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STMicroelectronics STM32L4S7ZIT6
- Part No.:
- STM32L4S7ZIT6
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 144-LQFP
- Datasheet:
-
STM32L4S7ZIT6.pdf
- Description:
- IC MCU 32BIT 2MB FLASH 144LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:360
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Product details
Overview
STM32L4S7ZIT6 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 for embedded graphics applications. It delivers 150 DMIPS, supports -40 °C to 125 °C operation, and achieves 420 nA Stop 2 mode with RTC.
For engineers reviewing the STM32L4S7ZIT6 datasheet, STM32L4S7ZIT6 pinout, STM32L4S7ZIT6 application, or STM32L4S7ZIT6 equivalent, key selection criteria include ultra-low-power runtime (110 µA/MHz), dual-bank read-while-write Flash, hardware-accelerated graphics (Chrom-ART/DMA2D), AES+HASH crypto engine, and 136 I/Os with 5 V tolerance - critical for battery-powered HMI, portable medical displays, and industrial edge controllers.
Technical Context
This MCU integrates an adaptive real-time accelerator (ART) enabling zero-wait-state execution from Flash at 120 MHz, and features a multi-AHB interconnect matrix supporting concurrent access to Flash, SRAM, and peripherals without bus contention. Its power architecture includes five low-power modes (Shutdown, Standby, Stop 2, Stop 1, Low-power Run), each with distinct wakeup latency and peripheral retention.
The device embeds dual Octo-SPI interfaces for high-speed external memory expansion, a 14-channel DMA controller with DMAMux routing, and a dedicated interconnect matrix for peripheral-to-peripheral transfers - enabling deterministic real-time response in sensor fusion and display refresh pipelines.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | Arm Cortex-M4 with FPU, 120 MHz max, 150 DMIPS - enables real-time DSP and control algorithms without external coprocessor |
| Memory | 2 MB dual-bank Flash (read-while-write), 640 KB SRAM (64 KB with parity) - supports secure firmware updates and robust data logging |
| Power Modes | 420 nA Stop 2 with RTC, 33 nA Shutdown - extends battery life in always-on sensing and display standby states |
| Graphics | MIPI DSI host (2 lanes @ 500 Mbit/s), LCD-TFT controller, Chrom-ART Accelerator (DMA2D) - drives QVGA–XGA displays with hardware-accelerated layer blending |
| Crypto | AES-128/256 + SHA-256 hardware accelerator - offloads encryption for secure OTA updates and data-at-rest protection |
| Analog | 12-bit ADC @ 5 Msps (16-bit oversampled), 2× DAC, 2× op-amps with PGA, 2× comparators - supports precision sensor signal chain and closed-loop control |
| I/O & Interfaces | 136 fast I/Os (most 5 V-tolerant), USB OTG FS, CAN 2.0B, SDMMC, 6× USART, 4× I²C, 3× SPI, 2× SAI - enables rich connectivity in industrial HMI and gateway designs |
Pinout & Package
STM32L4S7ZIT6 is housed in a UFBGA144 (10 × 10 mm, 0.4 mm pitch) package with 136 user I/Os and dedicated power/ground pins optimized for low-noise analog and high-speed digital operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VDDIO2 | Main, analog, and I/O supply rails | Independent 1.71–3.6 V domains enable mixed-signal integrity and flexible power sequencing |
| VSS, VSSA, VSSIO2 | Digital, analog, and I/O ground returns | Separate ground planes minimize coupling between noise-sensitive analog and high-speed digital sections |
| PA0–PA15, PB0–PB15, etc. | General-purpose I/Os with multiple AFs | 136 pins support up to 16 alternate functions per pin (e.g., DSI, LTDC, SPI, USART) - enables dense peripheral mapping without external logic |
| PH13–PH15 | MIPI DSI clock/data lanes | Dedicated high-speed differential pairs with internal termination - eliminates need for external DSI PHY or level shifters |
| PI0–PI11 | LCD-TFT RGB interface | 24-bit parallel RGB output with HSYNC/VSYNC/DE timing - directly drives TFT panels up to XGA resolution |
| PC10–PC12, PD0–PD3 | Octo-SPI interface (2x) | Two independent Octo-SPI controllers support x8/x4/x1 protocols - enables boot from external flash or expandable code/data space |
Key Features
| Feature | Design Value |
|---|---|
| FlexPowerControl architecture | Five configurable low-power modes with sub-µA shutdown and 5 µs wakeup - enables responsive, energy-aware UI state management |
| Chrom-GRC (GFXMMU) | Hardware memory management unit reducing graphic resource usage by up to 20% - lowers SRAM bandwidth pressure during animation rendering |
| Batch Acquisition Mode (BAM) | Peripheral-triggered autonomous data capture while CPU sleeps - ideal for sensor hub operation with minimal power overhead |
| True Random Number Generator (RNG) | NIST SP800-90B compliant entropy source - provides cryptographically secure keys for TLS handshake and device attestation |
| Firewall and memory protection unit (MPU) | Runtime-enforced isolation between secure/non-secure code and peripherals - meets IEC 62443-3-3 SL2 requirements for industrial firmware |
Applications
| Smart Wearable Display | Portable Medical Monitor |
|---|---|
Use Scenario: Compact wrist-worn device with color TFT display, biometric sensors, and Bluetooth LE connectivity. IC Role / Device Role / Timing Role: Primary application processor managing display refresh via MIPI DSI, sensor data acquisition via 12-bit ADC, and secure BLE packet encryption using AES hardware. Use Value: 420 nA Stop 2 mode extends battery life beyond 7 days; Chrom-ART accelerates GUI layer compositing without CPU load. | Use Scenario: Handheld ECG/SpO₂ monitor with touch-enabled GUI, real-time waveform rendering, and clinical data export. IC Role / Device Role / Timing Role: Real-time signal processor running DSP filters on ADC samples, driving 480×272 LCD via LTDC, and storing encrypted patient logs in dual-bank Flash. Use Value: Hardware oversampling (16-bit effective) improves ECG SNR; AES+HASH ensures HIPAA-compliant data storage. |
| Industrial HMI Panel | Energy Meter with Display |
Use Scenario: DIN-rail mounted panel with 7-inch TFT, CAN fieldbus interface, and isolated RS-485 communication. IC Role / Device Role / Timing Role: Central HMI controller handling multitouch input, CAN-based PLC command parsing, and MIPI DSI-driven display update at 60 Hz. Use Value: 136 I/Os support direct GPIO mapping for status LEDs and buttons; CAN 2.0B + USB OTG enables dual-fieldbus diagnostics. | Use Scenario: Smart electricity meter with segmented LCD + graphical TFT overlay, tamper detection, and secure firmware updates. IC Role / Device Role / Timing Role: Metering SoC performing metrology calculations, driving dual-display subsystems (segmented + TFT), and validating signed firmware images via HASH engine. Use Value: 305 nA VBAT mode maintains RTC and backup registers during main power loss; readout protection prevents unauthorized firmware extraction. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-low-power MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32L4R9AI | Same core, 2 MB Flash, but LQFP144 package (no DSI); adds FMC for external SDRAM | Better suited for non-graphics applications requiring large external RAM (e.g., protocol stacks) | Select when display interface is not required and external memory bandwidth > Octo-SPI capability |
| STM32U575ZIT6 | Higher security (PUF, SE), 160 MHz Cortex-M33, lower active current (65 µA/MHz), but no MIPI DSI or LTDC | Targeted at secure IoT endpoints where cryptographic agility outweighs embedded graphics needs | Select for PSA Level 3 certified designs where display is handled externally or omitted |
Compared with STM32L4R9AI and STM32U575ZIT6, the STM32L4S7ZIT6 uniquely balances ultra-low-power operation, integrated MIPI DSI/LTDC, and hardware crypto - making it the only choice among the three for cost-sensitive, battery-powered TFT displays requiring on-chip graphics acceleration and secure firmware updates.
Availability
STM32L4S7ZIT6 is available at Aetrix Electronics and suitable for smart wearables, portable medical devices, industrial HMIs, and energy meters requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for STM32L4S7ZIT6 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 components for industrial, automotive, and consumer markets.
The STM32L4 series targets ultra-low-power embedded applications demanding high performance per microwatt, with the L4S subfamily specifically engineered for advanced human-machine interfaces featuring integrated display controllers and hardware-accelerated graphics.
FAQ
What is the maximum operating temperature range for STM32L4S7ZIT6?
The STM32L4S7ZIT6 is qualified for industrial and extended temperature operation from -40 °C to +125 °C ambient, verified per JEDEC JESD22-A108. This rating applies to all operating modes including Run, Stop, and Standby, and is validated with full peripheral functionality enabled at the upper limit.
Does STM32L4S7ZIT6 support hardware-based secure boot?
Yes - it implements secure boot via embedded ROM bootloader with configurable readout protection (RDP) levels, option bytes for boot source selection (system memory, Flash, or SRAM), and hardware-enforced signature verification using public-key cryptography when paired with external secure elements or custom key provisioning flows.
Can the MIPI DSI interface drive a 1080p display?
No - the MIPI DSI host supports two lanes at up to 500 Mbit/s each (1 Gbit/s aggregate), sufficient for QVGA (320×240) at 60 Hz or XGA (1024×768) at ≤30 Hz. Driving native 1080p (1920×1080) requires higher bandwidth and is outside the specified capability of this DSI implementation.
How many independent power domains does STM32L4S7ZIT6 have?
It has three independent power domains: VDD/VSS (digital core), VDDA/VSSA (analog), and VDDIO2/VSSIO2 (I/O bank). Each domain can be supplied from separate regulators or tied together with appropriate decoupling, enabling precise noise isolation for ADC, DAC, and high-speed interfaces.
STM32L4S7ZIT6 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 144-LQFP
- Series:
- STM32L4
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M4
- Core Size:
- 32-Bit Single-Core
- Speed:
- 120MHz
- Connectivity:
- CANbus, EBI/EMI, I2C, IrDA, LINbus, MMC/SD, SAI, SPI, UART/USART, USB OTG
- Peripherals:
- Brown-out Detect/Reset, DMA, LCD, POR, PWM, WDT
- Number of I/O:
- 115
- Program Memory Size:
- 2MB (2M x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 640K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.71V ~ 3.6V
- Data Converters:
- A/D 16x12b; D/A 2x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32L4S7ZIT6 FAQ
1.How can I place an order for STM32L4S7ZIT6 through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32L4S7ZIT6 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for STM32L4S7ZIT6 reliable?
The price and inventory of STM32L4S7ZIT6 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32L4S7ZIT6 is usually 5 days.
3.What payment methods are accepted for STM32L4S7ZIT6?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32L4S7ZIT6 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32L4S7ZIT6?
STM32L4S7ZIT6 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32L4S7ZIT6 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for STM32L4S7ZIT6?
For technical support, including STM32L4S7ZIT6 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32L4S7ZIT6 requirements.
6.How does Aetrix verify that STM32L4S7ZIT6 is sourced from the original manufacturer or authorized distributors?
All STM32L4S7ZIT6 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that STM32L4S7ZIT6 meets industry standards.
7.What is the process for return or replacement of STM32L4S7ZIT6?
All STM32L4S7ZIT6 units undergo pre-shipment inspection (PSI). If there is an issue with STM32L4S7ZIT6, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The STM32L4S7ZIT6 part is unused and in its original packaging.
Return procedure for STM32L4S7ZIT6:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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