Overview
The STM32L476JGY6TR 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 a frequency of up to 80 MHz. This microcontroller features a Floating Point Unit (FPU) single precision, supporting all Arm® single-precision data-processing instructions and data types. It also includes a full set of DSP instructions and a memory protection unit (MPU) for enhanced application security.
The device is designed for low-power applications, offering various power-saving modes and a wide range of peripherals and interfaces. It is suitable for use in 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 |
| Memories | Up to 1 MB flash, up to 128 KB SRAM |
| Power Supply | 1.71 V to 3.6 V (internal LDO), 1.05 to 1.32 V (external SMPS) |
| Temperature Range | -40 °C to 85/105/125 °C |
| ADCs | Up to 3 fast 12-bit ADCs (5 Msps), up to 16-bit with hardware oversampling |
| DACs | 2x 12-bit DAC output channels, low-power sample and hold |
| Timers | 16x timers: 2x 16-bit advanced motor-control, 2x 32-bit, 5x 16-bit general purpose, 2x 16-bit basic, 2x low-power 16-bit timers |
| Communication Interfaces | USB OTG 2.0 full-speed, 2x SAIs, 3x I2C FM+, 3x SPIs, 3x USARTs, 1x LPUART, CAN (2.0B Active), SDMMC |
| Package | WLCSP 72 3.8x4.4x0.6 P 0.4 mm |
| Power Modes | 300 nA in VBAT mode, 30 nA Shutdown mode, 120 nA Standby mode, 420 nA Standby mode with RTC, 1.1 µA Stop 2 mode, 1.4 µA with RTC |
Key Features
- Ultra-low-power with FlexPowerControl and multiple power-saving modes.
- High-performance Arm® Cortex®-M4 core with FPU and DSP instructions.
- Up to 1 MB flash memory and up to 128 KB SRAM.
- Rich set of analog peripherals including 3x 12-bit ADCs, 2x 12-bit DACs, 2x operational amplifiers, and 2x ultra-low-power comparators.
- Extensive range of communication interfaces: USB OTG 2.0, SAIs, I2C, SPIs, USARTs, LPUART, CAN, and SDMMC.
- Integrated LCD driver 8x40 or 4x44 with internal step-up converter.
- Up to 24 capacitive sensing channels supporting touchkey, linear, and rotary touch sensors.
- RTC with hardware calendar, alarms, and calibration.
- True random number generator, CRC calculation unit, and 96-bit unique ID.
Applications
- Industrial automation and control systems.
- Medical devices requiring low power consumption and high performance.
- Consumer electronics such as smart home devices and wearables.
- Automotive systems, including infotainment and safety features.
- IoT devices and smart sensors.
- Energy metering and smart grid applications.
Q & A
- What is the core architecture of the STM32L476JGY6TR?
The STM32L476JGY6TR is based on the Arm® 32-bit Cortex®-M4 CPU with a Floating Point Unit (FPU).
- What is the power supply range for the STM32L476JGY6TR?
The device operates from a 1.71 V to 3.6 V power supply using the internal LDO regulator, and from 1.05 to 1.32 V using an external SMPS supply.
- What are the key power-saving modes of the STM32L476JGY6TR?
The device features several power-saving modes including VBAT mode (300 nA), Shutdown mode (30 nA), Standby mode (120 nA), and Stop 2 mode (1.1 µA).
- What types of communication interfaces are available on the STM32L476JGY6TR?
The device includes USB OTG 2.0, SAIs, I2C, SPIs, USARTs, LPUART, CAN (2.0B Active), and SDMMC interfaces.
- What is the maximum frequency of the STM32L476JGY6TR?
The device operates at a maximum frequency of 80 MHz.
- How much flash and SRAM memory does the STM32L476JGY6TR have?
The device has up to 1 MB of flash memory and up to 128 KB of SRAM.
- What are the temperature ranges for the STM32L476JGY6TR?
The device operates in the -40 °C to 85/105/125 °C temperature range.
- Does the STM32L476JGY6TR support capacitive sensing?
Yes, the device supports up to 24 capacitive sensing channels for touchkey, linear, and rotary touch sensors.
- What is the package type of the STM32L476JGY6TR?
The device is available in a WLCSP 72 3.8x4.4x0.6 P 0.4 mm package.
- Does the STM32L476JGY6TR have an integrated LCD driver?
Yes, the device includes an integrated LCD driver 8x40 or 4x44 with an internal step-up converter.
