STMicroelectronics STM32L496AGI6

Overview

STM32L496AGI6 from STMicroelectronics is an ultra-low-power Arm® Cortex®-M4 32-bit microcontroller with FPU, delivering 100 DMIPS at 80 MHz, featuring 1 MB flash, 320 KB SRAM, USB OTG FS, hardware SHA-256 acceleration, and integrated SMPS support. It targets battery-powered industrial sensors, portable medical devices, and energy-harvesting IoT endpoints requiring long runtime and rich peripheral integration.

For engineers reviewing the STM32L496AGI6 datasheet, STM32L496AGI6 pinout, STM32L496AGI6 application, or STM32L496AGI6 equivalent, key selection criteria include its 25 nA shutdown current, dual-bank flash for seamless firmware updates, Chrom-ART Accelerator for GUI rendering, and dual CAN 2.0B interfaces for robust fieldbus connectivity.

Technical Context

The device integrates an Adaptive Real-Time (ART) Accelerator enabling zero-wait-state execution from flash at 80 MHz, and a multi-layer AHB bus matrix supporting concurrent access to flash, SRAM, and peripherals. Its FlexPowerControl architecture implements seven low-power modes-including Stop 2 (2.57 µA) and Shutdown (25 nA)-with five dedicated wakeup pins and sub-5 µs wake-up latency.

Peripherals are partitioned across voltage domains: analog blocks (ADCs, DACs, OPAMPs, COMP) operate with independent supply down to 1.08 V; I/Os support 5 V tolerance; and clock system includes three PLLs (system, USB, audio) plus internal 48 MHz recovery for USB without external crystal.

Key Specifications

Pinout & Package

STM32L496AGI6 is housed in a 132-ball Ultra-Fine-Pitch Ball Grid Array (UFBGA132) package measuring 7 mm × 7 mm with 0.4 mm ball pitch. The package supports 117 general-purpose I/Os-most 5 V-tolerant-with up to 14 I/Os configurable for independent supply down to 1.08 V.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar ultra-low-power MCU applications.

Compared with STM32L476RG, STM32L496AGI6 adds SHA-256, Chrom-ART, and SMPS control for secure, graphical, and power-optimized designs; versus STM32U575ZIT6, it retains SAI/DCMI for audio/video edge processing at the cost of higher active current and no TrustZone.

Availability

STM32L496AGI6 is available at Aetrix Electronics and suitable for smart utility meters, portable medical monitors, and industrial wireless sensor nodes requiring stable component supply across multi-year production cycles.

Supply support for STM32L496AGI6 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing microcontrollers, power ICs, sensors, and automotive semiconductors since 1987.

The STM32L4 series targets ultra-low-power embedded applications demanding extended battery life, rich analog integration, and secure firmware execution-optimized for IoT edge nodes, wearables, and industrial monitoring systems.

FAQ

What is the maximum operating frequency and corresponding power supply configuration?

The STM32L496AGI6 achieves 80 MHz maximum CPU frequency using the internal 64 MHz PLL driven by the 4–48 MHz HSE crystal or the 16 MHz internal RC oscillator. For lowest active power, use external SMPS supplying VDD12 at 1.10 V, enabling 37 µA/MHz operation at 3.3 V VDD. LDO mode yields 91 µA/MHz under same conditions.

Does STM32L496AGI6 support hardware-based secure boot and firmware authentication?

Yes-it includes a true random number generator (RNG), hardware SHA-256 accelerator, and 96-bit unique ID. While it lacks TrustZone or secure ROM, these peripherals enable implementation of secure boot via signed firmware images verified in SRAM before flash update, meeting IEC 62443-3-3 SL2 requirements when combined with proper key management.

How many I/Os support independent VDDIO2 supply, and what is their minimum voltage?

Up to 14 I/Os (grouped as GPIO ports PI0–PI13) support independent VDDIO2 supply down to 1.08 V, enabling direct interfacing with ultra-low-voltage peripherals such as energy harvesters, MEMS sensors, or sub-1.2 V logic. This feature is configured via the PWR_CR3 register and requires external decoupling on VDDIO2.

Can the Chrom-ART Accelerator (DMA2D) drive an external RGB display without CPU intervention?

Yes-the DMA2D engine supports direct memory-to-memory and memory-to-peripheral transfers with alpha blending, color format conversion (RGB565 ↔ ARGB8888), and line addressing. When paired with the LTDC peripheral (not present on L496AGI6) it drives RGB displays; on this part, it accelerates framebuffer operations for SPI-driven OLEDs or LCDs via GPIO bit-banging or FSMC-controlled panels.