STM32L4R9AI mcu+fpu equivalent, ultra-low-power arm cortex-m4 32-bit mcu+fpu.
* Ultra-low-power with FlexPowerControl
– 1.71 V to 3.6 V power supply
– -40 °C to 85/125 °C temperature range
– Batch.
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3 Functional overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
3.1 Arm® Cortex®-M4 core with FPU . . . . . . .
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