Datasheet EFR32BG21 (Silicon Labs) - 5

link to page 14 link to page 14 link to page 15 link to page 15 link to page 16 link to page 16 link to page 17 link to page 17 link to page 22 link to page 22 link to page 35 link to page 35 link to page 36 link to page 36 link to page 37 link to page 37 link to page 42 link to page 42 link to page 43 link to page 43 link to page 45 link to page 45 link to page 46 link to page 46 link to page 47 link to page 47 link to page 49 link to page 49 link to page 50 link to page 50 link to page 52 link to page 52 link to page 53 link to page 53 link to page 55 link to page 55 link to page 57 link to page 57 link to page 57 link to page 57 link to page 57 link to page 57 link to page 57 link to page 57 link to page 58 link to page 58 link to page 59 link to page 59 link to page 59 link to page 59 link to page 60 link to page 60 link to page 60 link to page 60 link to page 61 link to page 61 link to page 62 link to page 62 link to page 63 link to page 63 link to page 66 link to page 66 link to page 66 link to page 66 link to page 68 link to page 68 link to page 70 link to page 70 link to page 71 link to page 71 4.1.1 Absolute Maximum Ratings . .14 4.1.2 General Operating Conditions . .15 4.1.3 Thermal Characteristics . .16 4.1.4 Current Consumption . .17 4.1.5 2.4 GHz RF Transceiver Characteristics . .22 4.1.6 Flash Characteristics . .35 4.1.7 Wake Up, Entry, and Exit times . .36 4.1.8 Oscillators . .37 4.1.9 GPIO Pins (3V GPIO pins) . .42 4.1.10 Analog to Digital Converter (ADC) . .43 4.1.11 Analog Comparator (ACMP) . .45 4.1.12 Temperature Sense . .46 4.1.13 Brown Out Detectors . .47 4.1.14 SPI Electrical Specifications . .49 4.1.15 I2C Electrical Specifications. .50 4.2 Typical Performance Curves . .52 4.2.1 Supply Current . .53 4.2.2 2.4 GHz Radio . .55
5. Typical Connection Diagrams . 57
5.1 Power . .57 5.2 RF Matching Networks . .57 5.2.1 2.4 GHz 0 dBm Matching Network . .57 5.2.2 2.4 GHz 10 dBm Matching Network . .58 5.2.3 2.4 GHz 20 dBm Matching Network . .59 5.3 Other Connections. .59
6. Pin Definitions . 60
6.1 QFN32 2.4GHz Device Pinout . .60 6.2 Alternate Function Table. .61 6.3 Analog Peripheral Connectivity . .62 6.4 Digital Peripheral Connectivity . .63
7. QFN32 Package Specifications . . 66
7.1 QFN32 Package Dimensions . .66 7.2 QFN32 PCB Land Pattern . .68 7.3 QFN32 Package Marking . .70
8. Revision History . 71 silabs.com
| Building a more connected world. Rev. 1.0 | 5 Document Outline 1. Feature List 2. Ordering Information 3. System Overview 3.1 Introduction 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 Packet and State Trace 3.2.6 Data Buffering 3.2.7 Radio Controller (RAC) 3.3 General Purpose Input/Output (GPIO) 3.4 Clocking 3.4.1 Clock Management Unit (CMU) 3.4.2 Internal and External Oscillators 3.5 Counters/Timers and PWM 3.5.1 Timer/Counter (TIMER) 3.5.2 Low Energy Timer (LETIMER) 3.5.3 Real Time Clock with Capture (RTCC) 3.5.4 Back-Up Real Time Counter 3.5.5 Watchdog Timer (WDOG) 3.6 Communications and Other Digital Peripherals 3.6.1 Universal Synchronous/Asynchronous Receiver/Transmitter (USART) 3.6.2 Inter-Integrated Circuit Interface (I2C) 3.6.3 Peripheral Reflex System (PRS) 3.7 Security Features 3.7.1 Standard Security 3.7.2 True Random Number Generator 3.8 Analog 3.8.1 Analog Comparator (ACMP) 3.8.2 Analog to Digital Converter (ADC) 3.9 Reset Management Unit (RMU) 3.10 Core and Memory 3.10.1 Processor Core 3.10.2 Memory System Controller (MSC) 3.10.3 Linked Direct Memory Access Controller (LDMA) 3.11 Memory Map 3.12 Configuration Summary 4. Electrical Specifications 4.1 Electrical Characteristics 4.1.1 Absolute Maximum Ratings 4.1.2 General Operating Conditions 4.1.3 Thermal Characteristics 4.1.4 Current Consumption 4.1.4.1 MCU current consumption at 1.8V 4.1.4.2 MCU current consumption at 3.0V 4.1.4.3 Radio current consumption at 1.8V 4.1.4.4 Radio current consumption at 3.0V 4.1.5 2.4 GHz RF Transceiver Characteristics 4.1.5.1 RF Transmitter Characteristics 4.1.5.2 RF Receiver Characteristics 4.1.6 Flash Characteristics 4.1.7 Wake Up, Entry, and Exit times 4.1.8 Oscillators 4.1.8.1 High Frequency Crystal Oscillator 4.1.8.2 Low Frequency Crystal Oscillator 4.1.8.3 High Frequency RC Oscillator (HFRCO) 4.1.8.4 Fast Start_Up RC Oscillator (FSRCO) 4.1.8.5 Low Frequency RC Oscillator 4.1.8.6 Ultra Low Frequency RC Oscillator 4.1.9 GPIO Pins (3V GPIO pins) 4.1.10 Analog to Digital Converter (ADC) 4.1.11 Analog Comparator (ACMP) 4.1.12 Temperature Sense 4.1.13 Brown Out Detectors 4.1.13.1 DVDD BOD 4.1.13.2 LE DVDD BOD 4.1.13.3 AVDD and VIO BODs 4.1.14 SPI Electrical Specifications 4.1.14.1 SPI Master Timing 4.1.14.2 SPI Slave Timing 4.1.15 I2C Electrical Specifications 4.1.15.1 I2C Standard-mode (Sm) 4.1.15.2 I2C Fast-mode (Fm) 4.1.15.3 I2C Fast-mode Plus (Fm+) 4.2 Typical Performance Curves 4.2.1 Supply Current 4.2.2 2.4 GHz Radio 5. Typical Connection Diagrams 5.1 Power 5.2 RF Matching Networks 5.2.1 2.4 GHz 0 dBm Matching Network 5.2.2 2.4 GHz 10 dBm Matching Network 5.2.3 2.4 GHz 20 dBm Matching Network 5.3 Other Connections 6. Pin Definitions 6.1 QFN32 2.4GHz Device Pinout 6.2 Alternate Function Table 6.3 Analog Peripheral Connectivity 6.4 Digital Peripheral Connectivity 7. QFN32 Package Specifications 7.1 QFN32 Package Dimensions 7.2 QFN32 PCB Land Pattern 7.3 QFN32 Package Marking 8. Revision History