ARM Cortex-M4 at 80 MHz — what the core clock buys you
The STM32L462RET6: ARM Cortex-M4 core runs at 80 MHz. 512 KB Flash and 160 KB SRAM (160K x 8) are available.
Supply range and temperature — where this MCU lives
Brown-out detect and reset are integrated — no external supervisor needed for the basic reset function.
Peripheral set — connectivity for IoT and industrial nodes
That QSPI interface is the one to note: it lets you attach external serial Flash or PSRAM for code shadowing or data logging without chewing up GPIO.
Data converters — 16-channel 12-bit ADC, single 12-bit DAC
The ADC block samples 16 channels at 12-bit resolution — enough for multi-sensor acquisition in a data-logger or a motor-drive current-sense bank. The single 12-bit DAC covers one analog output channel for set-point generation or waveform synthesis.
STMicroelectronics lists the STM32L462RET6 as Active. The part is ROHS3 compliant. For production BOMs, this MCU carries no imminent last-time-buy risk.