Wireless microcontroller
- Powerful 48MHz Arm®Cortex®-M33 processor with TrustZone®
- FPU and DSP extension
- 1024kB flash program memory
- 8kB of cache SRAM
- 256kB of ultra-low leakage SRAM with parity for high-reliability operation
- 32kB of additional SRAM
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 update (OTA)
Ultra-low power sensor controller
- Autonomous MCU with 4kB 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:
- 4.0mA active mode, CoreMark®
- 83μA/MHz running CoreMark
- 1.19μA standby mode, RTC, 256kB SRAM
- 0.13μA shutdown mode, wake-up on pin
- Ultra-low-power sensor controller consumption
- 32μA in 2MHz mode
- 849μA in 24MHz mode
- Radio consumption:
- 6.4mA RX at 2.4GHz
- 25mA TX at +10dBm
at 2.4GHz
- 102mA TX at +20dBm at 2.4GHz
- 6.9mA TX at 0dBm at
2.4GHz
Wireless protocol support
High-performance radio
- -105dBm for Bluetooth® Low Energy 125kbps
- -105dBm for IEEE 802.15.4-2006 2.4GHz OQPSK (coherent modem)
- Output
power up to +20dBm 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, 200ksps, 8 channels
- 8-bit DAC
- Two comparators
- Programmable current source
- Four UART, four SPI, two I2C, one 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 a trusted execution environment
- AES 128-bit 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
- 1.8V to 3.8V single supply voltage
- -40°C to +105°C
Package
- 7mm × 7mm RGZ VQFN48 (26 GPIOs)
- 8mm × 8mm RSK VQFN64 (42 GPIOs)
- RoHS-compliant package