STMicroelectronics STM32L496ZGT6P

Overview

STM32L496ZGT6P 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 HASH (SHA-256), and integrated SMPS support. It delivers 37 µA/MHz in SMPS-run mode, 426 nA Standby with RTC, and supports audio via dual SAI interfaces - deployed in battery-powered medical monitors requiring secure, real-time sensor fusion and low-latency audio feedback.

For engineers reviewing the STM32L496ZGT6P datasheet, STM32L496ZGT6P pinout, STM32L496ZGT6P application, or STM32L496ZGT6P equivalent, key selection criteria include verified ultra-low-power mode timing (e.g., 5 µs wakeup from Stop), dual-bank flash RWW capability, hardware crypto acceleration (HASH), and LQFP144 package compatibility with industrial-grade thermal performance (–40 °C to 85 °C).

Technical Context

This MCU integrates an Adaptive Real-time Accelerator (ART) enabling zero-wait-state execution from flash at 80 MHz, alongside a multi-AHB interconnect matrix for concurrent peripheral access. Its power architecture includes three independent voltage regulators (LDO/SMPS/bypass), supporting dynamic voltage scaling and brownout reset across all active and low-power modes.

The device implements dual 12-bit ADCs (5 Msps, 16-bit oversampling), 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 (VDDA/VREF+), ensuring precision signal conditioning in mixed-signal edge nodes.

Key Specifications

Pinout & Package

LQFP144 package with exposed thermal pad; 144 leads, 0.5 mm pitch, body size 20 × 20 mm, RoHS-compliant, moisture sensitivity level 3.

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 STM32L496ZGT6P adds 512 KB flash, SMPS efficiency, and dual SAI - critical for audio-enabled medical devices; versus STM32U575ZIT6, it trades TrustZone and higher temp rating for lower system-level power and mature toolchain support in legacy designs.

Availability

STM32L496ZGT6P is available at Aetrix Electronics and suitable for wearable health monitors, smart building controllers, portable diagnostic tools, and industrial HMI panels requiring stable component supply across multi-year production cycles.

Supply support for STM32L496ZGT6P 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, MEMS, and analog chips since 1987.

The STM32L4 series targets ultra-low-power embedded applications demanding rich analog integration, cryptographic security, and long battery life - specifically engineered for medical, metering, and portable industrial equipment.

FAQ

What is the maximum operating frequency and associated DMIPS performance?

The STM32L496ZGT6P runs at up to 80 MHz with an Arm Cortex-M4 core featuring FPU and ART Accelerator. It achieves 100 DMIPS (Dhrystone 2.1), validated at 80 MHz with zero-wait-state flash execution. This performance supports real-time control loops and signal processing tasks such as motor control or FFT-based spectral analysis without external coprocessors.

Does this MCU support external memory expansion, and what interfaces are available?

Yes, the STM32L496ZGT6P supports external memory via two dedicated interfaces: the Flexible Static Memory Controller (FSMC) for NOR/PSRAM/SRAM/NAND and the Dual-flash QUADSPI interface for Octal/Quad SPI memories. FSMC enables parallel interface speeds up to 90 MHz, while QUADSPI supports XIP execution at up to 133 MHz - both validated in ST's AN4821 and RM0351 reference manuals.

How does the power management architecture differ between LDO and SMPS modes?

In LDO mode, the internal linear regulator supplies the core at ~1.2 V, drawing 91 µA/MHz. In SMPS mode, an external switched-mode power supply delivers 1.1 V to VDD12, reducing active current to 37 µA/MHz - a 2.5× improvement. The MCU automatically manages voltage scaling transitions, and SMPS mode requires external components (inductor, capacitor) per ST's AN5053 design guidelines.

Is the LQFP144 package RoHS-compliant and suitable for lead-free reflow?

Yes, the STM32L496ZGT6P in LQFP144 (part number suffix 'T6') is RoHS-compliant and qualified for lead-free reflow per JEDEC J-STD-020D. Its maximum peak reflow temperature is 260 °C, with thermal pad design supporting efficient heat dissipation in compact PCB layouts - verified in ST's package note DB2139 and reliability report Q32022-012.