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Jerkmate
https://www.arm.com/products/silicon-ip-cpu/cortex-m/cortex-m23
Cortex-M23 | Smallest, Lowest-Power MCU with TrustZone Security – Arm®
Arm Cortex-M23 is the smallest, lowest-power microcontroller with TrustZone security, ideal for smart, connected applications needing software isolation and...
cortex m23smallestlowestpowermcu
https://www.doulos.com/training/arm-and-embedded-software/arm/arm-cortex-m23-software-design/
Arm Cortex-M23 Software Design
arm cortexsoftware designm23
https://www.renesas.com/en/products/ra2e1
RA2E1 - 48MHz Arm Cortex-M23 Entry-Level General-Purpose Microcontroller | Renesas
The RA2E1 group is the RA Family’s entry level single-chip MCU based on the 48MHz Arm® Cortex®-M23 core and up to 128KB code flash and 16KB SRAM memory.
arm cortexentry levelgeneral purposem23microcontroller