EFM8SB1 Datasheet, PDF (1/55 Pages) Silicon Laboratories – The EFM8SB1 highlighted features are listed below

EFM8 Sleepy Bee Family
EFM8SB1 Data Sheet
The EFM8SB1, 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, 14
high-quality capacitive sense channels, and precision analog, the EFM8SB1 family is al-
so optimal for embedded applications.
EFM8SB1 applications include the following:
• Touch pads / key pads
• Wearables
• Instrumentation panels
• Battery-operated consumer electronics
ENERGY FRIENDLY FEATURES
• Lowest MCU sleep current with supply
brownout (50 nA)
• Lowest MCU active current (150 μA / MHz
at 24.5 MHz)
• Lowest MCU wake on touch average
current (< 1 μA)
• Lowest sleep current using internal RTC
and supply brownout (< 300 nA)
• Ultra-fast wake up for digital and analog
peripherals (< 2 μs)
• Integrated LDO to maintain ultra-low active
current at all voltages
Core / Memory
CIP-51 8051 Core
(25 MHz)
Flash Program
Memory
(up to 8 KB)
RAM Memory
(up to 512 bytes)
Debug Interface
with C2
Clock Management
External
Oscillator
Low Power 20 MHz
RC Oscillator
Low Frequency
RC Oscillator
High Frequency
24.5 MHz RC
Oscillator
External 32 kHz RTC Oscillator
Energy Management
Internal LDO
Regulator
Power-On Reset
Brown-Out Detector
Serial Interfaces
UART
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
Internal Current Internal Voltage
Reference
Reference
Capacitive Sense
Security
16-bit CRC
Lowest power mode with peripheral operational:
Normal
Idle
Suspend
Sleep
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Rev. 1.2