STM32L432KCU6

STM32L432KCU6 General Description

The STM32L432xx devices are the ultra-low-power microcontrollers based on the high-performance Arm®Cortex®-M4 32-bit RISC core operating at a frequency of up to 80 MHz. The Cortex-M4 core features a Floating point unit (FPU) single precision which supports all Arm®single-precision data-processing instructions and data types. It also implements a full set of DSP instructions and a memory protection unit (MPU) which enhances application security.The STM32L432xx devices embed high-speed memories (Flash memory up to 256 Kbyte, 64 Kbyte of SRAM), a Quad SPI flash memories interface and an extensive range of enhanced I/Os and peripherals connected to two APB buses, two AHB buses and a 32-bit multi-AHB bus matrix.The STM32L432xx devices embed several protection mechanisms for embedded Flash memory and SRAM: readout protection, write protection, proprietary code readout protection and Firewall.The devices offer a fast 12-bit ADC (5 Msps), two comparators, one operational amplifier, two DAC channels, a low-power RTC, one general-purpose 32-bit timer, one 16-bit PWM timer dedicated to motor control, four general-purpose 16-bit timers, and two 16-bit low-power timers.In addition, up to 3 capacitive sensing channels are available.They also feature standard and advanced communication interfaces.The STM32L432xx operates in the -40 to +85 °C (+105 °C junction), -40 to +105 °C (+125 °C junction) and -40 to +125 °C (+130 °C junction) temperature ranges from a 1.71 to 3.6 V power supply. A comprehensive set of power-saving modes allows the design of low-power applications.Some independent power supplies are supported: analog independent supply input for ADC, DAC, OPAMP and comparatorsThe STM32L432xx family offers a single 32-pin package.STM32 Nucleo-32 development board with STM32L432.ST-LINK/V2 in-circuit debugger/programmer for ST.LTE Cellular to Cloud Pack with STM32L496AG MCU.Evaluation board with STM32L476ZG MCU.

Features

• Ultra-low-power with FlexPowerControl
  • 1.71 V to 3.6 V power supply
  • -40 °C to 85/105/125 °C temperature range
  • 8 nA Shutdown mode (2 wakeup pins)
  • 28 nA Standby mode (2 wakeup pins)
  • 280 nA Standby mode with RTC
  • 1.0 μA Stop 2 mode, 1.28 μA with RTC
  • 84 μA/MHz run 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
  • 176.7 ULPBench^® score
• Clock Sources
  • 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, USB, audio, ADC
• Up to 26 fast I/Os, most 5 V-tolerant
• RTC with HW calendar, alarms and calibration
• Up to 3 capacitive sensing channels
• 11x timers: 1x 16-bit advanced motor-control, 1x 32-bit and 2x 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 256 KB single bank Flash, proprietary code readout protection
  • 64 KB of SRAM including 16 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
  • 2x 12-bit DAC output channels,

Specifications