EFR32BG1 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 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 256 kB of flash and 32 kB of RAM
• 12-channel Peripheral Reflex System
enabling autonomous interaction of MCU
peripherals
• Autonomous Hardware Crypto Accelerator
and Random Number Generator
• Integrated PA with up to 19 dBm (2.4
GHz) or 20 dBm (Sub-GHz) TX power
• Integrated balun for 2.4 GHz
• Robust peripheral set and up to 31 GPIO
Core / Memory
Clock Management
High Frequency
Crystal
Oscillator
Low Frequency
RC Oscillator
DMA 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
ARM Cortex M4 processor
with DSP extensions and FPU
TM
Memory
Protection Unit
Power-On Reset
CRC
Flash Program
Memory
RAM Memory
Debug Interface
32-bit bus
Peripheral Reflex System
Radio Transceiver
Sub-GHz RF
Frontend:
LNA, PA,
I/Q Mixer
RFSENSE
2.4 GHz RF
Frontend:
LNA, PA,
I/Q Mixer
CRC
RAC
Frequency
Synthesizer
To RF
Frontend
Circuits
Serial
Interfaces
BUFC
DEMOD
FRC
USART
I/O Ports
External
Interrupts
General
Purpose I/O
Timers and Triggers
Timer/Counter
Protocol Timer
Analog I/F
ADC
PGA
IFADC
Low Energy
UART
TM
Low Energy
Timer
Watchdog Timer
Real Time
Counter and
Calendar
Cryotimer
Analog
Comparator
AGC
I
2
C
Pin Reset
Pulse Counter
IDAC
BALUN
MOD
Pin Wakeup
Lowest power mode with peripheral operational:
EM0—Active
EM1—Sleep
EM2—Deep Sleep
EM3—Stop
EM4—Hibernate
EM4—Shutoff
silabs.com
| Building a more connected world.
Rev. 1.2
EFR32BG1 Blue Gecko
Bluetooth®
Low Energy SoC Family Data Sheet
Feature List
1. Feature List
The EFR32BG1 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
• Up to 256 kB flash program memory
• Up to 32 kB RAM data memory
• 2.4 GHz and Sub-GHz radio operation
• Transmit power:
• 2.4 GHz radio: Up to 19.5 dBm
• Sub-GHz radio: Up to 20 dBm
•
Low Energy Consumption
• 8.7 mA RX current at 1 Mbps, GFSK, 2.4 GHz
• 7.6 mA RX current at 38.4 kbps, GFSK, 169 MHz
• 8.2 mA TX current at 0 dBm output power at 2.4 GHz
• 34.5 mA TX current at 14 dBm output power at 868 MHz
• 63 μA/MHz in Active Mode (EM0)
• 1.4 μA EM2 DeepSleep current (4 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
• -94 dBm sensitivity at 1 Mbit/s GFSK, 2.4 GHz
• -101 dBm sensitivity at 250 kbps DSSS-OQPSK, 2.4 GHz
• -126.4 dBm sensitivity at 600 bps, GFSK, 915 MHz
• -121.4 dBm sensitivity at 2.4 kbps, GFSK, 868 MHz
• -107 dBm sensitivity at 4.8 kbps, OOK, 433 MHz
• -111.9 dBm sensitivity at 38.4 kbps, GFSK, 169 MHz
•
Supported Modulation Formats
• 2/4 (G)FSK with fully configurable shaping
• BPSK / DBPSK TX
• OOK / ASK
• Shaped OQPSK / (G)MSK
• Configurable DSSS and FEC
•
Supported Protocols
• Bluetooth
®
Low Energy
• Proprietary Protocols
• Wireless M-Bus
• Selected IEEE 802.15.4g SUN-FSK PHYs
• Low Power Wide Area Networks
•
Suitable for Systems Targeting Compliance With:
• FCC Part 90.210 Mask D, FCC part 15.247, 15.231, 15.249
• ETSI Category I Operation, EN 300 220, EN 300 328
• ARIB T-108, T-96
• China regulatory
•
Wide selection of MCU peripherals
• 12-bit 1 Msps SAR Analog to Digital Converter (ADC)
• 2 × Analog Comparator (ACMP)
• Digital to Analog Current Converter (IDAC)
• Up to 31 pins connected to analog channels (APORT)
shared between analog peripherals
• Up to 31 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 or 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
• 16-bit Pulse Counter with asynchronous operation
• Watchdog Timer with dedicated RC oscillator
• 2 × Universal Synchronous/Asynchronous Receiver/Trans-
mitter (UART/SPI/SmartCard (ISO 7816)/IrDA/I
2
S)
• Low Energy UART (LEUART
™
)
• I
2
C interface with SMBus support and address recognition
in EM3 Stop
Wide Operating Range
• 1.85 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
• Standard (-40 °C to 85 °C) and Extended (-40 °C to 125 °C)
temperature grades available
Support for Internet Security
• General Purpose CRC
• Random Number Generator
• Hardware Cryptographic Acceleration for AES 128/256,
SHA-1, SHA-2 (SHA-224 and SHA-256) and ECC
QFN32 5x5 mm Package
QFN48 7x7 mm Package
•
•
•
•
silabs.com
| Building a more connected world.
Rev. 1.2 | 2
EFR32BG1 Blue Gecko
Bluetooth®
Low Energy SoC Family Data Sheet
Ordering Information
2. Ordering Information
Table 2.1. Ordering Information
Frequency Band
@ Max TX Power
• 2.4 GHz @ 19 dBm
• Sub-GHz @ 20 dBm
• 2.4 GHz @ 19 dBm
• Sub-GHz @ 20 dBm
2.4 GHz @ 19 dBm
Ordering Code
EFR32BG1P333F256IM48-C0
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
Bluetooth Low
Energy
Bluetooth Low
Energy
Bluetooth Low
Energy
Bluetooth Low
Energy
Bluetooth Low
Energy
Bluetooth Low
Energy
Flash
(kB)
256
RAM
(kB)
32
GPIO
28
Package
QFN48
Temp Range
-40 to +125°C
EFR32BG1P333F256GM48-C0
256
32
28
QFN48
-40 to +85°C
EFR32BG1P332F256GM48-C0
256
32
31
QFN48
-40 to +85°C
EFR32BG1P332F256GM32-C0
2.4 GHz @ 19 dBm
256
32
16
QFN32
-40 to +85°C
EFR32BG1P233F256GM48-C0
• 2.4 GHz @ 10.5 dBm
• Sub-GHz @ 10.5 dBm
2.4 GHz @ 10.5 dBm
256
32
28
QFN48
-40 to +85°C
EFR32BG1P232F256GM48-C0
256
32
31
QFN48
-40 to +85°C
EFR32BG1P232F256IM48-C0
2.4 GHz @ 10.5 dBm
256
32
31
QFN48
-40 to +125°C
EFR32BG1P232F256GM32-C0
2.4 GHz @ 10.5 dBm
256
32
16
QFN32
-40 to +85°C
EFR32BG1P232F256IM32-C0
2.4 GHz @ 10.5 dBm
256
32
16
QFN32
-40 to +125°C
EFR32BG1B232F256GM48-C0
EFR32BG1B232F128GM48-C0
EFR32BG1B232F256GM32-C0
EFR32BG1B232F256IM32-C0
EFR32BG1B232F128GM32-C0
EFR32BG1B132F256GM48-C0
EFR32BG1B132F128GM48-C0
2.4 GHz @ 10.5 dBm
2.4 GHz @ 10.5 dBm
2.4 GHz @ 10.5 dBm
2.4 GHz @ 10.5 dBm
2.4 GHz @ 10.5 dBm
2.4 GHz @ 3 dBm
2.4 GHz @ 3 dBm
256
128
256
256
128
256
128
32
32
32
32
32
32
32
31
31
16
16
16
31
31
QFN48
QFN48
QFN32
QFN32
QFN32
QFN48
QFN48
-40 to +85°C
-40 to +85°C
-40 to +85°C
-40 to +125°C
-40 to +85°C
-40 to +85°C
-40 to +85°C
silabs.com
| Building a more connected world.
Rev. 1.2 | 3
EFR32BG1 Blue Gecko
Bluetooth®
Low Energy SoC Family Data Sheet
Ordering Information
Protocol
Stack
Bluetooth Low
Energy
Bluetooth Low
Energy
Bluetooth Low
Energy
Bluetooth Low
Energy
Bluetooth Low
Energy
Bluetooth Low
Energy
Bluetooth Low
Energy
Bluetooth Low
Energy
Frequency Band
@ Max TX Power
2.4 GHz @ 3 dBm
2.4 GHz @ 3 dBm
2.4 GHz @ 3 dBm
2.4 GHz @ 0 dBm
2.4 GHz @ 0 dBm
2.4 GHz @ 0 dBm
2.4 GHz @ 0 dBm
2.4 GHz @ 0 dBm
Flash
(kB)
256
256
128
256
128
256
256
128
RAM
(kB)
32
32
32
16
16
16
16
16
Ordering Code
EFR32BG1B132F256GM32-C0
EFR32BG1B132F256IM32-C0
EFR32BG1B132F128GM32-C0
EFR32BG1V132F256GM48-C0
EFR32BG1V132F128GM48-C0
EFR32BG1V132F256IM32-C0
EFR32BG1V132F256GM32-C0
EFR32BG1V132F128GM32-C0
GPIO
16
16
16
31
31
16
16
16
Package
QFN32
QFN32
QFN32
QFN48
QFN48
QFN32
QFN32
QFN32
Temp Range
-40 to +85°C
-40 to +125°C
-40 to +85°C
-40 to +85°C
-40 to +85°C
-40 to +125°C
-40 to +85°C
-40 to +85°C
EFR32 X G 1 P 132 F 256 G M 32
–
C0 R
Tape and Reel (Optional)
Revision
Pin Count
Package – M (QFN), J (CSP)
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)
Series
Gecko
Family – M (Mighty), B (Blue), F (Flex)
Wireless Gecko 32-bit
Figure 2.1. Ordering Code Key
silabs.com
| Building a more connected world.
Rev. 1.2 | 4
Table of Contents
1. Feature List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2. Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
3. System Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.1 Introduction.
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. 8
. 8
. 9
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. 9
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.10
.10
.10
.10
.10
.11
.11
.12
.12
.12
.12
.12
.12
.12
.13
.13
.13
.13
.13
.13
.13
.13
.13
.14
.14
.14
.14
.14
.14
.14
.14
.14
.15
3.2 Radio. . . . . . . . . . . . .
3.2.1 Antenna Interface . . . . . .
3.2.2 Fractional-N Frequency Synthesizer
3.2.3 Receiver Architecture . . . . .
3.2.4 Transmitter Architecture . . . .
3.2.5 Wake on Radio . . . . . . .
3.2.6 RFSENSE . . . . . . . . .
3.2.7 Flexible Frame Handling . . . .
3.2.8 Packet and State Trace . . . .
3.2.9 Data Buffering . . . . . . . .
3.2.10 Radio Controller (RAC) . . . .
3.2.11 Random Number Generator . .
3.3 Power . . . . . . . . . . .
3.3.1 Energy Management Unit (EMU)
3.3.2 DC-DC Converter . . . . .
3.4 General Purpose Input/Output (GPIO).
3.5 Clocking . . . . . . . . . . .
3.5.1 Clock Management Unit (CMU) .
3.5.2 Internal and External Oscillators.
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3.6 Counters/Timers and PWM . . . . . . . . .
3.6.1 Timer/Counter (TIMER) . . . . . . . .
3.6.2 Real Time Counter and Calendar (RTCC) . .
3.6.3 Low Energy Timer (LETIMER) . . . . . .
3.6.4 Ultra Low Power Wake-up Timer (CRYOTIMER)
3.6.5 Pulse Counter (PCNT) . . . . . . . . .
3.6.6 Watchdog Timer (WDOG) . . . . . . . .
3.7 Communications and Other Digital Peripherals . . . . . . . . . . .
3.7.1 Universal Synchronous/Asynchronous Receiver/Transmitter (USART) .
3.7.2 Low Energy Universal Asynchronous Receiver/Transmitter (LEUART) .
3.7.3 Inter-Integrated Circuit Interface (I
2
C) . . . . . . . . . . . .
3.7.4 Peripheral Reflex System (PRS) . . . . . . . . . . . . .
3.8 Security Features. . . . . . . . . . . . . . . .
3.8.1 GPCRC (General Purpose Cyclic Redundancy Check) .
3.8.2 Crypto Accelerator (CRYPTO) . . . . . . . . .
3.9 Analog . . . . . . . . . . .
3.9.1 Analog Port (APORT) . . . .
3.9.2 Analog Comparator (ACMP) . .
3.9.3 Analog to Digital Converter (ADC)
silabs.com
| Building a more connected world.
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Rev. 1.2 | 5
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