Overview
The STM32L476ZET6 is a 32-bit ARM Cortex-M4 microcontroller from STMicroelectronics, part of the STM32L4 series. This ultra-low-power microcontroller is designed to balance power consumption with high processing performance. It features an ARM Cortex-M4 core with a Floating Point Unit (FPU) and ST's Adaptive Real-Time Accelerator (ART Accelerator™), operating at up to 80 MHz. The device is known for its dynamic voltage scaling, low-power peripherals, and advanced safety and security features.
Key Specifications
| Specification | Value |
|---|---|
| Brand | STMicroelectronics |
| Family Name | STM32L4 |
| Package Type | LQFP |
| Mounting Type | Surface Mount |
| Pin Count | 144 |
| Device Core | ARM Cortex M4 |
| Data Bus Width | 32-bit |
| Program Memory Size | 512 kB Flash |
| Maximum Frequency | 80 MHz |
| RAM Size | 128 kB |
| USB Channels | 1 x OTG |
| Number of PWM Units | 2 x 16-bit |
| Typical Operating Supply Voltage | 1.71 V to 3.6 V |
| Dimensions | 20.2 x 20.2 x 1.45 mm |
| Minimum Operating Temperature | -40 °C |
| Maximum Operating Temperature | +85 °C |
| Instruction Set Architecture | RISC |
| Number of ADC Units | 3 (24 x 12-bit ADCs) |
Key Features
- Ultra-low-power with FlexPowerControl: Dynamic voltage scaling, low-power peripherals available in Stop mode, and advanced safety and security features.
- ARM Cortex-M4 Core: 32-bit CPU with Floating Point Unit (FPU) and Adaptive Real-Time Accelerator (ART Accelerator™), operating at up to 80 MHz.
- Peripherals: Real Time Clock (RTC) with hardware calendar, alarms, and calibration; LCD controller; up to 24 capacitive sensing channels; 16 timers; and rich analog peripherals including ADC, DAC, Op Amp, and comparators.
- Communication Interfaces: USB OTG 2.0 full-speed, SAI, I²C, USART, SPI, CAN, SWPMI, and more.
- Memory and Interfaces: Up to 1 MB flash, 128 KB SRAM, external memory interface for static memories, and Quad SPI memory interface.
- Development Support: Serial Wire Debug (SWD), JTAG, Embedded Trace Macrocell™, and a true random number generator.
- Power Management: Low power modes including VBAT, Shutdown, Standby, and Stop modes with very low current consumption.
Applications
- Industrial Automation: Used in control systems, sensors, and actuators due to its robust peripherals and low power consumption.
- Medical Devices: Suitable for medical equipment requiring precise control and low power usage.
- Consumer Electronics: Found in various consumer devices such as smart home appliances, wearables, and handheld devices.
- Automotive Systems: Used in automotive control units, infotainment systems, and safety features.
- IoT Devices: Ideal for Internet of Things applications requiring efficient power management and robust communication interfaces.
Q & A
- What is the core architecture of the STM32L476ZET6?
The STM32L476ZET6 features an ARM Cortex-M4 32-bit core with a Floating Point Unit (FPU) and Adaptive Real-Time Accelerator (ART Accelerator™).
- What is the maximum operating frequency of the STM32L476ZET6?
The maximum operating frequency is 80 MHz.
- How much flash and RAM does the STM32L476ZET6 have?
The device has 512 kB of flash memory and 128 kB of SRAM.
- What are the key power management features of the STM32L476ZET6?
The device features dynamic voltage scaling, low-power peripherals in Stop mode, and various low power modes such as VBAT, Shutdown, Standby, and Stop modes.
- Does the STM32L476ZET6 support USB?
Yes, it supports USB OTG 2.0 full-speed.
- What types of communication interfaces are available on the STM32L476ZET6?
The device includes USB OTG 2.0, SAI, I²C, USART, SPI, CAN, SWPMI, and more.
- What is the operating temperature range of the STM32L476ZET6?
The operating temperature range is from -40 °C to +85 °C.
- Does the STM32L476ZET6 have any security features?
Yes, it includes features like a true random number generator, CRC calculation unit, and a 96-bit unique ID.
- What kind of development support does the STM32L476ZET6 offer?
The device supports Serial Wire Debug (SWD), JTAG, and Embedded Trace Macrocell™.
- What are some common applications of the STM32L476ZET6?
Common applications include industrial automation, medical devices, consumer electronics, automotive systems, and IoT devices.
