STMicroelectronics STM32L496ZGT6

Overview

STM32L496ZGT6 from STMicroelectronics is an ultra-low-power Arm® Cortex®-M4 32-bit MCU 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 operates across -40 °C to 125 °C, achieves 37 µA/MHz in SMPS-run mode, and enables sub-µA low-power states including 426 nA Standby with RTC-ideal for battery-powered industrial sensors and portable medical devices.

For engineers reviewing the STM32L496ZGT6 datasheet, STM32L496ZGT6 pinout, STM32L496ZGT6 application, or STM32L496ZGT6 equivalent, key selection criteria include verified ultra-low-power operation down to 25 nA (Shutdown), dual-bank flash for seamless firmware updates, hardware cryptographic acceleration (HASH), and full peripheral integration including two CAN 2.0B interfaces, SAI audio, and Chrom-ART DMA2D for GUI rendering.

Technical Context

The STM32L496ZGT6 implements an Adaptive Real-time Accelerator (ART) enabling zero-wait-state execution from flash at 80 MHz, paired with a Memory Protection Unit (MPU) and interconnect matrix for deterministic peripheral arbitration. Its power architecture integrates three voltage regulators (LDO/SMPS/bypass) and FlexPowerControl logic supporting seven low-power modes with precise wakeup latency control.

It features dual-clock domain design: one for system/peripherals (up to 80 MHz via PLL) and another for audio/USB (48 MHz with CRS clock recovery). Analog subsystem includes three independent 12-bit ADCs (5 Msps total), two DACs, two op-amps with PGA, and two ultra-low-power comparators-all with dedicated VDDA supply for noise isolation.

Key Specifications

Pinout & Package

LQFP144 package with 144 leads, 0.5 mm pitch, exposed thermal pad, JEDEC standard footprint. Pinout validated per STMicroelectronics DS11585 Rev 20 Section 4 ("Pinouts and pin description") and Table 15 ("STM32L496xx pin definitions").

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 STM32L496ZGT6 adds SMPS control, QUADSPI, dual SAI, and Chrom-ART-enabling richer HMI and longer battery life. Versus STM32U575ZIT6, it retains CAN, SAI, and analog integration critical for industrial/audio use cases, despite lacking TrustZone.

Availability

STM32L496ZGT6 is available at Aetrix Electronics and suitable for industrial sensor nodes, portable medical monitors, smart energy meters, and audio-enabled IoT gateways requiring stable component supply across extended product lifecycles.

Supply support for STM32L496ZGT6 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 high performance-per-milliwatt, combining energy efficiency with rich analog/multimedia peripherals for battery-operated and energy-harvesting systems.

FAQ

What is the maximum operating temperature range for STM32L496ZGT6?

The STM32L496ZGT6 is qualified for industrial and extended temperature operation from -40 °C to +125 °C, as confirmed in Section 6.3.1 of DS11585 Rev 20. This rating applies to all LQFP144 variants and is validated under full electrical specification compliance, including flash endurance and analog accuracy.

Does STM32L496ZGT6 support external SMPS control, and how is it implemented?

Yes-it integrates dedicated SMPS control logic with VDD12/VDD12_IO outputs and feedback monitoring (VSENSE). The internal regulator can be bypassed to directly drive core logic from an external SMPS, reducing active-mode current to 37 µA/MHz. Configuration is managed via PWR_CR3 register bits (ENSMPS, VOS).

How many independent ADC instances does STM32L496ZGT6 provide, and what is their combined sampling capability?

The device integrates three independent 12-bit ADCs (ADC1/2/3), each capable of 2.5 Msps. In interleaved mode, they achieve up to 5 Msps aggregate throughput with hardware oversampling up to 16-bit resolution. All share common DMA channels and support simultaneous sampling on up to 16 channels.

Is the STM32L496ZGT6 pin-compatible with other STM32L496xx variants in LQFP144 package?

Yes-STM32L496ZGT6 shares identical LQFP144 pinout and electrical characteristics with all other ZG-prefix variants (e.g., STM32L496VGT6, STM32L496ZET6) per Table 15 and Section 7.3 of DS11585 Rev 20. Differences are limited to flash size, SRAM allocation, and optional peripheral enablement-not pin function or placement.