STM32L4S9ZIT6XXX STMicroelectronics Integrated Circuit (Quad Flat Packages) In Stock
STM32L4S9ZIT6XXX is an ultra-low-power ARM Cortex-M4 microcontroller by STMicroelectronics with up to 120 MHz, 2 MB Flash, 640 KB SRAM in LQFP-144 package. From $18 in stock worldwide shipping.
- Manufacturer
- STMicroelectronics
- Package
- Quad Flat Packages
- Pin Count
- 144
- Lifecycle
- ACTIVE UNCONFIRMED
- Datasheet
- STM32L4S9ZIT6XXX Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of STM32L4S9ZIT6XXX?
- Ultra-low-power Cortex-M4 core at 120 MHz for energy-efficient embedded designs
- 2 MB Flash and 640 KB SRAM for data-intensive IoT and wearable applications
- Integrated TFT-LCD controller and DSI interface for graphical display support
- AES-256 hardware encryption and secure boot for IoT security requirements
What is STM32L4S9ZIT6XXX used for?
The STM32L4S9ZIT6XXX targets battery-powered IoT devices, smart wearables, and handheld consumer electronics requiring graphical displays. Its combination of ultra-low standby current below 30 nA and DSI/LTDC display interfaces makes it ideal for smartwatches and industrial HMI panels. Medical monitors, GPS trackers, and energy metering equipment also benefit from its 120 MHz performance with low active-mode current.
What are the specifications of STM32L4S9ZIT6XXX?
| YTEOL | 8 |
| Package | Quad Flat Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| HTS Code | 8542.31.00.30 |
| Country of Origin | Mainland China, Taiwan |
Where can I find the STM32L4S9ZIT6XXX datasheet?
STM32L4S9ZIT6XXX Datasheet DownloadOfficial datasheet from STMicroelectronics
What are equivalent replacements for STM32L4S9ZIT6XXX?
Compatible alternatives and drop-in replacements for STM32L4S9ZIT6XXX:
RISC Microcontroller, 32-Bit, FLASH, CORTEX-M4 CPU, 120MHz, CMOS, PQFP144
RISC Microcontroller, 32-Bit, FLASH, CORTEX-M4 CPU, 120MHz, CMOS, PQFP144
Frequently Asked Questions
What core frequency and memory does the STM32L4S9ZIT6XXX offer for display-intensive IoT designs?
The STM32L4S9ZIT6XXX runs an ARM Cortex-M4 core at up to 120 MHz, backed by 2 MB of Flash and 640 KB of SRAM. This combination supports real-time graphics rendering via the integrated LTDC and MIPI-DSI controller, enabling smooth UI performance at very low active-mode current typically around 100 µA/MHz.
How does the STM32L4S9ZIT6XXX achieve ultra-low power in standby mode for wearable applications?
The STM32L4S9ZIT6XXX achieves a standby current below 30 nA with RTC and full RAM retention, making it suitable for wearables that sleep for extended periods. It also offers multiple low-power stop modes drawing as little as 50 nA, with wake-up times under 5 µs from Stop 2 mode, extending battery life significantly.
When is the STM32L4S9ZIT6XXX a stronger choice than STM32L4R9 for embedded display projects?
The STM32L4S9ZIT6XXX includes the same 120 MHz Cortex-M4, 2 MB Flash, and DSI display interface as the STM32L4R9, but adds an external SDRAM/SRAM memory bus expansion. For designs needing a frame buffer larger than 640 KB of on-chip SRAM, the L4S9 variant allows connecting external RAM at up to 32 MB, supporting 24-bit color at higher resolutions.
Which security features does the STM32L4S9ZIT6XXX provide for connected product certifications?
The STM32L4S9ZIT6XXX integrates a hardware AES-256 accelerator, SHA-256, PKI, and a true random number generator (TRNG). It also supports secure boot, secure storage with TrustZone-M isolation, and a hardware memory protection unit (MPU) with 8 regions, meeting PSA Certified and IEC 62443 security requirements for connected industrial and consumer products.
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Why Buy from FindMyChip
About STMicroelectronics
STMicroelectronics is a global semiconductor leader serving customers across the spectrum of electronics applications. ST's products are found in a wide range of applications including automotive, industrial, personal electronics, and communications.
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