STMicroelectronics STM32L4P5VGT6P

Overview

STM32L4P5VGT6P from STMicroelectronics is an ultra-low-power Arm® Cortex®-M4 32-bit MCU with FPU, operating up to 120 MHz (150 DMIPS), featuring 1-MB Flash, 320-KB SRAM, LCD-TFT controller, and integrated external SMPS support. It delivers 41 µA/MHz in SMPS-run mode, 190 nA Standby with RTC, and supports capacitive touch sensing for battery-powered industrial HMI and portable medical devices.

For engineers reviewing the STM32L4P5VGT6P datasheet, STM32L4P5VGT6P pinout, STM32L4P5VGT6P application, or STM32L4P5VGT6P equivalent, key selection criteria include verified low-power mode current specs (e.g., 22 nA Shutdown), dual-bank read-while-write Flash architecture, hardware parity-checked SRAM, and validated Octo-SPI interface timing for external memory expansion.

Technical Context

The device integrates an adaptive real-time accelerator (ART Accelerator) enabling zero-wait-state execution from Flash at 120 MHz, alongside a memory protection unit (MPU) and dual-bank Flash supporting true read-while-write operation. Its power architecture includes configurable voltage scaling (VOS), internal SMPS control logic, and dedicated low-power regulators for independent domain management.

Peripherals are routed via a multi-AHB bus matrix with 14-channel DMA, supporting concurrent high-bandwidth transfers - e.g., simultaneous DCMI image capture, SAI audio streaming, and Octo-SPI flash read - without CPU intervention. The embedded Chrom-ART Accelerator (DMA2D) offloads 2D graphic composition tasks from the CPU during TFT display updates.

Key Specifications

Pinout & Package

LQFP100 (14 × 14 mm, 0.5 mm pitch) package with 100 leads; thermally enhanced exposed pad for improved heat dissipation in compact industrial designs.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar ultra-low-power Cortex-M4 MCU applications.

Compared with STM32L4R5ZIT6, STM32L4P5VGT6P offers integrated SMPS control and LQFP100 packaging for easier prototyping, while STM32U575ZIT6 trades graphics and memory interfaces for superior security and active power efficiency - making each optimal for distinct system-level priorities.

Availability

STM32L4P5VGT6P is available at Aetrix Electronics and suitable for portable medical monitors, smart utility meters, industrial HMI panels, and wireless sensor nodes requiring stable component supply across extended product lifecycles.

Supply support for STM32L4P5VGT6P 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 automotive semiconductors.

The STM32L4 series targets ultra-low-power embedded applications demanding rich peripherals, robust security, and long battery life - optimized for industrial, healthcare, and smart infrastructure markets.

FAQ

What is the maximum operating frequency and associated performance metric?

The STM32L4P5VGT6P operates at up to 120 MHz, delivering 150 DMIPS (1.25 DMIPS/MHz per Dhrystone 2.1) and 409.20 CoreMark® (3.41 CoreMark/MHz). This performance is sustained with zero wait states using the ART Accelerator, confirmed in DS12903 Rev 3 Section 3.2 and Table 10.

Does this MCU support external memory interfaces beyond Octo-SPI?

Yes - it integrates a Flexible Static Memory Controller (FSMC) supporting SRAM, PSRAM, NOR, NAND, and FRAM with address/data multiplexing. The FSMC operates independently from Octo-SPI, enabling concurrent access to different memory types, as detailed in Section 3.18 and Table 6 of DS12903 Rev 3.

How is the 190 nA Standby with RTC achieved in practice?

This spec requires disabling all clocks except LSE, powering only the RTC domain and 32×32-bit backup registers from VBAT, and configuring the PWR_CR4.RTCPRE bit. The value is measured per Section 6.3.5 of DS12903 Rev 3 under -40°C to 85°C, with VBAT = 1.65–3.6 V and LSE running.

Is the LCD-TFT controller capable of driving RGB888 panels?

Yes - the LTDC supports 24-bit RGB (R8G8B8) output with programmable polarity, clock, and sync signals (HSYNC/VSYNC/DE), enabling direct interface to panels up to 800×480 resolution. Pixel clock generation is handled internally, eliminating need for external timing ICs (Section 3.28, DS12903 Rev 3).