ST STM32L412R8I6

Ultra-low-power Arm® Cortex®-M4 32-bit MCU+FPU delivering up to 100 DMIPS performance, with up to 128KB Flash, 40KB SRAM, analog peripherals, and external SMPS support.

• Ultra-low-power with FlexPowerControl – 1.71V to 3.6V 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) – 28 µA/MHz run mode (@3.3V SMPS 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) – Internal 48 MHz with clock recovery
• Up to 52 fast I/Os, most 5 V-tolerant
• RTC with HW calendar, alarms and calibration
• Up to 12 capacitive sensing channels: support touchkey, linear and rotary touch sensors
• 10x timers: 1x16-bit advanced motor-control, 1x32-bit and 2x 16-bit general purpose, 1x 16-bit basic, 2x low-power 16-bit timers (available in Stop mode), 2x watchdogs, SysTick timer
• Memories – 128 KB single bank Flash, proprietary code readout protection – 40 KB of SRAM including 8 KB with hardware parity check – Quad SPI memory interface with XIP capability
• Rich analog peripherals (independent supply) – 2x 12-bit ADC 5 Msps, up to 16-bit with hardware oversampling, 200 µA/Msps 2x operational amplifiers with built-in PGA – 1x ultra-low-power comparator – Accurate 2.5V or 2.048V reference voltage buffered output
• 12x communication interfaces – USB 2.0 full-speed crystal less solution with LPM and BCD – 3x I2C FM+(1 Mbit/s), SMBus/PMBus – 3x USARTs (ISO 7816, LIN, IrDA, modem) – 1x LPUART (Stop 2 wake-up) – 2x SPIs (and 1x Quad SPI) – IRTIM (Infrared interface)
• 14-channel DMA controller
• True random number generator
• CRC calculation unit, 96-bit unique ID
• All packages are ECOPACK2 compliant
• Development support: serial wire debug (SWD), JTAG, Embedded Trace Macrocell