STM32L452RET3

Technical Specifications

Product Introduction

Features

• Ultra-low-power with FlexPowerControl
• 1.71 V to 3.6 V power supply
• 40 ℃ to 85/125 ℃ temperature range
• 145 nA in VBAT mode: supply for RTC and 32x32-bit backup registers
• 22 nA Shutdown mode (5 wakeup pins)
• 106 nA Standby mode (5 wakeup pins)
• 375 nA Standby mode with RTC
• 2.05 μA Stop 2 mode, 2.40 μA with RTC
• 84 μA/MHz run mode (LDO Mode)
• 36 μA/MHz run mode (@3.3 V 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 335 ULPMark CP score 104 ULPMark PP score
• 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
• 2 PLLs for system clock, audio, ADC
• Up to 83 fast I/Os, most 5 V-tolerant
• RTC with HW calendar, alarms and calibration
• Up to 21 capacitive sensing channels: support touchkey, linear and rotary touch sensors
• 12x timers: 1x16-bit advanced motor-control, 1x32-bit and 3x 16-bit general purpose, 2x 16-bit basic, 2x low-power 16-bit timers (available in Stop mode), 2x watchdogs, SysTick timer
• Memories – Up to 512 KB single bank Flash, proprietary code readout protection – 160 KB of SRAM including 32 KB with hardware parity check – Quad SPI memory interface
• Rich analog peripherals (independent supply) – 1x 12-bit ADC 5 Msps, up to 16-bit with hardware oversampling, 200 μA/Msps – 1x 12-bit DAC output channels, low-power sample and hold – 1x operational amplifier with built-in PGA – 2x ultra-low-power comparators – Accurate 2.5 V or 2.048 V reference voltage buffered output
• 17x communication interfaces – USB 2.0 full-speed crystal less solution with LPM and BCD – 1x SAI (serial audio interface) – 4x I2C FM+(1 Mbit/s), SMBus/PMBus – 3x USARTs (ISO 7816, LIN, IrDA, modem) – 1x UART (LIN, IrDA, modem) – 1x LPUART (Stop 2 wake-up) – 3x SPIs (and 1x Quad SPI)

Datasheet

Alternative Parts

Common STM32L452RET3 alternatives overseas buyers search for:

• STM32L451RET6 (request quote)
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