SiLEFM8UB10F8G-C-QFN20R
Overview
The EFM8UB10F8G-C-QFN20R is a compact 8-bit microcontroller from the Universal Bee family, featuring a high-performance 8051-based CIP-51 core running up to 50 MHz. It is designed for space-constrained USB applications, integrating a crystal-less USB 2.0 peripheral, a 5V-to-3.3V LDO regulator, and a USB charger detection circuit. The device operates across a wide supply range from 2.2V to 3.6V with specialized low-power modes including a 0.2 uA shutdown state.
Why Choose This Part
This MCU eliminates the need for external crystals and voltage regulators by integrating a 5V LDO and a precision internal oscillator, reducing BOM cost and PCB area. The high-speed 50 MHz core and DMA controller provide processing headroom for handling USB protocol overhead alongside application logic in a tiny 3x3mm QFN20 package.
Applications
Getting Started
Development is supported by the Silicon Labs Simplicity Studio IDE, which includes the Keil 8051 toolchain and hardware configuration tools. To evaluate the hardware, the EFM8 Universal Bee Starter Kit (EFM8UB1-STK) provides an integrated debugger and access to all peripherals.
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