Arm®Cortex®-M33 processor (96MHz) with
FPU (floating point unit), TrustZone®-M support, and CDE
(custom datapath extension) for machine learning acceleration
Algorithm Processing Unit (APU)
(96MHz)
Mathematical accelerator
for efficient vector and matrix operations
Bluetooth® Channel
Sounding post-processing support for IFFT and advanced super-resolution
algorithms such as MUltiple SIgnal Classification (MUSIC)
Wireless MCU memory
2MB of in-system programmable
flash
288KB of SRAM
36KB of System ROM with secure
boot root of trust (RoT) and a serial (SPI/UART) bootloader
Serial wire debug (SWD)
MCU peripherals
23 GPIOs, digital peripherals can
be routed to multiple GPIOs:
Two SWD IO pads,
multiplexed with GPIOs
Two LFXT IO pads,
multiplexed with GPIOs
19 DIOs (analog or
digital IOs)
All GPIOs have wakeup and
interrupt capabilities
3 × 16-bit and 1 × 32-bit
general-purpose timers, quadrature decode mode support
Real-time clock (RTC)
Watchdog timer
System timer for radio, RTOS, and
application operations for Bluetooth® channel sounding
postprocessing
12-bit ADC, up to 1.2MSPS, eight
external inputs
Temperature sensor and battery
monitor
1× low-power comparator
2× UART
2× SPI
1× I2C
1× I2S
Security enablers
Hardware Security Module (HSM)
with proprietary controller and dedicated memories supporting accelerated
cryptographic operations and secure key storage:
AES (up to 256 bits)
crypto accelerator
ECC (up to 521 bits), RSA
(up to 3072 bits) public key accelerator
SHA-2 (up to 512 bits)
accelerator
True random number
generator
HSM firmware update
support
Differential power
analysis (DPA) countermeasures for AES and ECC
Separate AES 128-bit
cryptographic accelerator (LAES) for latency-critical link-layer operations
Secure boot and secure firmware
updates
Secure boot root of trust (RoT)
Cortex®-M33 TrustZone-M, MPU,
memory firewalls for software isolation
Voltage glitch monitor (VGM)
Low-power consumption (VDDS at 3.3V)
On-chip buck DC/DC converter
RX current: 6.2mA
TX current at 0dBm: 7.7mA
TX current at +5dBm: 10.6mA
TX current at +20dBm: 132mA
Active mode MCU 96MHz (CoreMark®): 6.7mA
Standby: 1.1µA (low power mode,
RTC on, full SRAM retention)