EFM8SB2 Datasheet, PDF (1/49 Pages) Silicon Laboratories – The EFM8SB2 highlighted features are listed below

EFM8 Sleepy Bee Family
EFM8SB2 Data Sheet
The EFM8SB2, part of the Sleepy Bee family of MCUs, is the
world’s most energy friendly 8-bit microcontrollers with a compre-
hensive feature set in small packages.
These devices offer lowest power consumption by combining innovative low energy tech-
niques and short wakeup times from energy saving modes into small packages, making
them well-suited for any battery operated applications. With an efficient 8051 core, 6-bit
current reference, and precision analog, the EFM8SB2 family is also optimal for embed-
ded applications.
EFM8SB2 applications include the following:
• Hand-held devices
• Industrial controls
• Battery-operated consumer electronics
• Sensor interfaces
ENERGY FRIENDLY FEATURES
• Lowest MCU sleep current with supply
brownout detection (50 nA)
• Lowest MCU active current with these
features (170 μA / MHz at 24.5 MHz clock
rate)
• Lowest MCU sleep current using internal
RTC operating and supply brownout
detection (<300 nA)
• Ultra-fast wake up for digital and analog
peripherals (< 2 μs)
• Integrated low drop out (LDO) voltage
regulator to maintain ultra-low active
current at all voltages
Core / Memory
CIP-51 8051 Core
(25 MHz)
Clock Management
External
Oscillator
Low Power 20
MHz RC
Oscillator
Energy Management
Internal LDO
Regulator
Power-On Reset
Flash Program
Memory
(up to 64 KB)
RAM Memory
(4352 bytes)
Debug Interface
with C2
External 32 kHz
RTC Oscillator
High Frequency
24.5 MHz RC
Oscillator
Brown-Out Detector
Serial Interfaces
UART
2 x SPI
I²C / SMBus
I/O Ports
External
Interrupts
Pin Reset
General
Purpose I/O
Pin Wakeup
8-bit SFR bus
Timers and Triggers
Timers
0/1/2/3
PCA/PWM
Watchdog
Timer
Real Time
Clock
Analog Interfaces
ADC
Comparator 0
Comparator 1
Internal Voltage
Reference
Internal Current Reference
Security
16/32-bit CRC
Lowest power mode with peripheral operational:
Normal
Idle
Suspend
Sleep
silabs.com | Smart. Connected. Energy-friendly.
Rev. 1.1