The STM32L4R5xx, STM32L4R7xx and STM32L4R9xx devices are an ultra-low-power microcontrollers family (STM32L4+ Series) based on the high-performance Arm® Cortex®-M4 32-bit RISC core. They operate at a frequency of up to 120 MHz.
The Cortex-M4 core features a single-precision floating-point unit (FPU), which supports all the Arm® single-precision data-processing instructions and all the data types. The Cortex-M4 core also implements a full set of DSP (digital signal processing) instructions and a memory protection unit (MPU) which enhances the application’s security.
These devices embed high-speed memories (2 Mbytes of Flash memory and 640 Kbytes of SRAM), a flexible external memory controller (FSMC) for static memories (for devices with packages of 100 pins and more), two OctoSPI 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 STM32L4Rxxx devices embed several protection mechanisms for embedded Flash memory and SRAM: readout protection, write protection, proprietary code readout protection and a firewall.
These devices offer a fast 12-bit ADC (5 Msps), two comparators, two operational amplifiers, two DAC channels, an internal voltage reference buffer, a low-power RTC, two general-purpose 32-bit timer, two 16-bit PWM timers dedicated to motor control, seven general-purpose 16-bit timers, and two 16-bit low-power timers. The devices support four digital filters for external sigma delta modulators (DFSDM). In addition, up to 24 capacitive sensing channels are available.
They also feature standard and advanced communication interfaces such as:
Three USARTs, two UARTs and one low-power UART
One USB OTG full-speed
The devices operate in the -40 to +85 °C (+105 °C junction) and -40 to +125 °C (+130 °C junction) temperature ranges from a 1.71 to 3.6 V for VDD power supply when using internal LDO regulator and a 1.05 to 1.32 V VDD12 power supply when using external SMPS supply. A comprehensive set of power-saving modes allows the design of low-power applications.
Some independent power supplies are supported like an analog independent supply input for ADC, DAC, OPAMPs and comparators, a 3.3 V dedicated supply input for USB and up to 14 I/Os, which can be supplied independently down to 1.08 V. A VBAT input allows to backup the RTC and backup the registers. Dedicated VDD12 power supplies can be used to bypass the internal LDO regulator when connected to an external SMPS.
The STM32L4Rxxx family offers six packages from 100-pin to 169-pin.
|DS12023: Ultra-low-power Arm® Cortex®-M4 32-bit MCU+FPU, 150DMIPS, up to 2MB Flash, 640KB SRAM, LCD-TFT & MIPI DSI, ext. SMPS||4.0||5 MB|
|AN4894: EEPROM emulation techniques and software for STM32L4 and STM32L4+ Series microcontrollers||2.0||583 KB|
|AN1181: Electrostatic discharge sensitivity measurement||1.6||49 KB|
|AN4555: Getting started with STM32L4 Series and STM32L4+ Series hardware development||7.0||1 MB|
|AN4990: Getting started with sigma-delta digital interface on applicable STM32 microcontrollers||1.0||1 MB|
|AN5051: Graphic memory optimization with STM32 Chrom-GRC™||1.0||736 KB|
|AN4750: Handling of soft errors in STM32 applications||2.1||410 KB|
|AN4803: High-speed SI simulations using IBIS and board-level simulations using HyperLynx SI on STM32 32-bit ARM® Cortex® MCUs||1.1||2 MB|
|AN2834: How to get the best ADC accuracy in STM32 microcontrollers||3.1||1 MB|
|AN4229: How to implement a vocoder solution using STM32 microcontrollers||1.1||466 KB|
|AN5156: Introduction to STM32 microcontrollers security||1.0||3 MB|
|AN4809: Migrating between STM32L0 Series and STM32L4 Series / STM32L4+ Series microcontrollers||5.0||1 MB|
|AN5017: Migrating between STM32L476xx/486xx and STM32L4+ Series microcontrollers||1.0||501 KB|
|AN4649: Migrating from STM32F1 Series to STM32L4 Series / STM32L4+ Series microntrollers||7.0||1 MB|
|AN4831: Migrating from STM32F2x5 line to STM32L4 Series and STM32L4+ Series microcontrollers||5.0||1 MB|
|AN4832: Migrating from STM32F303 line to STM32L4 Series and STM32L4+ Series microcontrollers||5.0||878 KB|
|AN4616: Migrating from STM32F401 and STM32F411 lines to STM32L4 Series and STM32L4+ Series microcontrollers||7.0||1 MB|
|AN4821: Migrating from STM32F405/415 line and STM32F407/417 line to STM32L4 Series and STM32L4+ Series microcontrollers||5.0||1 MB|
|AN4612: Migrating from STM32L1 Series to STM32L4 Series and STM32L4+ Series microcontrollers||7.0||1 MB|
|AN5050: Octal-SPI interface (OctoSPI) on STM32L4+ Series||2.0||1 MB|
|AN2867: Oscillator design guide for STM8AF/AL/S and STM32 microcontrollers||11.0||2 MB|
|AN5224: STM32 DMAMUX: the DMA request router||3.0||255 KB|
|AN4989: STM32 microcontroller debug toolbox||2.0||5 MB|
|AN4726: STM32Cube firmware examples for STM32L4 Series and STM32L4+ Series||12.0||488 KB|
|AN4621: STM32L4 and STM32L4+ ultra-low-power features overview||4.0||514 KB|
|AN4879: USB hardware and PCB guidelines using STM32 MCUs||4.0||334 KB|
|AN4655: Virtually increasing the number of serial communication peripherals in STM32 applications||1.1||338 KB|
|TN1163: Description of WLCSP for microcontrollers and recommendations for its use||4.0||1 MB|
|TN1204: Tape and reel shipping media for STM32 microcontrollers in BGA packages||2.1||745 KB|
|TN1205: Tape and reel shipping media for STM8 and STM32 microcontrollers in FPN packages||3.0||753 KB|
|TN1206: Tape and reel shipping media for STM8 and STM32 microcontrollers in QFP packages||3.0||830 KB|
|TN1207: Tape and reel shipping media for STM8 and STM32 microcontrollers in SO packages||1.0||755 KB|
|TN1208: Tape and reel shipping media for STM8 and STM32 microcontrollers in TSSOP and SSOP packages||1.0||743 KB|
|PM0214: STM32F3 Series, STM32F4 Series, STM32L4 Series and STM32L4+ Series Cortex®-M4 programming manual||6.0||3 MB|
|ES0393: STM32L4Rxxx and STM32L4Sxxx device errata||4.0||422 KB|
|DT0117: MIcrophone array beamforming in the PCM and PDM domain||1.0||3 MB|
|STM32L4+ OrCad Symbol and Footprint files||1.1||1 MB|
|STM32L4+ System View Description||1.0||903 KB|
|STM32L4R5/4S5/4R7/4S7/4R9/4S9 IBIS File||1.0||6 MB|
|STM32L4R5/4S5/4R7/4S7/4R9/4S9 BSDL File||2.0||64 KB|
|STM32 Development Boards Portfolio||1.0||3 MB|
|STM32 and STM8 Functional Safety Packages||3.2||1 MB|
|STM32 and STM8 embedded software solutions||6.0||2 MB|
|STM32L4+ MCU series - Excellence in ultra-low-power with more performance||1.0||1 MB|
|STM32 Nucleo boards - Unified scalable offering||19.01||1 MB|
|STM32 for makers - Releasing your creativity||18.01||1 MB|
|STM32L4+ Series - Ultra-low-power and more performance||18.05||492 KB|
|STM32L5 Series - Excellence in ultra-low-power with more security||18.10||240 KB|
|STM32 32-bit MCU family - Leading supplier of Arm® Cortex®-M microcontrollers||18.02||2 MB|
|STM32L series - Ultra-low-power 32-bit MCUs||18.11||3 MB|
|Design & Elektronik magazine - Benchmark ULPBench debunked||1.1||12 MB|
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|Part Number||Package||Packing Type||Operating Temperature (°C) (min)||Operating Temperature (°C) (max)||SMPS||Marketing Status||Unit Price (US$) *||Quantity||ECCN (US)||Country of Origin||More info||Order from ST||Order from Distributors|
|STM32L4R5QGI6TR||-||Tape And Reel||-40||85||-||Active : Product is in volume production||6.7577||10000||3A991A2||PHILIPPINES||MORE INFO||No availability reported, please contact our Sales office|
|STM32L4P5QGI6||UFBGA 7X7X0.6 132L P 0.5 R 12X12||Tray||-||-||-||Preview : Product is in design stage||-||-||3A991A2||-||MORE INFO||No availability reported, please contact our Sales office|
|STM32L4R5QGI6||UFBGA 7X7X0.6 132L P 0.5 R 12X12||Tray||-40||85||External||Active : Product is in volume production||6.7577||10000||3A991A2||PHILIPPINES||MORE INFO||DISTRIBUTOR AVAILABILITY|
|STM32L4P5QGI6P||UFBGA 7X7X0.6 132L P 0.5 R 12X12||Tray||-||-||External||Preview : Product is in design stage||-||-||3A991A2||-||MORE INFO||No availability reported, please contact our Sales office|
|Part Number||Marketing Status||Package||Grade||RoHS Compliance Grade||Material Declaration**|
|STM32L4P5QGI6||Preview||UFBGA 7X7X0.6 132L P 0.5 R 12X12||Industrial||Ecopack2|
|STM32L4R5QGI6||Active||UFBGA 7X7X0.6 132L P 0.5 R 12X12||Industrial||Ecopack2|
|STM32L4P5QGI6P||Preview||UFBGA 7X7X0.6 132L P 0.5 R 12X12||Industrial||Ecopack2|
(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.