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EFM8SB10F2G-A-QFN20R

SiLEFM8SB10F2G-A-QFN20R

Silicon Labs
CIP-51 8051 Sleepy Bee Microcontroller IC 8-Bit 25MHz 2KB (2K x 8) FLASH 20-QFN (3x3)
Active6,155 in stock
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Overview

The EFM8SB10F2G-A-QFN20R is an ultra-low power 8-bit microcontroller from Silicon Labs' Sleepy Bee family, featuring a high-performance CIP-51 8051 core. It is engineered for extreme energy efficiency, consuming only 300 nA in sleep mode with the internal regulator active, making it ideal for battery-operated systems. Despite its small 3x3mm footprint, it integrates a 12-bit ADC and flexible peripheral routing via a digital crossbar.

Why Choose This Part

This MCU offers a remarkable balance of low power and precision, featuring a 300 nA sleep current and a 12-bit ADC. Its CIP-51 core executes 70% of instructions in 1-2 clock cycles, providing 25 MHz performance from a compact 2KB flash footprint. The integrated crossbar allows for flexible pin mapping, simplifying PCB routing in space-constrained designs.

Applications

Battery-Powered Wearables
Ideal for simple fitness trackers or smart jewelry requiring long battery life and periodic sensor monitoring.
Remote Sensing Nodes
Excellent for IoT sensors that spend most of their time in sleep mode and wake up for quick 12-bit analog data acquisition.
Handheld Medical Devices
Suitable for compact glucose meters or thermometers that require high-resolution analog inputs and low standby current.
Smart Key Fobs
Provides the necessary security and communication interfaces (I2C, SPI, UART) in a tiny 20-QFN package.

Key Specifications

Speed 25MHz
RAM Size 256 x 8
Core Size 8-Bit
Peripherals Brown-out Detect/Reset, POR, PWM, WDT
Connectivity I2C, SMBus, SPI, UART/USART
Mounting Type Surface Mount
Number of I/O 16
Core Processor CIP-51 8051
Package / Case 20-UFQFN Exposed Pad
Data Converters A/D 9x12b
Oscillator Type Internal
Program Memory Size 2KB (2K x 8)
Program Memory Type FLASH
Operating Temperature -40degC ~ 85degC (TA)
Supplier Device Package 20-QFN (3x3)
Voltage - Supply (Vcc/Vdd) 1.8V ~ 3.6V

Getting Started

Engineers can begin development with the Simplicity Studio IDE, which includes a compiler and configuration tools. The EFM8SB1 Sleepy Bee Starter Kit (SLWSTK6200A) provides an on-board debugger and sensors for immediate prototyping. Hardware debugging is supported via the Silicon Labs USB Debug Adapter or the J-Link debug probe.

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