STM32L476JEY6TR

Product Overview

• Category: Microcontroller
• Use: Embedded systems, Internet of Things (IoT) devices, and low-power applications
• Characteristics:
  • Low power consumption
  • High performance
  • Rich peripheral set
  • Secure boot and secure firmware update
  • Advanced analog features
• Package: LQFP64
• Essence: This microcontroller is designed to provide a balance between performance, power efficiency, and security for various embedded applications.
• Packaging/Quantity: Tape and reel, 2500 units per reel

Specifications

• Core: ARM Cortex-M4
• Clock Speed: Up to 80 MHz
• Flash Memory: 1 MB
• RAM: 128 KB
• Operating Voltage: 1.71V to 3.6V
• Digital I/O Pins: 51
• Analog Inputs: 16
• Communication Interfaces: UART, SPI, I2C, USB, CAN, Ethernet
• Timers: 16-bit and 32-bit timers
• ADC Resolution: Up to 16 bits
• DMA Channels: 12
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The STM32L476JEY6TR microcontroller has a total of 64 pins. The pin configuration is as follows:

• Pins 1-8: GPIO pins
• Pins 9-16: Analog input pins
• Pins 17-24: Communication interface pins (UART, SPI, I2C)
• Pins 25-32: Timer pins
• Pins 33-40: Power supply and ground pins
• Pins 41-48: External interrupt pins
• Pins 49-56: Additional GPIO pins
• Pins 57-64: Reserved pins

Functional Features

• Low-power modes for energy-efficient operation
• Hardware encryption and secure boot for enhanced security
• Rich set of peripherals including ADC, DAC, timers, communication interfaces, and more
• Flexible power supply options
• Real-time clock (RTC) with calendar and alarm functions
• Multiple low-power consumption modes for extended battery life

Advantages and Disadvantages

Advantages: - High-performance Cortex-M4 core - Low power consumption for energy-efficient applications - Secure boot and firmware update features enhance system security - Rich peripheral set allows for versatile application development - Advanced analog features enable precise measurements

Disadvantages: - Limited number of pins may restrict the complexity of some designs - Higher cost compared to lower-end microcontrollers - Steeper learning curve for beginners due to advanced features and complex documentation

Working Principles

The STM32L476JEY6TR microcontroller is based on the ARM Cortex-M4 core, which provides high performance and efficient processing capabilities. It operates at a clock speed of up to 80 MHz and offers a wide range of peripherals for various application requirements.

The microcontroller utilizes low-power modes to minimize energy consumption, making it suitable for battery-powered devices and IoT applications. It also incorporates hardware encryption and secure boot features to ensure the integrity and security of the firmware.

By leveraging its rich peripheral set, developers can implement various functionalities such as data acquisition, communication, and control in their embedded systems. The microcontroller's advanced analog features enable accurate measurements and sensor interfacing.

Detailed Application Field Plans

The STM32L476JEY6TR microcontroller finds applications in diverse fields, including but not limited to:

1. Internet of Things (IoT) devices: The low power consumption and rich peripheral set make it ideal for IoT applications such as smart home automation, environmental monitoring, and asset tracking.
2. Industrial automation: The microcontroller's high performance and secure features make it suitable for industrial control systems, motor control, and process automation.
3. Medical devices: Its advanced analog features and low power consumption are beneficial for medical devices like patient monitoring systems, portable diagnostic tools, and wearable health trackers.
4. Consumer electronics: The microcontroller can be used in various consumer electronic products such as smartwatches, fitness trackers, home appliances, and audio/video equipment.

Detailed and Complete Alternative Models

1. STM32L476JG: Similar to STM32L476JEY6TR but with a different package (LQFP64)
2. STM32L475VG: Lower-end variant with reduced flash memory (512 KB) and RAM (96 KB)
3. STM32L432KC: Entry-level microcontroller with lower performance and fewer peripherals
4. STM32F407VG: Higher-performance microcontroller with more flash memory (1 MB) and RAM (192 KB)

These alternative models offer varying levels of performance, memory, and peripheral options to cater to different application requirements.