STMicroelectronics STM32L4Q5VGY6TR

Overview

STM32L4Q5VGY6TR from STMicroelectronics is an ultra-low-power Arm® Cortex®-M4 32-bit MCU with FPU, 120 MHz max frequency, 1-MB Flash, 320-KB SRAM, and integrated LCD-TFT controller, AES+PKA cryptographic accelerators, and external SMPS support. It targets battery-powered industrial HMI, portable medical devices, and smart sensor nodes requiring secure, high-resolution display and long runtime.

For engineers reviewing the STM32L4Q5VGY6TR datasheet, STM32L4Q5VGY6TR pinout, STM32L4Q5VGY6TR application, or STM32L4Q5VGY6TR equivalent, key selection criteria include its 190 nA Standby-with-RTC current, dual-bank read-while-write Flash, 2×12-bit ADCs (5 Msps), Chrom-ART DMA2D graphics accelerator, and 100-pin UFBGA package with 136 fast I/Os (most 5 V-tolerant).

Technical Context

This MCU implements an adaptive real-time memory accelerator (ART Accelerator) enabling zero-wait-state execution from Flash at 120 MHz, paired with a memory protection unit (MPU) and FlexPowerControl architecture for dynamic voltage scaling across seven low-power modes. Its interconnect matrix integrates a 14-channel DMA controller and AHB bus matrix to manage concurrent access to peripherals including dual Octo-SPI, USB OTG FS, and SDMMC.

The device integrates dual 12-bit ADCs with hardware oversampling up to 16-bit resolution, two 12-bit DACs with sample-and-hold, two operational amplifiers with programmable gain, and two ultra-low-power comparators - all operating from independent analog supplies. Cryptographic acceleration includes AES-128/256, SHA-256 (HASH), PKA for ECC/RSA, and true random number generation.

Key Specifications

Pinout & Package

STM32L4Q5VGY6TR is housed in a 100-ball UFBGA package (7 × 7 mm, 0.4 mm ball pitch) with 136 general-purpose I/Os (most 5 V-tolerant), supporting flexible power domain partitioning and independent analog supply routing.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32L4R5ZIT6, the STM32L4Q5VGY6TR offers PKA-based ECC acceleration critical for lightweight TLS handshakes in constrained nodes, while the STM32U575ZIT6 trades display integration for PSA Level 3 security - making the L4Q5 optimal for cost-sensitive, display-integrated edge devices requiring hardware crypto agility.

Availability

STM32L4Q5VGY6TR is available at Aetrix Electronics and suitable for industrial HMI, portable medical instrumentation, and smart utility metering requiring stable component supply, long-term lifecycle assurance, and qualified automotive-grade traceability.

Supply support for STM32L4Q5VGY6TR 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 analog products for industrial, automotive, and consumer markets.

The STM32L4 series targets ultra-low-power embedded applications demanding high performance per µA, integrating advanced power gating, cryptographic accelerators, and display subsystems for intelligent edge devices.

FAQ

What is the maximum operating frequency and associated performance metric of the STM32L4Q5VGY6TR?

The STM32L4Q5VGY6TR operates at up to 120 MHz using its Arm Cortex-M4 core with FPU. It achieves 150 DMIPS (Dhrystone 2.1) and 409.20 CoreMark® (3.41 CoreMark/MHz), validated with ART Accelerator enabled and zero-wait-state Flash execution. This performance is sustained across temperature ranges from –40 °C to +125 °C.

Does the STM32L4Q5VGY6TR support external memory expansion, and if so, which interfaces are available?

Yes, it supports external memory via three dedicated interfaces: a Flexible Static Memory Controller (FSMC) for SRAM, PSRAM, NOR, NAND, and FRAM; and two independent Octo-SPI interfaces capable of XIP and memory-mapped access to serial flash or RAM. These interfaces operate concurrently and support dual-bank addressing for seamless firmware updates.

How does the low-power capability of the STM32L4Q5VGY6TR compare across its major sleep modes?

In Shutdown mode, it draws 22 nA with five wakeup pins active; Standby mode consumes 42 nA (or 190 nA with RTC enabled); Stop 2 mode draws 2.95 µA with RTC running; and Run mode is 41 µA/MHz when powered by external SMPS. All values are measured at 3.3 V and 25 °C per DS12902 Rev 3, Table 25–28.

Is the STM32L4Q5VGY6TR pin-compatible with other members of the STM32L4Q5xx family?

No - the STM32L4Q5VGY6TR uses a 100-ball UFBGA package (VGY suffix), while other variants like STM32L4Q5RGVT6 use LQFP64 and STM32L4Q5ZGT6 use LQFP144. Pin mapping differs significantly across packages due to distinct ball/pad counts and peripheral routing constraints; migration requires PCB redesign and signal validation per DS12902 Section 4.