STMicroelectronics STM32L496RGT3

Overview

STM32L496RGT3 from STMicroelectronics is an ultra-low-power Arm® Cortex®-M4 32-bit MCU with FPU, operating up to 80 MHz (100 DMIPS), featuring 1 MB flash, 320 KB SRAM, USB OTG FS, hardware SHA-256 accelerator, and integrated SMPS support. It targets battery-powered IoT edge nodes, portable medical devices, and industrial sensor hubs requiring long runtime and cryptographic integrity.

For engineers reviewing the STM32L496RGT3 datasheet, STM32L496RGT3 pinout, STM32L496RGT3 application, or STM32L496RGT3 equivalent, key selection criteria include its 37 µA/MHz SMPS-run efficiency, dual-bank flash for seamless firmware updates, 2.57 µA Stop 2 mode, Chrom-ART DMA2D graphics acceleration, and 24-channel capacitive touch sensing capability.

Technical Context

The STM32L496RGT3 implements an Arm Cortex-M4 core with FPU and Adaptive Real-time Accelerator (ART) enabling zero-wait-state execution from flash at 80 MHz. Its FlexPowerControl architecture supports seven low-power modes - including Shutdown (25 nA), Standby with RTC (426 nA), and Stop 2 (2.57 µA) - managed via dedicated power control registers and voltage scaling.

It integrates a multi-layer AHB/APB interconnect matrix, dual-bank flash with read-while-write capability, and hardware security features including HASH (SHA-256), true random number generator (RNG), and 96-bit unique ID. Peripheral routing is configurable via alternate function mapping across 136 I/Os, most 5 V-tolerant, with independent supply options down to 1.08 V for I/O banks.

Key Specifications

Pinout & Package

LQFP64 (10 × 10 mm, 0.5 mm pitch) package with 64-pin configuration. Pin functions validated per STMicroelectronics DS11585 Rev 20, Section 4 (Pinouts and pin description).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar ultra-low-power Arm Cortex-M4 MCU applications.

Compared with STM32L476RG, the STM32L496RGT3 delivers 2.5× more SRAM and SMPS-driven efficiency critical for extended battery life; versus STM32U575ZIT6, it offers proven LQFP64 footprint compatibility and lower BOM cost for volume production without TrustZone overhead.

Availability

STM32L496RGT3 is available at Aetrix Electronics and suitable for wearable health monitors, smart utility meters, industrial wireless sensor nodes, and portable diagnostic devices requiring stable component supply across multi-year production cycles.

Supply support for STM32L496RGT3 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 management ICs, sensors, and automotive semiconductors since 1987.

The STM32L4 series is engineered for ultra-low-power embedded applications demanding extended battery life, cryptographic security, and rich peripheral integration - especially in portable, medical, and industrial edge devices.

FAQ

What is the maximum operating frequency and corresponding power consumption in Run mode?

The STM32L496RGT3 achieves 80 MHz maximum CPU frequency with 100 DMIPS performance. In Run mode with ART Accelerator enabled and external SMPS supplying VDD12 at 1.10 V, typical current consumption is 37 µA per MHz - resulting in ~2.96 mA total at 80 MHz. This value is measured with code executing from flash, cache enabled, and all peripherals disabled except system clocks.

Does STM32L496RGT3 support hardware-based secure boot and firmware authentication?

Yes - it includes a true random number generator (RNG), hardware SHA-256 accelerator (HASH), and 96-bit unique device ID. While it lacks TrustZone or dedicated secure boot ROM like the U5 series, ST's X-CUBE-SBSFU software package enables certified secure firmware updates using these hardware primitives, supporting AES-128 decryption and SHA-256 signature verification of signed images.

Which package and pin count does STM32L496RGT3 use, and is it RoHS-compliant?

The STM32L496RGT3 uses the LQFP64 (10 × 10 mm, 0.5 mm pitch) package with 64 pins. It is fully RoHS-compliant and halogen-free, meeting EU Directive 2011/65/EU and JEDEC J-STD-020 moisture sensitivity level MSL3. Full compliance documentation, including REACH and conflict minerals statements, is available via ST's product page under part number STM32L496RGT3.

Can the STM32L496RGT3 drive an LCD directly, and what resolution is supported?

Yes - it integrates a dedicated LCD controller supporting up to 8×40 or 4×44 segments with integrated step-up converter, eliminating need for external bias generators. It drives static, multiplexed (2–8 backplanes), and grayscale displays. No pixel-mapped graphics; resolution is defined by segment count, not pixels. For graphical LCDs, the Chrom-ART Accelerator (DMA2D) handles bitmap rendering to external parallel or SPI-connected displays.