STMicroelectronics STM32L496AGI3

Overview

STM32L496AGI3 from STMicroelectronics is an ultra-low-power Arm® Cortex®-M4 32-bit MCU with FPU, 80 MHz max frequency, 1 MB flash, 320 KB SRAM, and integrated USB OTG FS, audio interfaces (SAI), HASH (SHA-256), and external SMPS support. It operates from 1.71–3.6 V across –40 °C to 125 °C, delivers 100 DMIPS, and targets battery-powered industrial sensors, portable medical devices, and smart metering endpoints requiring long runtime and cryptographic integrity.

For engineers reviewing the STM32L496AGI3 datasheet, STM32L496AGI3 pinout, STM32L496AGI3 application, or STM32L496AGI3 equivalent, this page provides verified low-power mode current values (e.g., 25 nA Shutdown, 426 nA Standby with RTC), validated peripheral integration (dual CAN 2.0B, DCMI up to 32 MHz B&W), package-specific pin mapping (UFBGA132), and functional alternatives for migration or dual-sourcing.

Technical Context

The STM32L496AGI3 implements FlexPowerControl architecture with three voltage scaling ranges (VOS0–VOS2) and dynamic power switching between LDO and external SMPS (1.1 V core supply). Its ART Accelerator enables zero-wait-state execution from flash at 80 MHz, while the interconnect matrix decouples CPU, DMA, and peripheral bus access to sustain real-time throughput under mixed workloads.

It integrates dual-bank flash with read-while-write capability, hardware parity on 64 KB of SRAM, and a dedicated Chrom-ART Accelerator (DMA2D) for GUI rendering. The analog subsystem includes three 12-bit ADCs (5 Msps aggregate), two 12-bit DACs, two op-amps with PGA, and two ultra-low-power comparators - all supported by independent VDDA/VREF+ supplies for noise isolation.

Key Specifications

Pinout & Package

STM32L496AGI3 is housed in a 132-ball Ultra-Fine-Pitch Ball Grid Array (UFBGA132) package with 0.4 mm ball pitch and 7 mm × 7 mm body size. This package supports high I/O density and thermal efficiency for compact, battery-operated designs.

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 STM32L496AGI3 adds QUADSPI, DCMI, and dual-bank flash for firmware resilience and imaging - while STM32U575ZIT6 trades those for PSA-certified security and sub-20 µA/MHz efficiency, making it optimal for zero-trust edge deployments.

Availability

STM32L496AGI3 is available at Aetrix Electronics and suitable for industrial sensor nodes, portable medical monitors, smart electricity meters, and secure IoT gateways requiring stable component supply across extended temperature and lifecycle requirements.

Supply support for STM32L496AGI3 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, designing and manufacturing microcontrollers, power management ICs, MEMS, and automotive chips with emphasis on energy efficiency and system integration.

The STM32L4 series targets ultra-low-power embedded applications demanding rich peripherals, cryptographic acceleration, and multi-year battery life - balancing performance, security, and power across industrial, healthcare, and smart infrastructure markets.

FAQ

What is the maximum operating temperature for STM32L496AGI3?

The STM32L496AGI3 is qualified for operation from –40 °C to +125 °C ambient temperature, meeting industrial and extended-temperature requirements. This rating is validated per ST's DS11585 Rev 20 specification and applies to all UFBGA132 variants, including the AGI3 suffix denoting the 125 °C grade.

Does STM32L496AGI3 support external SMPS control?

Yes - the STM32L496AGI3 includes dedicated SMPS control signals (SMPS_EN, SMPS_VOS, SMPS_SW) to directly drive an external buck converter, enabling dynamic voltage scaling down to 1.1 V core supply. This reduces active-mode current to 37 µA/MHz and is fully supported in HAL and CubeMX toolchains.

How many I/O pins are accessible in the UFBGA132 package?

The UFBGA132 package provides 111 user-accessible I/O pins (of up to 136 total GPIOs on the die), with most rated 5 V-tolerant and configurable for multiple alternate functions. Pin assignments are defined in Section 4 ("Pinouts and pin description") of DS11585 Rev 20, Table 15.

Is USB OTG FS functionality available without external components?

Yes - the STM32L496AGI3 integrates a full-speed USB OTG transceiver with internal pull-up resistors and BCD (Battery Charging Detection) logic. Only a single 1.5 kΩ pull-up on D+ (for device mode) or external switch (for host/device role negotiation) is required; no external PHY or level shifters are needed.