Wireless microcontroller
- Powerful 48 MHz Arm®Cortex®-M33 processor with TrustZone®
- FPU and DSP extension
- 1024 kB flash program memory
- 8 kB of cache SRAM
- 256 kB of ultra-low leakage SRAM with parity for high-reliability operation
- 32 kB of additional SRAM
is available if parity is disabled
- Dynamic multiprotocol manager (DMM) driver
- Programmable radio
includes support for 2- (G)FSK, 4-(G)FSK, MSK, Bluetooth® 5.3 Low Energy, IEEE
802.15.4 PHY and MAC
- Supports over-the-air upgrade (OTA)
Ultra-low power sensor controller
- Autonomous MCU with 4 kB of
SRAM
- Sample, store, and process sensor data
- Fast wake-up for low-power operation
- Software defined peripherals; capacitive touch, flow meter, LCD
Low power consumption
- MCU consumption:
- 4.0 mA active mode, CoreMark®
- 83 μA/MHz running
CoreMark
- 1.19 μA standby mode,
RTC, 256 kB RAM
- 0.13 μA shutdown mode,
wake-up on pin
- Ultra
low-power sensor controller consumption:
- 30 μA in 2 MHz mode
- 809 μA in 24 MHz
mode
- Radio consumption:
- 6.4 mA RX at 2.4 GHz
- 22 mA TX at +10 dBm
at 2.4 GHz
- 101 mA TX at +20 dBm at 2.4 GHz
- 7.3 mA TX at 0 dBm
at 2.4 GHz
Wireless protocol support
High performance radio
- –104 dBm for Bluetooth® Low Energy 125 kbps
- –105 dBm for IEEE 802.15.4-2006 2.4 GHz OQPSK (coherent modem)
- Output power up to +20 dBm with temperature compensation
Regulatory compliance
- Designed for systems targeting compliance with these standards:
- EN 300 328, EN 300 440 Cat. 2 and 3
- FCC CFR47 Part 15
- ARIB STD-T66
MCU peripherals
- Most digital peripherals can be routed to any GPIO
- Four 32-bit or eight 16-bit general-purpose timers
- 12-bit SAR ADC, 200 ksps, 8 channels
- 8-bit DAC
- Two comparators
- Programmable current source
- Four UART, four SPI, two I2C, I2S
- Real-time clock (RTC)
- Integrated temperature and battery monitor
Security enablers
- Supports secure boot
- Supports secure key storage and device ID
- Arm TrustZone for trusted execution environment
- AES 128- and 256-bit cryptographic accelerator
- Public key accelerator
- SHA2 accelerator (full suite up to SHA-512)
- True random number generator (TRNG)
- Secure debug lock
- Software anti-rollback protection
Development tools and software
Operating range
- On-chip buck DC/DC converter
- 1.8 V to 3.8 V single supply voltage
- –40°C to +105°C
Package
- 7 mm × 7 mm RGZ VQFN48 (26 GPIOs)
- 8 mm × 8 mm RSK VQFN64 (42 GPIOs)(1)
- RoHS-compliant package