The STM32L476ZGT6U from STMicroelectronics is a sophisticated 32-bit microcontroller belonging to the STM32L4 series, designed to address the demanding requirements of modern embedded applications where ultra-low power consumption, high performance, and rich peripheral integration are critical. This IC falls within the Embedded Microcontrollers category and represents a comprehensive solution for developers seeking to balance processing capability with energy efficiency in battery-powered and power-sensitive applications.
At its core, this microcontroller features an ARM Cortex-M4 processor operating at 80MHz, providing substantial computational power for complex algorithms and real-time processing tasks. The device incorporates 1MB of flash memory (organized as 1M x 8) for program storage and 128KB of RAM (128K x 8), offering ample space for sophisticated firmware and data handling. The single-core 32-bit architecture delivers efficient instruction execution while maintaining the low-power characteristics essential for portable and IoT devices.
The STM32L476ZGT6U comes in a 144-LQFP package measuring 20x20mm, designed for surface mount applications, making it suitable for space-constrained PCB designs while providing access to an extensive array of 114 I/O pins. This generous pin count enables developers to interface with numerous external components simultaneously without requiring additional expansion hardware. The device operates reliably across an industrial temperature range of -40°C to 85°C, ensuring consistent performance in harsh environmental conditions, and accepts a flexible supply voltage range of 1.71V to 3.6V, accommodating various power source configurations including battery-operated systems.
One of the standout features is the comprehensive peripheral set that addresses diverse design challenges. The microcontroller includes an integrated LCD controller, eliminating the need for external display drivers in applications requiring direct segment or matrix LCD control. It features 24 channels of 12-bit analog-to-digital converters and 2 channels of 12-bit digital-to-analog converters, providing precise analog signal processing capabilities for sensor interfacing and signal generation. The device incorporates essential safety and reliability features including brown-out detect/reset circuitry, watchdog timer (WDT), DMA controllers for efficient data transfer, and PWM capabilities for motor control and LED dimming applications.
Connectivity options are exceptionally robust, featuring CANbus for automotive and industrial networking, multiple UART/USART interfaces for serial communication, SPI and I²C for peripheral device interfacing, USB OTG for host and device functionality, QSPI for high-speed external memory access, SAI for digital audio applications, MMC/SD card interfaces, LINbus for automotive applications, IrDA for infrared communication, SWPMI for single-wire protocol, and EBI/EMI for external memory expansion. This extensive connectivity suite makes the microcontroller suitable for applications ranging from industrial automation and medical devices to consumer electronics and automotive systems. The internal oscillator simplifies board design by reducing external component requirements, though external clock sources can be used when higher precision timing is needed.
The STM32L476ZGT6U is RoHS3 compliant, meeting current environmental regulations for lead-free manufacturing. The product is available in tray packaging with a quantity of 2649 units, suitable for medium to high-volume production runs. Primary advantages include exceptional power efficiency characteristic of the STM32L4 series, extensive peripheral integration reducing bill-of-materials costs, robust connectivity options enabling versatile system architectures, and the proven ARM Cortex-M4 core with extensive development tool support.
Regarding equivalent or alternative models, the STM32L4 series offers several related options: the STM32L476ZGT6 (standard version without the 'U' suffix) provides similar functionality, while the STM32L486ZGT6 adds cryptographic acceleration features for security-critical applications. The STM32L475ZGT6 offers a similar feature set with slight peripheral variations, and the STM32L496ZGT6 provides enhanced performance with additional memory options. For applications requiring different package sizes, STMicroelectronics offers the same die in 100-pin LQFP (STM32L476VGT6) and 64-pin LQFP (STM32L476RGT6) variants, though with reduced I/O count. Competitors offering comparable ARM Cortex-M4 microcontrollers include the NXP LPC54xxx series, Microchip SAM L series, and Silicon Labs EFM32 Gecko family, though specific feature matching should be verified based on application requirements.
STM32L476ZGT6U Key Technical Attributes
Manufacturer: STMicroelectronics
Part Number: STM32L476ZGT6U
Memory: 1MB Flash, 128KB RAM
STM32L476ZGT6U Packing Size
The STM32L476ZGT6U is supplied in a 144-LQFP (Low Profile Quad Flat Package) measuring 20x20mm, suitable for surface mounting. The package features 114 I/O pins, offering a broad interface capability. It comes in a tray for ease of factory handling and efficient assembly processes. The 144-LQFP enclosure ensures optimal PCB usage and robust protection for the embedded microcontroller, while facilitating reliable thermal dissipation and electrical connectivity.
STM32L476ZGT6U Application
This microcontroller series is ideal for advanced embedded control systems in medical instruments, industrial automation, consumer electronic devices, smart metering, energy applications, and IoT nodes. Its comprehensive peripheral set and integrated connectivity options, such as CANbus, UART/USART, SPI, USB OTG, and more, make it suitable for applications requiring efficient data processing, reliable communication, and low-power operation.
STM32L476ZGT6U Features
The STM32L476ZGT6U is powered by a 32-bit ARM Cortex-M4 core, running at speeds up to 80MHz, ensuring potent real-time processing capabilities with DSP (Digital Signal Processing) instructions and a Floating Point Unit (FPU). It incorporates 1MB of Flash memory and 128KB of SRAM for extensive application storage and operation. The microcontroller supports advanced integrated peripherals such as 24 channels of 12-bit ADCs and 2 channels of 12-bit DACs for precise analog signal acquisition and generation. It offers a broad connectivity portfolio, including CANbus, EBI/EMI, IrDA, LINbus, MMC/SD, Quad-SPI, SAI, SWPMI, SPI, UART/USART, and USB OTG, catering to advanced and versatile communication needs. Additional integrated functions consist of Brown-out Detect/Reset, DMA controller, LCD segment drive, PWM for motor or lighting control, and Watchdog Timers. The operating voltage range (1.71V to 3.6V) and wide ambient temperature support (-40°C to +85°C) ensure suitability for both industrial and consumer environments. The on-chip oscillator enables stable operation with minimized external component requirements. The device is RoHS3 compliant, facilitating use in green application designs.
STM32L476ZGT6U Quality and Safety Features
The STM32L476ZGT6U complies with RoHS3 standards, guaranteeing environmentally responsible manufacturing. Integrated safety mechanisms such as hardware Brown-out Detect and Watchdog Timers help safeguard against power fluctuations and system faults, ensuring robust and reliable device operation in mission-critical applications. The embedded Flash memory and peripheral hardware are engineered for high endurance, data integrity, and protection against electrical and environmental stresses.
STM32L476ZGT6U Compatibility
This device is a member of the popular STM32L4 series, ensuring broad compatibility with existing STM32 development tools, middleware, and software libraries. The standard 144-LQFP footprint allows drop-in placement for any products or designs using compatible pin configurations within the STM32L4 family and related STMicroelectronics microcontrollers. It integrates seamlessly with ARM development environments and real-time operating systems, ensuring easy adaptation for engineers familiar with the ARM Cortex platform.
STM32L476ZGT6U Datasheet PDF
Our website provides the most authoritative and comprehensive datasheet PDF for the STM32L476ZGT6U. The datasheet is regularly updated, directly sourced from STMicroelectronics, and contains exhaustive technical details, pinouts, electrical characteristics, application guidelines, and reference designs. We highly recommend downloading this resource from the current product page to assist you in design-in and evaluation processes.
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