STM32L431RCT6 ARM Microcontrollers – MCU Ultra-low-power FPU Arm Cortex-M4 MCU 80 MHz 256 Kbytes of Flash

Short Description:

Manufacturers:STMicroelectronics

Product Category:ARM Microcontrollers – MCU

Data Sheet:STM32L431RCT6

Description:IC MCU 32BIT 256KB FLASH 64LQFP

RoHS status:RoHS Compliant


Product Detail

Features

Product Tags

♠ Product Description

Product Attribute Attribute Value
Manufacturer: STMicroelectronics
Product Category: ARM Microcontrollers - MCU
RoHS:  Details
Series: STM32L431RC
Mounting Style: SMD/SMT
Package / Case: LQFP-64
Core: ARM Cortex M4
Program Memory Size: 256 kB
Data Bus Width: 32 bit
ADC Resolution: 12 bit
Maximum Clock Frequency: 80 MHz
Number of I/Os: 52 I/O
Data RAM Size: 64 kB
Supply Voltage - Min: 1.71 V
Supply Voltage - Max: 3.6 V
Minimum Operating Temperature: - 40 C
Maximum Operating Temperature: + 85 C
Packaging: Tray
Brand: STMicroelectronics
DAC Resolution: 12 bit
Data RAM Type: SRAM
Interface Type: CAN, I2C, LPUART, SAI, SPI, USART
Moisture Sensitive: Yes
Number of ADC Channels: 16 Channel
Number of Timers/Counters: 11 Timer
Processor Series: STM32L4
Product: MCU+FPU
Product Type: ARM Microcontrollers - MCU
Program Memory Type: Flash
Factory Pack Quantity: 960
Subcategory: Microcontrollers - MCU
Tradename: STM32
Watchdog Timers: Watchdog Timer, Windowed
Unit Weight: 0.012335 oz

♠ Ultra-low-power Arm® Cortex®-M4 32-bit MCU+FPU, 100DMIPS, up to 256KB Flash, 64KB SRAM, analog, audio

The STM32L431xx devices are the ultra-low-power microcontrollers based on the highperformance 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 STM32L431xx devices embed high-speed memories (Flash memory up to 256 Kbyte, 64 Kbyte of SRAM), a Quad SPI flash memories interface (available on all packages) 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 STM32L431xx 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, an internal voltage reference buffer, 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.


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  • • Ultra-low-power with FlexPowerControl

      – 1.71 V to 3.6 V power supply

      – -40 °C to 85/105/125 °C temperature range

      – 200 nA in VBAT mode: supply for RTC and 32×32-bit backup registers

      – 8 nA Shutdown mode (5 wakeup pins) 

      – 28 nA Standby mode (5 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

      – 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

    • 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, low-power sample and hold

      – 1x operational amplifier with built-in PGA

      – 2x ultra-low-power comparators

    • 16x communication interfaces – 1x SAI (serial audio interface)

      – 3x I2C FM+(1 Mbit/s), SMBus/PMBus

      – 4x USARTs (ISO 7816, LIN, IrDA, modem)

      – 1x LPUART (Stop 2 wake-up)

      – 3x SPIs (and 1x Quad SPI)

      – CAN (2.0B Active) and SDMMC interface

      – SWPMI single wire protocol master I/F

      – IRTIM (Infrared interface)

    • 14-channel DMA controller

    • True random number generator

    • CRC calculation unit, 96-bit unique ID

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