Microchip ATSAML10D15A-YU, 32bit Microcontroller, SAML10, 32MHz, 32 kB Flash, 24-Pin SSOP

Power Arm® Cortex®-M23 MCU consuming less than 25 uA/MHz in active mode and less than 100 nA in sleep mode. It features enhanced peripheral touch controller, advanced analog, event system and Sleep Walking peripherals. SAML10 achieved EEMBC Certified ULPMark 405

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