STMicroelectronics STM32L4P5QGI6

Overview

STM32L4P5QGI6 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. It features FlexPowerControl for 22 nA Shutdown mode, 41 µA/MHz Run mode with SMPS, and supports external SMPS for enhanced efficiency in battery-powered industrial and medical edge devices.

For engineers reviewing the STM32L4P5QGI6 datasheet, STM32L4P5QGI6 pinout, STM32L4P5QGI6 application, or STM32L4P5QGI6 equivalent, key selection criteria include verified low-power mode current specs (e.g., 190 nA Standby with RTC), dual-bank read-while-write Flash architecture, Octo-SPI interface support, and UFBGA132 package compatibility with 1.08 V I/O supply capability.

Technical Context

The STM32L4P5QGI6 integrates an adaptive real-time accelerator (ART Accelerator) enabling zero-wait-state execution from Flash at 120 MHz, and a multi-speed internal oscillator auto-trimmed by LSE (±0.25% accuracy). Its interconnect matrix includes a 14-channel DMA controller and AHB bus matrix to manage concurrent high-bandwidth peripherals including dual Octo-SPI, USB OTG FS, and LCD-TFT controller.

It implements three PLLs - one for system clock, one for USB/audio, and one for ADC - supporting precise clock domain isolation. The device uses a memory protection unit (MPU), hardware CRC, SHA-256 accelerator, and 96-bit unique ID for secure firmware deployment in certified IoT endpoints.

Key Specifications

Pinout & Package

STM32L4P5QGI6 is housed in a 7 × 7 mm UFBGA132 package with 0.4 mm ball pitch, optimized for space-constrained portable and wearable designs. The package supports thermal performance up to 125 °C ambient and enables high-density PCB routing with perimeter-only ball layout.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32L4R5ZIT6, the STM32L4P5QGI6 offers identical peripheral sets in a smaller UFBGA132 package with lower static power - ideal for size- and energy-constrained edge nodes. Versus STM32U575ZIT6, it trades TrustZone and crypto engines for proven ultra-low-power stability and broader toolchain support in legacy industrial deployments.

Availability

STM32L4P5QGI6 is available at Aetrix Electronics and suitable for smart medical wearables, industrial wireless sensor nodes, energy-efficient HMI panels, and secure edge gateways requiring stable component supply across multi-year production cycles.

Supply support for STM32L4P5QGI6 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, specializing in microcontrollers, power management, sensors, and automotive ICs with vertical manufacturing and broad IP portfolio.

The STM32L4 series targets ultra-low-power embedded applications demanding extended battery life, rich peripheral integration, and robust real-time performance - especially in portable medical, industrial IoT, and smart home endpoints.

FAQ

What is the maximum operating temperature for STM32L4P5QGI6?

The STM32L4P5QGI6 is rated for operation from –40 °C to +125 °C ambient temperature. This extended range is validated per ST's production data (DS12903 Rev 3), making it suitable for under-hood automotive modules, industrial motor drives, and outdoor environmental sensors where thermal resilience is critical.

Does STM32L4P5QGI6 support external memory interfaces beyond Octo-SPI?

Yes - it integrates a Flexible Static Memory Controller (FSMC) supporting SRAM, PSRAM, NOR, NAND, and FRAM with 8-/16-bit data bus and up to 26 address lines. This complements the two Octo-SPI interfaces, enabling hybrid memory architectures: Octo-SPI for high-speed code/data fetch and FSMC for legacy parallel memory or large framebuffer storage.

How many I/O pins support independent 1.08 V supply, and why does this matter?

Up to 14 I/O pins (grouped in dedicated banks) support independent 1.08–3.6 V supply, allowing direct interfacing with low-voltage logic (e.g., 1.2 V or 1.8 V FPGAs, sensors, or RF transceivers) without level shifters. This reduces BOM cost, board area, and signal integrity risk in mixed-voltage systems such as battery-powered IoT hubs.

Is the LCD-TFT controller capable of driving RGB888 displays without external components?

Yes - the integrated LTDC controller supports RGB888 (24-bit), RGB666 (18-bit), and RGB565 (16-bit) formats with programmable polarity, HSYNC/VSYNC/DE timing, and up to 2048×2048 resolution. It drives displays directly via 24 parallel data lines (PD0–PD23), eliminating need for external timing generators or display bridges in cost-sensitive HMI designs.