Microchip ATSAML11D16A-MU, 32bit ARM Cortex M23 Microcontroller, SAML11, 32MHz, 64 kB Flash, 24-Pin VQFN

Power Arm® Cortex®-M23 featuring chip-level security and ARM® TrustZone® Technology, consuming less than 25uA/MHz in active mode and less than 100 nA in sleep mode. It features secure key storage, chip-level tamper resistance, crypto accelerators, secure boot, secure bootloader, enhanced peripheral touch controller, advanced analog, event system and Sleep Walking peripherals.

Processor:
ARM Cortex®-M23
32 MHz (2.62 CoreMark/MHz and up to 31 DMIPS)
Single-cycle hardware multiplier
Hardware divider
Nested Vector Interrupt Controller (NVIC)
Memory Protection Unit (MPU)
Operating Voltage Range:
1.62V to 3.63V