STMicroelectronics STM32L4R5ZGT6

Overview

STM32L4R5ZGT6 from STMicroelectronics is an ultra-low-power Arm® Cortex®-M4 32-bit MCU with FPU, 120 MHz max frequency, 2 MB Flash, 640 KB SRAM, and integrated MIPI DSI host controller + LCD-TFT controller. It delivers 150 DMIPS and supports external SMPS for 43 µA/MHz run-mode efficiency. Used in battery-powered industrial HMIs requiring high-resolution graphics and real-time control.

For engineers reviewing the STM32L4R5ZGT6 datasheet, STM32L4R5ZGT6 pinout, STM32L4R5ZGT6 application, or STM32L4R5ZGT6 equivalent, key selection criteria include its dual-bank Flash with read-while-write capability, 24-channel capacitive touch sensing, Chrom-ART Accelerator (DMA2D), and -40 °C to 125 °C extended temperature operation.

Technical Context

This MCU integrates an adaptive real-time memory accelerator (ART Accelerator) enabling zero-wait-state execution from Flash at 120 MHz, and a multi-AHB interconnect matrix supporting concurrent access to Flash, SRAM, and peripherals. Its power architecture includes three low-power modes (Stop 2, Standby with RTC, Shutdown) with sub-100 nA quiescent current.

The device features two independent 12-bit DACs, dual operational amplifiers with programmable gain, and a 12-bit 5 Msps ADC with hardware oversampling up to 16-bit resolution - all supported by dedicated low-noise analog supplies. The MIPI DSI Host operates at up to 500 Mbit/s per lane for driving high-speed display interfaces.

Key Specifications

Pinout & Package

LQFP144 package: 20 × 20 mm body, 0.5 mm lead pitch, exposed thermal pad, rated for -40 °C to 125 °C operation. Compatible with standard reflow profiles and automated optical inspection.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32L4R5VGT6, the ZGT6 offers more memory and I/O for complex HMIs; versus STM32L4R9ZGT6, it omits alpha-blending hardware but retains identical DSI/LTDC timing and power performance - ideal for cost-sensitive, high-resolution display control.

Availability

STM32L4R5ZGT6 is available at Aetrix Electronics and suitable for industrial HMIs, portable medical monitors, smart energy meters, and wireless sensor gateways requiring stable component supply across extended temperature and long product lifecycles.

Supply support for STM32L4R5ZGT6 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 automotive chips since 1987.

The STM32L4 series targets ultra-low-power embedded applications demanding rich peripherals, graphics capability, and extended battery life - especially in industrial, medical, and metering equipment.

FAQ

What is the maximum operating temperature for STM32L4R5ZGT6?

The STM32L4R5ZGT6 is qualified for industrial and extended temperature ranges: –40 °C to +125 °C ambient. This rating applies specifically to the LQFP144 package variant and is validated per JEDEC JESD22-A108. Thermal derating begins above 105 °C in continuous operation with full peripheral activation.

Does STM32L4R5ZGT6 support external memory expansion?

Yes - it integrates a Flexible Static Memory Controller (FSMC) supporting SRAM, PSRAM, NOR, NAND, and FRAM, plus two independent OctoSPI interfaces for high-speed serial flash or RAM. These allow booting from external memory and expanding code/data space beyond internal 2 MB Flash and 640 KB SRAM.

Can STM32L4R5ZGT6 drive a 1080p display?

No - the LTDC controller supports up to XGA (1024×768) resolution at 60 Hz with 24-bit RGB. Driving 1080p requires pixel doubling or external bridge ICs. The MIPI DSI Host supports two lanes at 500 Mbit/s each (1 Gbit/s total), sufficient for WXGA but not native 1080p at 60 Hz without compression or frame buffering.

Is the Chrom-ART Accelerator (DMA2D) usable without the LTDC controller?

Yes - DMA2D operates independently of LTDC and can accelerate 2D graphics operations (copy, fill, blend) directly into SRAM or external memory. It supports ARGB8888, RGB888, RGB565, and monochrome formats, enabling GUI rendering even in headless or non-display applications such as image preprocessing or buffer management.