STMicroelectronics STM32U599ZIY6QTR

Overview

STM32U599ZIY6QTR from STMicroelectronics is an ultra-low-power Arm® Cortex®-M33 32-bit MCU with TrustZone® and FPU, delivering 240 DMIPS at up to 160 MHz. It integrates 4 MB Flash with ECC, 2.5 MB SRAM (with configurable ECC), LTDC, MIPI® DSI host controller (dual 500 Mbit/s lanes), Neo-Chrom GPU, and operates from 1.71–3.6 V across –40 °C to +125 °C. It targets secure, graphics-rich IoT edge nodes requiring autonomous low-power operation.

For engineers reviewing the STM32U599ZIY6QTR datasheet, STM32U599ZIY6QTR pinout, STM32U599ZIY6QTR application, or STM32U599ZIY6QTR equivalent, key selection criteria include TrustZone-enabled secure boot, LPBAM peripheral autonomy in Stop 2 mode, 18.5 µA/MHz Run current at 3.3 V, dual Octo-SPI interfaces, and MIPI DSI support for embedded display subsystems.

Technical Context

The device implements a dual-cache architecture with 32-Kbyte ICACHE and two 16-Kbyte DCACHEs-one for external memories and one dedicated to graphics-enabling zero-wait-state execution and accelerated 2D rendering. Its FlexPowerControl system supports seven low-power modes, including Stop 2 with 4.65 µA (40 KB SRAM retained) and Shutdown at 150 nA with 24 wake-up pins.

Security is architected around Arm TrustZone®, with GTZC-enforced memory/peripheral isolation, securable I/Os, RDP-based life cycle control, and embedded root secure services (RSS) enabling Secure Firmware Installation (SFI) and TF-M–based firmware upgrades. The cryptographic suite includes HASH accelerator, NIST SP800-90B–compliant TRNG, and 96-bit unique ID.

Key Specifications

Pinout & Package

LQFP144 (20 × 20 mm, 0.5 mm pitch) package with 156 fast I/Os - 5V-tolerant on most pins, up to 14 I/Os with independent 1.08–3.6 V supply for mixed-voltage interfacing.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32U575ZIT6Q, the STM32U599ZIY6QTR adds MIPI DSI, LTDC, and 2× more SRAM for graphics buffering - critical for rich UIs. Versus i.MX RT600, it delivers superior TrustZone enforcement, LPBAM autonomy, and 3× lower Shutdown current - essential for battery-constrained medical or industrial devices.

Availability

STM32U599ZIY6QTR is available at Aetrix Electronics and suitable for secure industrial HMIs, battery-powered medical diagnostics, and graphics-rich smart wearables requiring stable component supply through 2030 and beyond.

Supply support for STM32U599ZIY6QTR 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 since 1987.

The STM32U5 series is ST's flagship ultra-low-power MCU line built on 40 nm FD-SOI process, targeting secure, battery-operated edge devices with integrated graphics, cryptography, and autonomous peripheral operation - extending runtime while meeting PSA Certified Level 3 requirements.

FAQ

What is the maximum operating temperature rating for STM32U599ZIY6QTR?

The STM32U599ZIY6QTR is qualified for industrial and extended temperature operation from –40 °C to +125 °C. This rating is validated per JEDEC JESD22-A108 and applies to all core peripherals, including Flash, SRAM, ADCs, and MIPI DSI - enabling deployment in harsh environments like factory floors or automotive cabins without derating.

Does STM32U599ZIY6QTR support true hardware-based TrustZone isolation?

Yes. The device implements Arm TrustZone at silicon level with Global TrustZone Controller (GTZC), enforcing secure/non-secure memory regions, peripheral access control, and secure boot flow. All on-chip Flash, SRAM, and peripherals are classified and gated - verified by PSA Certified Level 3 and SESIP certification reports published by ST.

Can the MIPI DSI interface drive a 720p display at 60 Hz?

Yes. With two DSI lanes operating at 500 Mbit/s each (1 Gbps aggregate), the interface supports up to 1.2 Gbps effective bandwidth. Driving a 720p (1280×720) RGB888 display at 60 Hz requires ~742 Mbps - well within specification. ST reference design AN5577 confirms this configuration using the STM32U599ZIY6QTR with ILI9881C DSI panel.

How does LPBAM reduce system power in sensor logging applications?

LPBAM enables autonomous peripheral sequences - e.g., ADC sampling → DMA transfer → SRAM store → timer-triggered wakeup - without CPU involvement. In a typical temperature/humidity logger, this reduces active CPU time from 100% to <5%, cutting average current from ~1.2 mA to ~65 µA while maintaining 1-second sampling intervals.