STMicroelectronics STM32L4A6VGY6PTR

Overview

STM32L4A6VGY6PTR 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 AES+HASH encryption, and integrated SMPS support. It targets battery-powered industrial sensors, portable medical devices, and audio-enabled IoT edge nodes requiring secure, low-power processing with rich analog and communication peripherals.

For engineers reviewing the STM32L4A6VGY6PTR datasheet, STM32L4A6VGY6PTR pinout, STM32L4A6VGY6PTR application, or STM32L4A6VGY6PTR equivalent, key selection criteria include its 37 µA/MHz SMPS-run efficiency, dual-bank flash with read-while-write, 3× 12-bit ADCs (5 Msps), Chrom-ART Accelerator for GUI rendering, and dual CAN 2.0B interfaces - all in a UFBGA132 (7 × 7 mm) package.

Technical Context

The device integrates an Adaptive Real-time Accelerator (ART™) enabling zero-wait-state execution from flash at 80 MHz, and employs FlexPowerControl architecture with seven low-power modes - including 25 nA Shutdown and 426 nA Standby with RTC - managed via dedicated power control block and voltage scaling regulators. Its interconnect matrix routes 14 DMA channels across 20 communication peripherals, 16 timers, and dual-bank flash without CPU intervention.

Hardware security includes AES-128/256 and SHA-256 accelerators, true random number generator, 96-bit unique ID, and configurable readout protection (RDP). Analog subsystem features three independent 12-bit ADCs with hardware oversampling up to 16-bit, two DACs, two op-amps with PGA, and two ultra-low-power comparators - all supported by dedicated VDDA/VREF+ supplies.

Key Specifications

Pinout & Package

UFBGA132 (7 × 7 mm, 0.4 mm pitch) package with 132 solder balls. Pinout validated per STMicroelectronics DS11584 Rev 14, Section 4 ("Pinouts and pin description"), Table 15 ("STM32L4A6xG pin definitions"). Ball mapping includes dedicated VDDA/VSSA, VREF+/VREF-, VBAT, and multiple independent supply domains (VDDIO2 down to 1.08 V).

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 STM32L4A6VGY6PTR, STM32L4R9AII6 trades ultra-low-power efficiency for display capability and memory headroom, while STM32L552RET6P replaces analog/audio richness with hardware-enforced security - making the L4A6 optimal for balanced, battery-powered industrial edge nodes.

Availability

STM32L4A6VGY6PTR is available at Aetrix Electronics and suitable for industrial sensor nodes, portable medical monitors, automotive body control modules, and smart home audio gateways requiring stable component supply across long-lifecycle deployments.

Supply support for STM32L4A6VGY6PTR 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 analog components for industrial, automotive, and consumer markets.

The STM32L4 series targets ultra-low-power embedded applications demanding high performance-per-milliwatt, extended battery life, and integrated security - with the L4A6 variant optimized for audio, connectivity, and analog-rich edge intelligence.

FAQ

What is the maximum operating frequency and corresponding DMIPS rating?

The STM32L4A6VGY6PTR operates at up to 80 MHz with an Adaptive Real-time Accelerator (ART™) enabling zero-wait-state flash execution. Its performance is rated at 100 DMIPS (Dhrystone 2.1), verified at 80 MHz with ART enabled and cache configured. This delivers deterministic real-time response for motor control, sensor fusion, and audio processing tasks without external memory.

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

Yes - it supports external static memories via the Flexible Static Memory Controller (FSMC), compatible with SRAM, PSRAM, NOR, and NAND devices. Additionally, it features a Dual-flash Quad SPI interface for high-speed serial flash expansion. These interfaces allow offloading of firmware images, audio buffers, or graphics assets beyond on-chip memory limits.

What are the key low-power modes and their typical current consumption values?

Key modes include: 25 nA Shutdown (5 wakeup pins), 108 nA Standby (5 wakeup pins), 426 nA Standby with RTC, 2.57 µA Stop 2 mode, and 37 µA/MHz Run mode with external SMPS. All values are measured per DS11584 Rev 14, Table 4 and Section 6.3.5, under specified VDD=3.3 V and 25 °C conditions.

Is the UFBGA132 package RoHS-compliant and lead-free?

Yes - the UFBGA132 package for STM32L4A6VGY6PTR is fully RoHS-compliant and lead-free, meeting EU Directive 2011/65/EU and JEDEC J-STD-020 moisture sensitivity level MSL3. Full compliance documentation, including material declarations and test reports, is available through STMicroelectronics' official product page and Aetrix Electronics' quality portal.