Ultra-low-power Arm Cortex-M4 32-bit MCU+FPU
STM32L422xx
Ultra-low-power Arm® Cortex®-M4 32-bit MCU+FPU, 100DMIPS, 128KB flash, 40KB SRAM, analog, AES
Datasheet - p...
Description
STM32L422xx
Ultra-low-power Arm® Cortex®-M4 32-bit MCU+FPU, 100DMIPS, 128KB flash, 40KB SRAM, analog, AES
Datasheet - production data
Features
Includes ST state-of-the-art patented technology
Ultra-low-power with FlexPowerControl – 1.71 V to 3.6 V power supply – -40 °C to 85/125 °C temperature range – 300 nA in VBAT mode: supply for RTC and 32x32-bit backup registers – 16 nA Shutdown mode (4 wakeup pins) – 32 nA Standby mode (4 wakeup pins) – 245 nA Standby mode with RTC – 0.7 µA Stop 2 mode, 0.95 µA with RTC – 79 µA/MHz run mode (LDO Mode) – Batch acquisition mode (BAM) – 4 µs wakeup from Stop mode – Brown out reset (BOR) – Interconnect matrix
Core: Arm® 32-bit Cortex®-M4 CPU with FPU, Adaptive real-time accelerator (ART Accelerator™) allowing 0-wait-state execution from flash memory, frequency up to 80 MHz, MPU, 100DMIPS and DSP instructions
Performance benchmark – 1.25 DMIPS/MHz (Drystone 2.1) – 273.55 CoreMark® (3.42 CoreMark/MHz @ 80 MHz)
Energy benchmark – 442 ULPMark-CP® – 165 ULPMark-PP®
Clock Sources – 4 to 48 MHz crystal oscillator – 32 kHz crystal oscillator for RTC (LSE) – Internal 16 MHz factory-trimmed RC (±1%) – Internal low-power 32 kHz RC (±5%) – Internal multispeed 100 kHz to 48 MHz oscillator, auto-trimmed by LSE (better than ±0.25 % accuracy)
LQFP32 (7x7 mm) UFBGA64 (5x5 mm) UFQFPN32 (5x5 mm)
LQFP48 (7x7 mm)
UFQFPN48 (7x7 mm)
WLCSP36 (2.6x3.1 mm)
LQFP64 (10x10 mm)
– Internal 48 MHz with clock recovery – PLL for system clock
Up to 52 fas...
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