STMicroelectronics STM32L475RCT3

Mfr. Part

STM32L475RCT3

Manufacturer

STMicroelectronics

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Detailed Description

Ultra low power 32‑bit ARM Cortex‑M4 microcontroller running up to 80 MHz with 256 KB embedded Flash and 128 KB RAM in a 64‑LQFP package

Wide supply range 1.71 V to 3.6 V and industrial grade temperature range from minus 40°C to 125°C

Rich analog and digital peripherals including 12‑bit ADC with up to 16 channels and 2 x 12‑bit DAC

Multiple communication interfaces including CAN, I2C, SPI, QSPI, UART USART, LIN, IrDA, SAI, MMC SD, SWPMI, and USB OTG FS

Designed for battery powered and energy sensitive systems with multiple low power modes and an internal oscillator

Key Features

CPU and performance

- ARM Cortex‑M4 32‑bit core up to 80 MHz

- Single core with DSP instruction support

Memory

- 256 KB embedded Flash program memory

- 128 KB SRAM for data

Operating conditions

- Supply voltage 1.71 V to 3.6 V

- Operating temperature minus 40°C to 125°C

- RoHS3 compliant

Peripherals and timers

- Brown‑out detect and reset

- DMA for efficient peripheral to memory transfers

- PWM outputs and watchdog timer

- Real‑time clock support with low speed oscillator options

Connectivity

- CAN bus for robust industrial networking

- I2C, SPI, QSPI for sensor and memory expansion

- UART USART with LIN and IrDA support

- USB OTG FS for device or OTG connectivity

- SAI for digital audio

- MMC SD interface for removable storage

- SWPMI for single wire communication

Analog

- 12‑bit ADC with up to 16 input channels

- 2 x 12‑bit DAC for waveform generation or biasing

Clocking

- Internal oscillator available for simple design and fast startup

- Supports external crystals if desired

Package

- 64‑LQFP 10 x 10 mm body

- 51 general purpose I O pins available

Development ecosystem

- Broad STM32L4 software libraries and tools

- Compatible with STM32CubeMX and popular IDEs

Key Advantages

Ultra low power operation makes it ideal for long battery life designs

Industrial temperature rating supports harsh environments

Rich connectivity mix reduces the need for external interfaces

Balanced memory configuration 256 KB Flash and 128 KB RAM suits mid complexity applications

Strong analog subsystem for sensing and control with 12‑bit ADC and 2 x 12‑bit DAC

Proven STM32L4 platform with extensive software examples and middleware shortens development time

Flexible supply range simplifies power system design from coin cells to 3.3 V rails

Packaging

Package type 64‑LQFP tray

Body size approximately 10 x 10 mm typical LQFP64

Lead pitch typically 0.5 mm with 64 gull‑wing leads

Material epoxy molded plastic package with copper leadframe and matte tin lead finish RoHS3 compliant halogen free per manufacturer norms

Pin configuration 64 pins with up to 51 GPIOs multiplexed with peripherals check pin mux in datasheet

Mounting surface mount compatible with standard leaded reflow profiles

Moisture sensitivity LQFP packages are commonly MSL 3 at 260°C reflow verify the exact MSL on the product label or datasheet

Thermal characteristics designed for ambient operation from minus 40°C to 125°C use solid ground planes and thermal vias under exposed copper to improve heat spreading typical θJA depends on PCB stackup and airflow

Electrical properties

- Core supply 1.71 V to 3.6 V

- Clock up to 80 MHz with internal oscillator

- USB OTG FS interface requires 3.3 V domain support and proper clocking see datasheet

- ADC and DAC performance depends on reference and layout care use clean analog ground and decoupling

Lifecycle

Product status active in production at the time of writing and not near discontinuation based on public STMicroelectronics information

Compatible and alternative models within the same family

- STM32L475RET x same core family and features in 64‑LQFP with larger Flash 512 KB check pin mapping and memory differences

- STM32L476RCT x similar pinout in 64‑LQFP adds additional features such as enhanced analog and digital filters verify functional differences

- STM32L486RCT x same package class with added security and feature extensions confirm availability and pin compatibility

- STM32L452RCT x same Cortex‑M4 at 80 MHz with different peripheral mix may serve as a cost or feature tradeoff check missing interfaces

- STM32L433RCT x lower cost and lower peripheral density option for simplified designs evaluate memory and interface needs

Cross family and cross vendor options

- Other STM32L4x5 and L4x6 devices in 64‑LQFP may be pin compatible depending on feature set verify with the datasheet and ST’s cross reference

- For alternatives outside STM32 contact Y‑IC sales to match power, performance, and pin count with brands such as NXP, Microchip, Renesas, or TI

If you need exact pin compatible drop ins or automotive qualified variants please contact our sales team via the Y‑IC website for the latest cross references and availability

Key Application Areas

Battery powered IoT sensors and edge nodes

Wearables and portable health devices

Industrial control, data loggers, and condition monitoring

Smart meters and energy harvesting designs

USB gadgets, HID devices, and gateways

Audio interfaces and voice enabled peripherals via SAI

Consumer and white goods control panels

Instrumentation that needs accurate ADC and DAC functions

Datasheet

Y‑IC provides the most authoritative and up to date datasheet for STM32L475RCT3 on our product page

We recommend you download the datasheet directly from our website for complete electrical characteristics, pinouts, timing, PCB footprint, and design guidelines

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