DRV8871DDAR

STM32L4A6VGT6 Description

The STM32L4A6VGT6 microcontrollers are ultra-low-power microcontrollers based on the high-performance Arm? Cortex?-M4 32-bit RISC core, which operates at up to 80 MHz. All Arm? single-precision data-processing commands and data formats are supported by the Cortex-M4 core's Floating point unit (FPU) single precision. Additionally, the STM32L4A6VGT6 includes a full set of DSP instructions as well as a memory protection unit (MPU), which improves application security.

STM32L4A6VGT6 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

• 320 nA in VBAT mode: supply for RTC and 32x32-bit backup registers

• 25 nA Shutdown mode (5 wakeup pins)

• 108 nA Standby mode (5 wakeup pins)

• 426 nA Standby mode with RTC

• 2.57 μA Stop 2 mode, 2.86 μA Stop 2 with RTC

• 91 μA/MHz run mode (LDO mode)

• 37 μA/MHz run mode (at 3.3 V SMPS mode)

• Batch acquisition mode (BAM)

• 5 μs wakeup from Stop mode

• Brownout reset (BOR) in all modes except shutdown

• 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, 100 DMIPS, and DSP instructions

• Performance benchmark

• 1.25 DMIPS/MHz (Drystone 2.1)

• 273.55 Coremark? (3.42 Coremark/MHz at 80 MHz)

• Energy benchmark

• 279 ULPMark? CP score

• 80.2 ULPMark? PP score

• 16 timers: 2x 16-bit advanced motor-control, 2x 32-bit and 5x 16-bit general-purpose, 2x 16-bit basic, 2x low-power 16-bit timers (available in Stop mode), 2x watchdogs, SysTick timer

• RTC with HW calendar, alarms, and calibration

• Up to 136 fast I/Os, most 5 V-tolerant, up to 14 I/Os with independent supply down to 1.08 V

• Dedicated Chrom-ART Accelerator for enhanced graphic content creation (DMA2D)

• 8- to 14-bit camera interface up to 32 MHz (black & white) or 10 MHz (color)

• Encryption hardware accelerator: AES (128/256-bit key), HASH (SHA-256)

• Memories

• 1 MB Flash, 2 banks read-while-write, proprietary code readout protection

• 320 KB of SRAM including 64 KB with hardware parity check

• External memory interface for static memories supporting SRAM, PSRAM, NOR, and NAND memories

• Dual-flash Quad SPI memory interface

• 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

• 3 PLLs for system clock, USB, audio, ADC

• LCD 8× 40 or 4× 44 with step-up converter

• Up to 24 capacitive sensing channels: support touchkey, linear, and rotary touch sensors

• 4x digital filters for sigma-delta modulator

• Rich analog peripherals (independent supply)

• 3× 12-bit ADCs 5 Msps, up to 16-bit with hardware oversampling, 200 μA/Msps

• 2x 12-bit DAC output channels, low-power sample, and hold

• 2x operational amplifiers with built-in PGA

• 2x ultra-low-power comparators

• 20x communication interfaces

• USB OTG 2.0 full-speed, LPM, and BCD

• 2x SAIs (serial audio interface)

• 4x I2C FM+(1 Mbit/s), SMBus/PMBus

• 5x U(S)ARTs (ISO 7816, LIN, IrDA, modem)

• 1x LPUART

• 3x SPIs (4x SPIs with the Quad SPI)

• 2x CANs (2.0B Active) and SDMMC

• 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

• Development support: serial wire debug (SWD), JTAG, Embedded Trace Macrocell?

STM32L4A6VGT6 Applications

• Data Acquisition

• Low-cost Sensor integration

• Low power Embedded devices

• Small data retention related purposes