Overview
The STM32L476JEY6TR is an ultra-low-power microcontroller from STMicroelectronics, part of the STM32L476xx family. It is based on the high-performance Arm® Cortex®-M4 32-bit RISC core, operating at frequencies up to 80 MHz. The device includes a Floating Point Unit (FPU) and supports all Arm® single-precision data-processing instructions and data types. It also features a full set of DSP instructions and a memory protection unit (MPU) for enhanced application security.
The microcontroller is designed for low-power applications, offering various power-saving modes and a wide range of peripherals and interfaces. It is suitable for a variety of applications requiring high performance and low energy consumption.
Key Specifications
| Parameter | Specification |
|---|---|
| Core | Arm® 32-bit Cortex®-M4 CPU with FPU, up to 80 MHz |
| Memory | Up to 1 MB flash, up to 128 KB SRAM |
| Power Supply | 1.71 V to 3.6 V, external SMPS support |
| Temperature Range | -40 °C to 85/105/125 °C |
| ADCs | Up to three 12-bit ADCs, 5 Msps |
| DACs | Two 12-bit DAC output channels |
| Timers | 16x timers: 2x 32-bit, 9x 16-bit, 2x low-power 16-bit timers |
| Communication Interfaces | USB OTG 2.0, 3x I2C, 3x SPI, 5x USART, CAN 2.0B, SDMMC |
| Package Options | WLCSP72, LQFP100, LQFP144, UFBGA132, UFBGA144, etc. |
Key Features
- Ultra-low-power with FlexPowerControl
- Includes ST state-of-the-art patented technology
- Adaptive real-time accelerator (ART Accelerator™) for 0-wait-state execution from flash memory
- Rich analog peripherals: 3x 12-bit ADCs, 2x 12-bit DACs, 2x operational amplifiers, 2x ultra-low-power comparators
- Integrated LCD driver 8x40 or 4x44 with internal step-up converter
- Up to 24 capacitive sensing channels for touchkey, linear, and rotary touch sensors
- 20x communication interfaces including USB OTG, I2C, SPI, USART, CAN, and SDMMC
- 14-channel DMA controller, true random number generator, and CRC calculation unit
- Development support: serial wire debug (SWD), JTAG, Embedded Trace Macrocell™
Applications
The STM32L476JEY6TR is suitable for a wide range of applications that require high performance and low power consumption. These include:
- Industrial automation and control systems
- Medical devices and healthcare equipment
- Consumer electronics and appliances
- Automotive systems and telematics
- IoT and smart home devices
- Energy metering and smart grid applications
Q & A
- What is the core architecture of the STM32L476JEY6TR?
The STM32L476JEY6TR is based on the Arm® 32-bit Cortex®-M4 CPU with a Floating Point Unit (FPU), operating at frequencies up to 80 MHz.
- What are the power supply options for this microcontroller?
The device operates from a 1.71 V to 3.6 V power supply and also supports external SMPS supply.
- What are the key analog peripherals available on this device?
The device includes 3x 12-bit ADCs, 2x 12-bit DACs, 2x operational amplifiers, and 2x ultra-low-power comparators.
- Does the STM32L476JEY6TR support capacitive sensing?
- What communication interfaces are available on this microcontroller?
The device features USB OTG 2.0, 3x I2C, 3x SPI, 5x USART, CAN 2.0B, and SDMMC interfaces.
- What are the power-saving modes available on the STM32L476JEY6TR?
The device offers various power-saving modes including Shutdown, Standby, Stop 2, and VBAT modes.
- What is the temperature range for the STM32L476JEY6TR?
The device operates in the -40 °C to 85/105/125 °C temperature range.
- Does the STM32L476JEY6TR support external memory interfaces?
- What development tools are available for the STM32L476JEY6TR?
The device supports serial wire debug (SWD), JTAG, and Embedded Trace Macrocell™ for development.
- Is the STM32L476JEY6TR RoHS compliant?
