STMicroelectronics STM32L4P5AGI6

Overview

STM32L4P5AGI6 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 (SMPS), and hardware crypto acceleration (SHA-256, RNG). Used in battery-powered medical wearables requiring long runtime and graphical UI.

For engineers reviewing the STM32L4P5AGI6 datasheet, STM32L4P5AGI6 pinout, STM32L4P5AGI6 application, or STM32L4P5AGI6 equivalent, key selection criteria include ultra-low active/standby current, dual-bank read-while-write Flash, Octo-SPI interface support, and integrated LCD-TFT controller with Chrom-ART Accelerator.

Technical Context

The device integrates an adaptive real-time accelerator (ART) enabling zero-wait-state execution from Flash at 120 MHz, and a multi-AHB bus matrix supporting concurrent access to peripherals and memory. Its power architecture includes configurable voltage scaling (VOS), external SMPS support, and five low-power modes (Shutdown, Standby, Stop 2, Low-power Run, Run) with sub-μA retention states.

Peripherals are routed via a centralized interconnect matrix with 14-channel DMA and DMAMux; clocking uses three PLLs (system, USB, audio/ADC) and auto-trimmed internal oscillators (±0.25% accuracy). The analog subsystem includes two 12-bit ADCs (5 Msps), two DACs, two op-amps with PGA, and two ultra-low-power comparators - all with independent supply domains.

Key Specifications

Pinout & Package

STM32L4P5AGI6 is packaged in UFBGA169 (7 × 7 mm, 0.4 mm pitch), a 169-ball fine-pitch ball grid array optimized for space-constrained portable designs. Pin functions support flexible peripheral mapping via 16 alternate function sets (AF0–AF15).

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32L4R5ZIT6, STM32L4P5AGI6 trades Flash/SRAM capacity for integrated LCD-TFT and DCMI - reducing BOM cost and PCB area in display-centric designs. Versus STM32U575ZIT6, it retains mature tooling and display IP but lacks TrustZone and has higher active power.

Availability

STM32L4P5AGI6 is available at Aetrix Electronics and suitable for wearable health monitors, smart energy meters, portable diagnostic tools, and industrial HMI panels requiring stable component supply across multi-year production cycles.

Supply support for STM32L4P5AGI6 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 extended battery life, rich peripheral integration, and robust security - with STM32L4P5AGI6 specifically optimized for graphical, sensor-rich, and connectivity-enabled portable devices.

FAQ

What is the maximum operating frequency and core type of STM32L4P5AGI6?

The STM32L4P5AGI6 features an Arm Cortex-M4 core with FPU, rated for up to 120 MHz operation. It achieves 150 DMIPS (1.25 DMIPS/MHz) using the ART Accelerator for zero-wait-state Flash execution. The core includes a Memory Protection Unit (MPU) and full DSP instruction set, validated per Dhrystone 2.1 benchmark.

Does STM32L4P5AGI6 support external memory interfaces?

Yes - it integrates a Flexible Static Memory Controller (FSMC) supporting SRAM, PSRAM, NOR, NAND, and FRAM, plus two independent Octo-SPI interfaces capable of x1/x2/x4/x8 protocols. These enable high-bandwidth external memory expansion for graphics frame buffers or firmware storage, with configurable timing and hardware ECC support.

What low-power modes are available and what are their typical current draws?

Five low-power modes are supported: Shutdown (22 nA), Standby (42 nA), Standby with RTC (190 nA), Stop 2 with RTC (2.95 μA), and Low-power Run (110 μA/MHz with LDO or 41 μA/MHz with SMPS). All modes retain SRAM content and allow wake-up via GPIO, RTC alarm, or external interrupt, with sub-5 μs wake-up latency from Stop mode.

Is the LCD-TFT controller compatible with standard RGB display panels?

Yes - the integrated LTDC supports 24-bit RGB parallel interface (R0–R7, G0–G7, B0–B7), plus HSYNC, VSYNC, DE, and pixel clock outputs. It drives resolutions up to 1024×768@60 Hz and includes layer blending, alpha blending, and CLUT support. The Chrom-ART Accelerator (DMA2D) handles 2D graphics operations independently of the CPU.