EFR32BG12 Blue Gecko
Bluetooth
®
Low
Energy SoC Family Data Sheet
The Blue Gecko Bluetooth Low Energy family of SoCs is part of
the Wireless Gecko portfolio. Blue Gecko SoCs are ideal for ena-
bling energy-friendly Bluetooth 5 networking for IoT devices.
The single-die solution provides industry-leading energy efficiency, ultra-fast wakeup
times, a scalable power amplifier, an integrated balun and no-compromise MCU fea-
tures.
Blue Gecko applications include:
•
•
•
•
•
•
•
IoT Sensors and End Devices
Health and Wellness
Home and Building Automation
Accessories
Human Interface Devices
Metering
Commercial and Retail Lighting and Sensing
KEY FEATURES
• 32-bit ARM® Cortex®-M4 core with 40
MHz maximum operating frequency
• Up to 1 MB of flash and 256 kB of RAM
• Pin-compatible with EFR32BG1 QFN48
devices (exceptions apply for 5V-tolerant
pins)
• 12-channel Peripheral Reflex System,
Low-Energy Sensor Interface & Multi-
channel Capacitive Sense Interface
• Autonomous Hardware Crypto Accelerator
and True Random Number Generator
• Integrated PA with up to 19.5 dBm
transmit power for 2.4 GHz and 20 dBm
for Sub-GHz radios
• Integrated balun for 2.4 GHz
• Robust peripheral set and up to 65 GPIO
Core / Memory
Clock Management
High Frequency
Crystal
Oscillator
Low Frequency
RC Oscillator
LDMA
Controller
Low Frequency
Crystal
Oscillator
High Frequency
RC Oscillator
Auxiliary High
Frequency RC
Oscillator
Ultra Low
Frequency RC
Oscillator
Energy Management
Voltage
Regulator
DC-DC
Converter
Brown-Out
Detector
Voltage Monitor
Other
CRYPTO
CRC
ARM Cortex
TM
M4 processor
with DSP extensions and FPU
Memory
Protection Unit
Power-On Reset
True Random
Number Generator
SMU
Flash Program
Memory
RAM Memory
Debug Interface
with ETM
32-bit bus
Peripheral Reflex System
Radio Transceiver
RFSENSE
Sub GHz
I
LNA
RF Frontend
PA
Q
DEMOD
BUFC
FRC
Serial
Interfaces
USART
I/O Ports
External
Interrupts
General
Purpose I/O
Timers and Triggers
Timer/Counter
Protocol Timer
Analog I/F
ADC
Analog
Comparator
PGA
To Sub GHz
receive I/Q
mixers and PA
IFADC
Low Energy
UART
TM
Low Energy
Timer
Watchdog Timer
Real Time
Counter and
Calendar
Cryotimer
IDAC
Capacitive Sense
VDAC
CRC
RAC
RFSENSE
AGC
I
2
C
Pin Reset
Pulse Counter
2.4 GHz
BALUN
LNA
RF Frontend
PA
Q
I
Frequency
Synthesizer
To 2.4 GHz receive
I/Q mixers and PA
MOD
Pin Wakeup
To Sub GHz
and 2.4 GHz PA
Low Energy
Sensor Interface
Op-Amp
Lowest power mode with peripheral operational:
EM0—Active
EM1—Sleep
EM2—Deep Sleep
EM3—Stop
EM4—Hibernate
EM4—Shutoff
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This information applies to a product under development. Its characteristics and specifications are subject to change without notice.
Preliminary Rev. 0.6
EFR32BG12 Blue Gecko
Bluetooth
®
Low Energy SoC Family Data Sheet
Feature List
1. Feature List
The EFR32BG12 highlighted features are listed below.
•
Low Power Wireless System-on-Chip.
• High Performance 32-bit 40 MHz ARM Cortex
®
-M4 with
DSP instruction and floating-point unit for efficient signal
processing
• Embedded Trace Macrocell (ETM) for advanced debugging
• Up to 1024 kB flash program memory
• Up to 256 kB RAM data memory
• 2.4 GHz and Sub-GHz radio operation
• TX power up to 19 dBm
•
Low Energy Consumption
• 10.0 mA RX current at 2.4 GHz (1 Mbps GFSK)
• 10.8 mA RX current at 2.4 GHz (250 kbps O-QPSK DSSS)
• 8.5 mA TX current @ 0 dBm output power at 2.4 GHz
• 70 μA/MHz in Active Mode (EM0)
• 2.1 μA EM2 DeepSleep current (256 kB RAM retention and
RTCC running from LFXO)
• 1.5 μA EM2 DeepSleep current (16 kB RAM retention and
RTCC running from LFRCO)
• Wake on Radio with signal strength detection, preamble
pattern detection, frame detection and timeout
•
High Receiver Performance
• -95 dBm sensitivity @ 1 Mbit/s GFSK
• -91.4 dBm sensitivity @ 2 Mbit/s GFSK
• -120.6 dBm sensitivity at 2.4 kbps GFSK (868 MHz)
•
Supported Modulation Formats
• GFSK
• 2-FSK / 4-FSK with fully configurable shaping
• Shaped OQPSK / (G)MSK
• Configurable DSSS and FEC
• BPSK / DBPSK TX (OPNs supporting Sub-GHz)
• OOK / ASK (OPNs supporting Sub-GHz)
•
Supported Protocols:
• Bluetooth
®
Low Energy (Bluetooth 5)
• Proprietary Protocols
• Wireless M-Bus (OPNs supporting Sub-GHz)
• Low Power Wide Area Networks (OPNs supporting Sub-
GHz)
•
Support for Internet Security
• General Purpose CRC
• True Random Number Generator
• Hardware Cryptographic Acceleration for AES 128/256,
SHA-1, SHA-2 (SHA-224 and SHA-256) and ECC
•
Wide selection of MCU peripherals
• 12-bit 1 Msps SAR Analog to Digital Converter (ADC)
• 2×Analog Comparator (ACMP)
• 2×Digital to Analog Converter (VDAC)
• 3×Operational Amplifier (Opamp)
• Digital to Analog Current Converter (IDAC)
• Low-Energy Sensor Interface (LESENSE)
• Multi-channel Capacitive Sense Interface (CSEN)
• Up to 54 pins connected to analog channels (APORT)
shared between analog peripherals
• Up to 65 General Purpose I/O pins with output state reten-
tion and asynchronous interrupts
• 8 Channel DMA Controller
• 12 Channel Peripheral Reflex System (PRS)
• 2×16-bit Timer/Counter
• 3 + 4 Compare/Capture/PWM channels
• 2×32-bit Timer/Counter
• 3 + 4 Compare/Capture/PWM channels
• 32-bit Real Time Counter and Calendar
• 16-bit Low Energy Timer for waveform generation
• 32-bit Ultra Low Energy Timer/Counter for periodic wake-up
from any Energy Mode
• 3×16-bit Pulse Counter with asynchronous operation
• 2×Watchdog Timer with dedicated RC oscillator
• 4×Universal Synchronous/Asynchronous Receiver/Trans-
mitter (UART/SPI/SmartCard (ISO 7816)/IrDA/I
2
S)
• Low Energy UART (LEUART
™
)
• 2×I
2
C interface with SMBus support and address recogni-
tion in EM3 Stop
•
Wide Operating Range
• 1.8 V to 3.8 V single power supply
• Integrated DC-DC, down to 1.8 V output with up to 200 mA
load current for system
• -40 °C to 85 °C
•
QFN48 7x7 mm Package
•
BGA125 7x7 mm Package
silabs.com
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Preliminary Rev. 0.6 | 1
EFR32BG12 Blue Gecko
Bluetooth
®
Low Energy SoC Family Data Sheet
Ordering Information
2. Ordering Information
Table 2.1. Ordering Information
Frequency Band
Ordering Code
EFR32BG12P433F1024GL125-B
Protocol Stack
• Bluetooth Low
Energy
• Proprietary
• Bluetooth Low
Energy
• Proprietary
• Bluetooth Low
Energy
• Proprietary
• Bluetooth Low
Energy
• Proprietary
• Bluetooth Low
Energy
• Proprietary
• Bluetooth Low
Energy
• Proprietary
• Bluetooth Low
Energy
• Proprietary
• Bluetooth Low
Energy
• Proprietary
• Bluetooth Low
Energy
• Proprietary
• Bluetooth Low
Energy
• Proprietary
@ Max TX Power
• 2.4 GHz @ 19.5 dBm
• Sub-GHz @ 20 dBm
• 2.4 GHz @ 19.5 dBm
• Sub-GHz @ 20 dBm
2.4 GHz @ 19.5 dBm
Flash
(kB)
1024
RAM
(kB)
256
GPIO
65
Package
BGA125
EFR32BG12P433F1024GM48-B
1024
256
28
QFN48
EFR32BG12P432F1024GL125-B
1024
256
65
BGA125
EFR32BG12P432F1024GM48-B
2.4 GHz @ 19.5 dBm
1024
256
31
QFN48
EFR32BG12P332F1024GL125-B
2.4 GHz @ 10 dBm
1024
256
65
BGA125
EFR32BG12P332F1024GM48-B
2.4 GHz @ 10 dBm
1024
256
31
QFN48
EFR32BG12P232F1024GL125-B
2.4 GHz @ 10 dBm
1024
128
65
BGA125
EFR32BG12P232F1024GM48-B
2.4 GHz @ 10 dBm
1024
128
31
QFN48
EFR32BG12P132F1024GL125-B
2.4 GHz @ 0 dBm
1024
128
65
BGA125
EFR32BG12P132F1024GM48-B
2.4 GHz @ 0 dBm
1024
128
31
QFN48
silabs.com
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Preliminary Rev. 0.6 | 2
EFR32BG12 Blue Gecko
Bluetooth
®
Low Energy SoC Family Data Sheet
Ordering Information
EFR32 X G 1 2 P 132 F 1024 G L 125
–
A R
Tape and Reel (Optional)
Revision
Pin Count
Package – M (QFN), L (BGA)
Temperature Grade – G (-40 to +85 °C), -I (-40 to +125 °C)
Flash Memory Size in kB
Memory Type (Flash)
Feature Set Code – r2r1r0
r2: Reserved
r1: RF Type – 3 (TRX), 2 (RX), 1 (TX)
r0: Frequency Band – 1 (Sub-GHz), 2 (2.4 GHz), 3 (Dual-Band)
Performance Grade – P (Performance), B (Basic), V (Value)
Device Configuration
Series
Gecko
Family – M (Mighty), B (Blue), F (Flex)
Wireless Gecko 32-bit
Figure 2.1. OPN Decoder
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Preliminary Rev. 0.6 | 3
EFR32BG12 Blue Gecko
Bluetooth
®
Low Energy SoC Family Data Sheet
System Overview
3. System Overview
3.1 Introduction
The EFR32 product family combines an energy-friendly MCU with a highly integrated radio transceiver. The devices are well suited for
any battery operated application as well as other systems requiring high performance and low energy consumption. This section gives a
short introduction to the full radio and MCU system. The detailed functional description can be found in the EFR32xG12 Wireless
Gecko Reference Manual.
A block diagram of the EFR32BG12 family is shown in
Figure 3.1 Detailed EFR32BG12 Block Diagram on page 4.
The diagram
shows a superset of features available on the family, which vary by OPN. For more information about specific device features, consult
Ordering Information.
Radio Transceiver
SUBGRF_IP
SUBGRF_IN
SUBGRF_OP
SUBGRF_ON
RFSENSE
Sub-GHz RF
I
LNA
PA
Port I/O Configuration
DEMOD
FRC
IOVDD
BUFC
Digital Peripherals
LETIMER
TIMER
Port A
Drivers
PAn
Q
I
PGA
Frequency
Synthesizer
To RF
Frontend
Circuits
IFADC
AGC
MOD
2.4 GHz RF
LNA
CRC
RAC
CRYOTIMER
PCNT
RTC / RTCC
USART
Port
Mapper
Port C
Drivers
Port D
Drivers
Port F
Drivers
Port I
Drivers
Port J
Drivers
Port K
Drivers
PCn
Port B
Drivers
PBn
2G4RF_IOP
2G4RF_ION
BALUN
PA
Q
RESETn
Debug Signals
(shared w/GPIO)
Serial Wire
and ETM
Debug /
Programming
Reset
Management
Unit
Brown Out /
Power-On
Reset
LEUART
ARM Cortex-M4 Core
Up to 1024 KB ISP Flash
Program Memory
Up to 256 KB RAM
Memory Protection Unit
A A
H P
B B
I2C
CRYPTO
CRC
LESENSE
PDn
PFn
PAVDD
RFVDD
IOVDD
AVDD
DVDD
Energy Management
Floating Point Unit
LDMA Controller
Analog Peripherals
IDAC
Mux & FB
PIn
VDAC
Internal
Reference
bypass
VREGVDD
VREGSW
DECOUPLE
LFXTAL_P
LFXTAL_N
HFXTAL_P
HFXTAL_N
Input Mux
DC-DC
Converter
Voltage
Regulator
ULFRCO
AUXHFRCO
LFRCO
LFXO
HFRCO
HFXO
VDD
Temp
Sense
12-bit ADC
Capacitive
Sense
+
-
Analog Comparator
Figure 3.1. Detailed EFR32BG12 Block Diagram
3.2 Radio
The Blue Gecko family features a radio transceiver supporting Bluetooth
®
Low Energy and proprietary short range wireless protocols.
3.2.1 Antenna Interface
The 2.4 GHz antenna interface consists of two pins (2G4RF_IOP and 2G4RF_ION) that interface directly to the on-chip BALUN. The
2G4RF_ION pin should be grounded externally.
The external components and power supply connections for the antenna interface typical applications are shown in the RF Matching
Networks section.
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APORT
Clock Management
Op-Amp
+
-
Voltage
Monitor
Watchdog
Timer
PJn
PKn
Preliminary Rev. 0.6 | 4
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