EFR32FG25 Sub-GHz Wireless SoCs

Low Power Wireless System-on-Chip

• High Performance 32-bit 97.5 MHz ARM Cortex®-M33 with DSP instruction and floating-point unit for efficient signal processing
• Up to 1920 kB flash program memory
• Up to 512 kB RAM data memory
• Sub-GHz radio operation
• TX power up to +16 dBm

Wide Selection of MCU peripherals

• Analog to Digital Converter (ADC)
  • 12-bit @ 1 Msps
  • 16-bit @ 76.9 ksps
• 2 × Analog Comparator (ACMP)
• Digital to Analog Converter (VDAC) with two channels
• Low-Energy Sensor Interface (LESENSE)
• Up to 37 General Purpose I/O pins with output state retention and asynchronous interrupts
• 16 Channel DMA Controller
• 12 Channel Peripheral Reflex System (PRS)
• 6 × 16-bit Timer/Counter with 3 Compare/Capture/PWM channels
• 2 × 32-bit Timer/Counter with 3 Compare/Capture/PWM channels
• 32-bit Real Time Counter
• 24-bit Low Energy Timer for waveform generation
• 2 × Watchdog Timer
• 1 × USB2.0 Full Speed port, Device only
• 5 × EUSART (Enhanced Universal Synchronous/Asynchronous Receiver/Transmitter)
  • EUSART0 operates in EM2
  • SPI and IrDA supported by EUSART
• 2 × I2C interface with SMBus support
• High Frequency Crystal Oscillator clock sharing using buffered sine wave clock output
• Die temperature sensor with ± 2 °C accuracy across temperature range

Low Energy Consumption

• 6.3 mA RX current at 924 MHz (400 kbps 4-FSK)
• 58.6 mA TX current @ 13 dBm output power at 923.6 MHz with CW from FSK PA
• 76.6 mA TX current @ 16 dBm output power at 915 MHz with CW from FSK PA
• 186 mA TX current @ 16 dBm output power at 914 MHz (2.4 Mbps Wi-SUN OFDM Option 1, MCS6)
• 30 μA/MHz in Active Mode (EM0) at 97.5 MHz
• 4.6 μA EM2 DeepSleep current (512 kB RAM retention and RTC running from LFXO)
• 2.6 μA EM2 DeepSleep current (32 kB RAM retention and RTC running from LFRCO)

Wide Operating Range

• 1.71 to 3.8 V VDD power supply
• 3.45 to 3.8 V PAVDD power supply for OFDM
• -40 °C to +125 °C

Supported Modulation Format

• Wi-SUN MR OFDM MCS 0-6 (all 4 Options)
• 802.15.4 SUN MR O-QPSK with DSSS
• Wi-SUN FSK
• 2 (G)FSK with fully configurable shaping
• (G)MSK

Protocol Support

• Proprietary
• Wi-SUN

High Receiver Performance

• -107.5 dBm sensitivity @ 300 kbps 923.7 MHz Wi-SUN OFDM Option 3, MCS4
• -114.5 dBm sensitivity @ 50 kbps 923.6 MHz Wi-SUN FSK #1b with FEC
• -115.8 dBm sensitivity @ 12.5 kbps 923.6 MHz Wi-SUN OFDM Option 4, MCS0
• -125.8 dBm sensitivity @ 4.8 kbps 915 MHz O-QPSK
• -123.9 dBm sensitivity @ 6.25 kbps 914 MHz SUN O-QPSK
• -114.6 dBm sensitivity @ 50 kbps 914 MHz Wi-SUN FSK #1b with FEC
• -95.3 dBm sensitivity @ 2.4 Mbps 914 MHz Wi-SUN OFDM Option 1, MCS6
• -116.0 dBm sensitivity @ 12.5 kbps 914 MHz Wi-SUN OFDM Option 4, MCS0
• -114.1 dBm sensitivity @ 50 kbps 866.5 MHz Wi-SUN FSK #1a with FEC
• -113.2 dBm sensitivity @ 50 kbps 866.5 MHz OFDM Option 4, MCS2
• -114.5 dBm sensitivity @ 50 kbps 490 MHz OFDM Option 4, MCS2

Packages

• QFN56 7 mm x 7 mm x 0.85 mm

FG25 Security Features

• Secure Boot with Root of Trust and Secure Loader (RTSL)
• Hardware Cryptographic Acceleration with DPA countermeasures for AES128/256, SHA-1, SHA-2 (up to 256-bit),
• ECC (up to 256-bit), ECDSA, ECDH and J-Pake
• True Random Number Generator (TRNG) compliant with NIST SP800-90 and AIS-31
• ARM® TrustZone®
• Secure Debug with lock/unlock
• Secure Attestation
• Secure Key Management
• Secure Key Storage
• Anti-Tamper