STMicroelectronics · Electronic Components
STM32L4S9AI
Ultra-low-power with FPU Arm Cortex-M4 MCU 120 MHz with 2048 kbytes of Flash memory, USB OTG, DFSDM, LCD-TFT, MIPI DSI, AES-256, HASH
Part NumberSTM32L4S9AI
ManufacturerSTMicroelectronics
AvailabilityAvailable to order — request a quote
Specifications
SeriesSTM32L4
PackageUFBGA 169 7x7x0.6 P 0.5 mm
CoreArm Cortex-M4
Frequency Mhz120
Flash Kb2048.0
Ram Kb640.0
InterfacesI2C: 4; SPI: 3; USART: 3; UART: 2; USB: USB OTG FS; CAN2.0: 1; External memory: Dual Octo SPI, FMC; Additional: DFSDM, P
AnalogADC12: 1 conv / 15 ch; DAC12: 2; Comparators: 2; Op amps: 2
Timers16-bit timers: 11; 32-bit timers: 2; Other: Dual Watchdog, RTC, SysTick
SecurityCrypto: AES, MD5, SHA-1, TRNG; Security: Abnormal Situation Handling, Application Lifecycle, Crypto Engine, Isolation Fi
Supply Voltage1.71–3.6 V
Temp Range-40.0 to 85.0 °C
RH Electronics, Inc. — independent stocking distributor since 1982.
Every shipment inspected on receipt · ISO 9001:2015 · ANSI/ESD S20.20 · ERAI member since 1998 · GIDEP participant
Every shipment inspected on receipt · ISO 9001:2015 · ANSI/ESD S20.20 · ERAI member since 1998 · GIDEP participant
Frequently asked
Is STM32L4S9AI available?
We can source STM32L4S9AI even if it isn't in our active stock list. As an independent distributor we reach inventory outside the franchise channel — including hard-to-find and obsolete parts. Send us a quote request.
Is STM32L4S9AI by STMicroelectronics obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If STM32L4S9AI has been discontinued, we can often source remaining stock or qualified alternates. Contact us with your quantity and target date.
How does RH Electronics verify parts like STM32L4S9AI?
Every incoming shipment is inspected under our ISO 9001:2015 quality system — documentation, markings, and construction checked against known-good references. For deeper analysis, we direct work through accredited independent labs. We've been an ERAI member since 1998 and a GIDEP participant.
Can you find a cross-reference or alternate for STM32L4S9AI?
Yes. Our team reads part numbers the way they were designed — decoding family, speed, temperature grade, package, and reliability level — to identify acceptable alternates when the exact part isn't available. Submit a quote request and we'll advise.