STMicroelectronics · Electronic Components
STM32L031E4
ultra-low-power Arm Cortex-M0+ MCU with 16-Kbytes of Flash memory, 32 MHz CPU
Part NumberSTM32L031E4
ManufacturerSTMicroelectronics
AvailabilityAvailable to order — request a quote
Specifications
SeriesSTM32L0
PackageWLCSP 25 2.1x2.5x0.6 P 0.4 mm
CoreArm Cortex-M0+
Frequency Mhz32
Flash Kb16.0
Ram Kb8.0
InterfacesI2C: 1; SPI: 1; USART: 1
AnalogADC12: 1 conv / 10 ch; Comparators: 2
Timers16-bit timers: 3; Other: Dual Watchdog, RTC, SysTick
SecuritySecurity: Abnormal Situation Handling, Application Lifecycle, Secure Boot, Secure Install/Update, Secure Storage, Silico
Supply Voltage1.65–3.6 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 STM32L031E4 available?
We can source STM32L031E4 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 STM32L031E4 by STMicroelectronics obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If STM32L031E4 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 STM32L031E4?
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 STM32L031E4?
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.