STMicroelectronics · Electronic Components
STM32U3B5CI
Ultra-low-power Arm Cortex-M33 with TrustZone MCU, 96 MHz, 2 MB flash, 640 KB RAM, HSP, I3C, SMPS
Part NumberSTM32U3B5CI
ManufacturerSTMicroelectronics
AvailabilityAvailable to order — request a quote
Specifications
SeriesSTM32U3
PackageLQFP 48 7x7x1.4 mm, UFQFPN 48 7x7x0.55 mm
CoreArm Cortex-M33 with TrustZone
Frequency Mhz96
Flash Kb2048.0
Ram Kb640.0
InterfacesI2C: 4; SPI: 3; USART: 3; UART: 1; USB: USB OTG FS; CAN-FD: 2; I3C: 2; External memory: Octo SPI, SPI; Additional: ADF,
AnalogADC12: 2 conv / 10, 11 ch; DAC12: 2; Comparators: 2; Op amps: 2
Timers16-bit timers: 10; 32-bit timers: 3; Motor control timers: 1; Other: Dual Watchdog, RTC, SysTick
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 STM32U3B5CI available?
We can source STM32U3B5CI 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 STM32U3B5CI by STMicroelectronics obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If STM32U3B5CI 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 STM32U3B5CI?
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 STM32U3B5CI?
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.