The MCX N23x is based on a high-performance Arm® Cortex®-M33 running up to 150
  MHz, with 1MB of Flash, 352 KB ECC RAM and SmartDMA. The MCX N23x is optimized
  for cost, memory and system performance and offers a single core option with
  efficient distribution of workloads to the analog and digital peripherals.
  The EdgeLock Secure Enclave on the MCXN23x is a self-contained, on-die
  hardware security subsystem that has its own dedicated security core, internal
  ROM, secure RAM and it supports state-of-the-art side-channel attack-resilient
  symmetric and asymmetric crypto accelerators and hashing functions for
  security services.
  The MCXN23x devices are supported by the MCUXpresso Developer Experience to
  optimize, ease and help accelerate embedded system development.