most striking feature of the EOS3FLF512-WRN42 is that it combines software and hardware strengths: the Cortex-M4F runs the operating system and higher-level protocol stacks, while the eFPGA implements hardware acceleration logic. Working together, they allow a single chip to retain software flexibility while achieving hardware-level processing efficiency. In voice applications, its built-in Low Power Sound Detection (LPSD) module can continuously listen to ambient sound while the main processor sleeps. Once a keyword or trigger event is detected, it wakes the M4F core for further processing. For wearable medical and fitness devices that need to run for months on a coin cell battery, this architecture can significantly extend battery life.
Q&A
Q: What specific scenarios is the EOS3FLF512-WRN42 suitable for?
A: Typical scenarios include multi-sensor data fusion in smart watches and fitness bands, voice wake-up and command recognition, coordinated processing of PPG heart rate and motion sensors, and edge AI inference for predictive maintenance and context-aware applications.
Q: What tool support is needed to develop with this chip?
A: QuickLogic provides the QORC (Open Reconfigurable Computing) open-source development kit, which supports Zephyr and FreeRTOS. The eFPGA portion can be compiled from Verilog to bitstream using the F4PGA toolchain, and the Renode simulator supports software pre-development before hardware is ready. Development boards such as QuickFeather and Qomu can be used directly for prototyping.
Q: How does its power consumption compare with similar products?
A: Its 147 µA operating current is extremely low among MCU-class SoCs with integrated eFPGA. With a 1.1 V supply, the chip can sustain long-term "always sensing" operation on a single coin cell battery, which is a core competitive advantage over traditional MCU solutions.
Overall, with its tiny 2.65 mm × 2.42 mm package, the EOS3FLF512-WRN42 combines MCU generality and FPGA reconfigurability on a 1.1 V low-power platform, offering a chip-level path for wearable and edge AI devices that balances battery life and flexibility.
Fudong Communication (Shenzhen) Group Co., Ltd., established in 2004, is a specialized global first tier semiconductor agent/distributor.
Fudong Mall is an online e-commerce platform belonging to Fudong Communication (Shenzhen) Group Co., Ltd. Fudong collaborates with global electronic component distributors and Chinese spot inventory suppliers.
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