STMicroelectronics · Electronic Components
STM32L433RB
Ultra-low-power with FPU Arm Cortex-M4 MCU 80 MHz with 128 Kbytes of Flash memory, USB FS, LCD
Part NumberSTM32L433RB
ManufacturerSTMicroelectronics
AvailabilityAvailable to order — request a quote
Specifications
SeriesSTM32L4
PackageLQFP 64 10x10x1.4 mm, UFBGA 64 5x5x0.6 P 0.5 mm, WLCSP 64 3.2x3.2x0.6 P 0.35 mm
CoreArm Cortex-M4
Frequency Mhz80
Flash Kb128.0
Ram Kb64.0
InterfacesI2C: 3; SPI: 3; USART: 3; USB: USB Device; CAN2.0: 1; External memory: Quad SPI; Additional: SAI, SD/MMC
AnalogADC12: 1 conv / 16 ch; DAC12: 2; Comparators: 2; Op amps: 1
Timers16-bit timers: 5; 32-bit timers: 1; Other: Dual Watchdog, RTC, SysTick
SecurityCrypto: TRNG; Security: Abnormal Situation Handling, Application Lifecycle, Isolation Firewall, Secure Boot, Secure Inst
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 STM32L433RB available?
We can source STM32L433RB 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 STM32L433RB by STMicroelectronics obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If STM32L433RB 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 STM32L433RB?
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 STM32L433RB?
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.