STMicroelectronics STM32L496AEI6

Overview

STM32L496AEI6 from STMicroelectronics is an ultra-low-power Arm® Cortex®-M4 32-bit MCU with FPU, 80 MHz max frequency, 512 KB flash, 320 KB SRAM, and integrated USB OTG FS, HASH (SHA-256), and external SMPS support. It delivers 100 DMIPS and operates from 1.71–3.6 V across –40 °C to +85 °C, targeting battery-powered industrial sensors and portable medical devices.

For engineers reviewing the STM32L496AEI6 datasheet, STM32L496AEI6 pinout, STM32L496AEI6 application, or STM32L496AEI6 equivalent, key selection criteria include its 2.86 µA Stop 2 mode with RTC, 37 µA/MHz SMPS-run efficiency, dual-bank flash for read-while-write, Chrom-ART Accelerator for GUI rendering, and 24-channel capacitive touch sensing capability.

Technical Context

The STM32L496AEI6 integrates an Adaptive Real-time Accelerator (ART) enabling zero-wait-state execution from flash at 80 MHz, alongside a memory protection unit (MPU) and interconnect matrix for deterministic peripheral arbitration. Its power architecture includes three voltage scaling modes (VOS0–VOS2), brownout reset in all active modes, and batch acquisition mode (BAM) for sensor hub operation without CPU wake-up.

It features dual 12-bit ADCs (5 Msps, hardware oversampling up to 16-bit), two 12-bit DACs with sample-and-hold, two rail-to-rail op-amps with programmable gain, and two ultra-low-power comparators-all with independent analog supply domains. Clocking includes three PLLs (system, USB, audio), internal 48 MHz RC with clock recovery, and LSE/LP-LSE oscillators for RTC accuracy.

Key Specifications

Pinout & Package

STM32L496AEI6 is housed in a 132-ball UFBGA package (7 × 7 mm, 0.4 mm pitch) with 115 user I/Os, most 5 V-tolerant, and up to 14 I/Os supporting independent 1.08–3.6 V supply. Ball pitch and thermal pad design comply with JEDEC MO-277.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32L476RG, the STM32L496AEI6 adds QUADSPI and SAI for external memory/audio expansion; versus STM32U575ZI, it retains DCMI and Chrom-ART for embedded vision/UI but trades PSA-certified security for analog integration density.

Availability

STM32L496AEI6 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 extended product lifecycles.

Supply support for STM32L496AEI6 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, MEMS, and automotive semiconductors since 1987.

The STM32L4 series targets ultra-low-power embedded applications demanding rich analog integration, cryptographic acceleration, and long battery life-optimized for IoT edge nodes, portable medical equipment, and energy metering systems.

FAQ

What is the maximum operating frequency and associated performance metric?

The STM32L496AEI6 runs at up to 80 MHz with the ART Accelerator enabled, delivering 100 DMIPS and 3.42 CoreMark/MHz (273.55 total CoreMark). This performance is sustained with zero flash wait states, verified under 3.3 V supply and VOS1 voltage scaling mode per DS11585 Rev 20 Section 3.1.

Does STM32L496AEI6 support external SMPS, and what are the measurable efficiency gains?

Yes-it integrates SMPS control logic and supports external buck regulators via VDD12 pin. In SMPS mode, active current drops to 37 µA/MHz (vs 91 µA/MHz in LDO mode), reducing power consumption by 59% at 80 MHz, as measured in Table 27 of DS11585 Rev 20.

How many capacitive sensing channels does it provide, and what sensor types are supported?

The device integrates a 24-channel touch sensing controller (TSC) supporting touchkey, linear touch sliders, and rotary touch wheels. Each channel supports spread-spectrum modulation and automatic calibration, enabling robust operation in noisy industrial environments per Section 3.22 of the datasheet.

What packaging and RoHS compliance status applies to STM32L496AEI6?

STM32L496AEI6 uses a UFBGA132 package (7 × 7 mm, 0.4 mm pitch) with lead-free, halogen-free, and RoHS-compliant construction (ECOPACK2). The device marking "L496AEI6" and date code appear on the top surface, and thermal characteristics meet JEDEC JESD51-2 standards per Section 7.4 of DS11585 Rev 20.